The slope of the tangent line to a given polar curve at a specified point
1. Determine the polar equation: Identify the equation that describes the polar curve. It should be in the form
\( r = f(θ).\)
2. Convert to Cartesian coordinates: Use the relationships
\( x = r*cos(θ) and y = r*sin(θ)\)
to convert the polar equation to Cartesian coordinates.
3. Find the derivatives: Compute the first derivatives of x and y with respect to
\(θ (dx/dθ and dy/dθ) \)
using the chain rule and product rule.
4. Determine the slope dy/dx: Use the quotient rule to find the slope of the tangent line by dividing
\(dy/dθ by dx/dθ (dy/dx = (dy/dθ) / (dx/dθ)).\)
5. Plug in the specified value of θ: Substitute the given value of θ into the slope equation to find the slope of the tangent line at that point.
Remember to simplify your expressions as much as possible throughout the process, and be careful with trigonometric identities and rules of differentiation.
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The crane can be adjusted for any angle 00 ≤ θ ≤ 900 any extension 0 ≤ x ≤ 5 m. For a suspended mass of 120 kg, determine the moment developed at A as a function of x and θ. What values of both x and θ develop the maximum possible moment at A? Compute this moment. Neglect the size of the pulley at B.
As per the given suspended mass, the function that makes values of both x and θ develop the maximum possible moment at A is written as 14715 Nm (clockwise)
While looking into the given question, we have identified the following values, adjusted for any angle 00 ≤ θ ≤ 900 any extension 0 ≤ x ≤ 5 m.
Now, Let us consider an equation to calculate the moment using θ and x as variables around point A.
=> ((9−1.5) + x) (cosθ) (120) (9.81)
When we simplifying the given equation gives us:
=> MA = (7.5+x) 1177.2 cosθ
Here the maximum moment will develop if θ = 0 and x=5 m.
Now, by substituting these values gives us:
=> MA=(7.5+x)1177.2cosθ
=> MA=(7.5+5)1177.2cos00
Therefore, the value of MA is written as, 14715 Nm (clockwise)
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Wonderpillow is the trading name used by Alan. The business has long-term liabilities of £100 000, non-current assets of £289 770 and current assets of £124 400. The total of
current liabilities less current assets is £3 340. What is the total for equity?
• a. £186 430
• b. £193 110
• c. £293 110
• d. £286 430
The total equity for Wonderpillow is £193,110.
Equity represents the residual interest in the assets of a business after deducting liabilities. To calculate the total equity, we need to subtract the total liabilities from the total assets.
Given:
Long-term liabilities = £100,000
Non-current assets = £289,770
Current assets = £124,400
Current liabilities - current assets = £3,340
First, we calculate the total liabilities:
Total liabilities = Long-term liabilities + (Current liabilities - current assets)
Total liabilities = £100,000 + (£3,340)
Total liabilities = £103,340
Next, we calculate the total equity:
Total equity = Total assets - Total liabilities
Total equity = Non-current assets + Current assets - Total liabilities
Total equity = £289,770 + £124,400 - £103,340
Total equity = £310,830 - £103,340
Total equity = £207,490
Therefore, the correct answer is not listed among the options provided. The total equity for Wonderpillow is £207,490, which is not included in the given choices
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The number of blueberry muffins that a baker makes each day is 40% of the total number of muffins she makes, On Tuesday, the baker makes a total of 60 muffins how many muffins did she make on tuesday
The number of blueberry muffins the baker makes on Tuesday is given by the equation A = 24 blueberry muffins
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the number of blueberry muffins the baker makes be A
Now , the equation will be
The total number of muffins the baker makes on Tuesday = 60 muffins
The percentage of blueberry muffins = 40 %
So ,
The number of blueberry muffins the baker makes A = total number of muffins the baker makes on Tuesday x percentage of blueberry muffins
Substituting the values in the equation , we get
The number of blueberry muffins the baker makes A = 60 x ( 40/100 )
On simplifying the equation , we get
The number of blueberry muffins the baker makes A = 60 x 0.4
The number of blueberry muffins the baker makes A = 24 blueberry muffins
Therefore , the value of A is 24
Hence , the number of muffins is 24
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What is the remainder when f(x) = 2x4 + x3 – 8x – 1 is divided by x - 2?
A. -23
B. 23
C. -3
D. 3
I need help
Answer:
B.23
Step-by-step explanation:
By the remainder theorem, the remainder is going to be f(2).
That is equal to 2*2^4+2^3-8*2-1=23
I hope this helped you.
Why do parallel lines never cross?
Answers Are
Answer:
C. Because they have the same slopes and different y-intercepts
Step-by-step explanation:
Answer:
Your answer would be the 3rd one.
Because they have the same slopes and different y-intercepts.
I hope that this is the answer you were looking for!
Have a great day!
Suppose a drawer contains six white socks, four blue socks, and eight black socks. We draw one sock from the drawer and it is equally likely that any one of the socks is drawn. Find the probabilities of the events in parts (a)-(e). a. Find the probability that the sock is blue. (Type an integer or a simplified fraction.) b. Find the probability that the sock is white or black. (Type an integer or a simplified fraction.) c. Find the probability that the sock is red. (Type an integer or a simplified fraction.) d. Find the probability that the sock is not white. (Type an integer or a simplified fraction.) e. We reach into the drawer without looking to pull out four socks. What is the probability that we get at least two socks of the same color? (Type an integer or a simplified fraction.)
a. P(Blue) = 4 / (6+4+8) = 4/18 = 2/9
b. P (White or Black) = P(White) + P(Black)= 6/18 + 8/18 = 14/18 = 7/9
c. P(Red) = 0 (No red socks are present in the drawer)
d. P (not white) = P(Blue) + P(Black) = 4/18 + 8/18 = 12/18 = 2/3
e. There are two possible scenarios to get at least 2 socks of the same color. Either we can have 2 socks of the same color or 3 socks of the same color or 4 socks of the same color. The probability of getting at least 2 socks of the same color is the sum of the probabilities of these three cases.
P(getting 2 socks of the same color) = (C(3, 1) × C(6, 2) × C(12, 2)) / C(18, 4) = 0.4809
P(getting 3 socks of the same color) = (C(3, 1) × C(6, 3) × C(8, 1)) / C(18, 4) = 0.0447
P(getting 4 socks of the same color) = (C(3, 1) × C(6, 4)) / C(18, 4) = 0.0015
P(getting at least 2 socks of the same color) = 0.4809 + 0.0447 + 0.0015 = 0.5271So, the required probability is 0.5271.
There are six white socks, four blue socks, and eight black socks in a drawer. One sock is picked out of the drawer, and there is an equal chance that any sock will be selected. The following events' likelihood must be determined:
a) The probability that the sock is blue is found by dividing the number of blue socks by the total number of socks in the drawer.
b) The probability that the sock is white or black is obtained by adding the probability of drawing a white sock and the probability of drawing a black sock.
c) Since no red socks are present in the drawer, the probability of drawing a red sock is 0.
d) The probability of not choosing a white sock is obtained by adding the probability of selecting a blue sock and the probability of selecting a black sock.
e) To have at least two socks of the same color, we may either have two, three, or four socks of the same color. We find the probabilities of each case and add them up to get the probability of at least two socks of the same color.
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A bolt manufacturer is very concerned about the consistency with which his machines produce bolts. The bolts should be 0.2 centimeters in diameter. The variance of the bolts should be 0.025. A random sample of 15 bolts has an average diameter of 0.21 cm with a standard deviation of 0.1587. Can the manufacturer conclude that the bolts vary by more than the required variance at α=0.01 level? Step 1 of 5: State the hypotheses in terms of the standard deviation. Round the standard deviation to four decimal places when necessary. A bolt manufacturer is very concerned about the consistency with which his machines produce bolts. The bolts should be 0.2 centimeters in diameter. The variance of the bolts should be 0.025. A random sample of 15 bolts has an average diameter of 0.21 cm with a standard deviation of 0.1587. Can the manufacturer conclude that the bolts vary by more than the required variance at α=0.01 level? Step 2 of 5: Determine the critical value(s) of the test statistic. If the test is twotailed, separate the values with a comma. Round your answer to three decimal places. A bolt manufacturer is very concerned about the consistency with which his machines produce boits. The bolts should be 0.2 centimeters in diameter. The variance of the boits should be 0.025. A random sample of 15 bolts has an average diameter of 0.21 cm with a standard deviation of 0.1587. Can the manufacturer conclude that the bolts vary by more than the required variance at α=0.01 level?
To determine if the bolts vary by more than the required variance, we can conduct a hypothesis test. The null hypothesis (H₀) states that the variance of the bolts is equal to or less than the required variance (σ² ≤ 0.025), while the alternative hypothesis (H₁) states that the variance is greater than the required variance (σ² > 0.025).
Next, we need to determine the critical value(s) of the test statistic. Since we are testing for variance, we will use the chi-square distribution. For a one-tailed test with α = 0.01 and 14 degrees of freedom (n-1), the critical value is 27.488.
Now, we can compare the test statistic to the critical value. The test statistic is calculated as (n-1) * s² / σ², where n is the sample size (15), s² is the sample variance (0.1587²), and σ² is the required variance (0.025).
If the test statistic is greater than the critical value, we reject the null hypothesis and conclude that the bolts vary by more than the required variance. Otherwise, we fail to reject the null hypothesis.
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To determine if the bolts vary by more than the required variance, we can conduct a hypothesis test. The null hypothesis (H₀) states that the variance of the bolts is equal to or less than the required variance (σ² ≤ 0.025), while the alternative hypothesis (H₁) states that the variance is greater than the required variance (σ² > 0.025).
Next, we need to determine the critical value(s) of the test statistic. Since we are testing for variance, we will use the chi-square distribution. For a one-tailed test with α = 0.01 and 14 degrees of freedom (n-1), the critical value is 27.488.
Now, we can compare the test statistic to the critical value. The test statistic is calculated as (n-1) * s² / σ², where n is the sample size (15), s² is the sample variance (0.1587²), and σ² is the required variance (0.025).
If the test statistic is greater than the critical value, we reject the null hypothesis and conclude that the bolts vary by more than the required variance. Otherwise, we fail to reject the null hypothesis.
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from 27 days to 30 days.
Answer:
3 days away????
Step-by-step explanation:
The area of a parallelogram is represented by 3x² + 15x-2xy-10y.
Write this expression in factored form.
the factored form of the expression 3x² + 15x - 2xy - 10y is (x + 5)(3x - 2y).
How to solve the expression?
To factor the expression 3x² + 15x - 2xy - 10y, we need to look for common factors and grouping of terms. First, we can factor out 3x from the first two terms and -2y from the last two terms:
3x(x + 5) - 2y(5 + x)
Now we can see that both terms have a common factor of (x + 5), so we can factor it out:
(x + 5)(3x - 2y)
Therefore, the factored form of the expression 3x² + 15x - 2xy - 10y is (x + 5)(3x - 2y).
This expression represents the area of a parallelogram with base x+5 and height 3x-2y. The factored form makes it easier to see the relationship between the dimensions of the parallelogram and the expression for its area. For example, we can see that the area is zero when either factor is zero, meaning that the base or height of the parallelogram is zero. We can also use the factored form to find the dimensions of a parallelogram given its area.
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How do you solve for x and y in this matrix equation?
Answer:
Hi!
I might be able to help you!
The Matrix Solution
It means that we can find the values of x, y and z (the X matrix) by multiplying the inverse of the A matrix by the B matrix.
The matrix method is similar to the method of Elimination as but is a lot cleaner than the elimination method. Solving systems of equations by Matrix Method involves expressing the system of equations in form of a matrix and then reducing that matrix into what is known as Row Echelon Form.
I apologize if this didn't help you, but God bless you and your family!
-10.4166666667 as a fraction
Answer:
125/12
Step-by-step explanation:
lets take n = -10.4166666
multiply this by 100 so we get the recurring part as the decimals
100n = -1041.66666
now we multiply our original n value by 10 for simplicity while calulating
10n = -104.16666
then we subtract 10n from 100n
90n = -1041.666 - (- 104.16666)
the recurring part will cancel out infinitely
so we get
90n = 937.5
then we solve for n
n = 937.5/90
simplifying will get us n= 125/12
A sum of $950 is invested at 17% interest. If A(t) is the amount investment at time t for the case of continuous compounding, w differential equation and an initial condition satisfied by A(t) Select the correct answer. dA O dt17A, AO) 950 dA 0.17A, AO)95 dA dA O 0.17A(0. A- 950 dA O 0.17A, A(O)950 O none of those
ANSWER: dA/dt=0.17A A(0)=950
The correct differential equation and initial condition for the continuous compounding of a sum of 950$ at 17% interest are given by dA/dt = 0.17A and A(0) = 950. This represents the rate of change of the amount A(t) with respect to time and the initial investment value, respectively.
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Ms Lucas has 9 cases of crayon with 52 boxes in each case Ms Bruns has 6 cases of crayon with a 104 in each case How many boxes of crayons do both teachers have? Use RDW strategy to solve.Write your answer as a statement.
Answer:
1092
Step-by-step explanation:
Step one:
given data
Ms Lucas has 9 cases of crayon with 52 boxes in each case
total crayon is
9*52= 468
Ms Bruns has 6 cases of crayon with a 104 in each case
total crayon is
6*104= 624
The total crayon is
468+624= 1092
pls help me some people do this this right
Its say list 3 not 2 but 3
Answer:
11. (0,-2) (3,3) (-2,5)
12. (0,4) (2,4) (5,-3)
Step-by-step explanation:
The solutions to the graphs are anything that is in the shaded area, so any ordered pair that is in the shaded area should work as a solution for your questions.
Hope this helps you!
if we are testing the difference between the means of two normally distributed independent populations with samples of n1= 10, n2 = 10, the degrees of freedom for the t statistic is
The degree of freedom for the t statistic, in this case, is 18.
How to test the difference between the means?Hi! To answer your question about testing the difference between the means of two normally distributed independent populations with sample sizes of n1 = 10 and n2 = 10, we will use the formula for degrees of freedom (df) in a two-sample t-test:
df = (n1 - 1) + (n2 - 1)
Plug in the sample sizes, n1 = 10 and n2 = 10:
df = (10 - 1) + (10 - 1)
df = 9 + 9
df = 18
The degrees of freedom for the t statistic in this case is 18.
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when a plumber is called the cost of the service call is 65$ for them to show up at your house, plus an additional $30 per hour
PLEASE SOLVE ALL OF THEM I WILL GIVE U THE WORLD
Answer:
Step-by-step explanation:
y=30x+65
y=30(3)+65
y=90+65
y=155
HOW CAN I SIMPLIFY THESE FUNCTIONS:1) SIN(TAN^-1( X / ROOT X^2+1 ) )2) 8^LOGX^2 / 23) TAN (SEC^-1 ( Z / 5) )
The simplified forms of the functions are:
X / √(X^2 + 1)
X^6 / 2
TAN(SEC^-1(Z / 5))
To simplify the given functions, we can use trigonometric identities and properties of logarithms. Let's go through each function:
Simplifying SIN(TAN^-1(X / √(X^2 + 1)))
We start by using the identity TAN^-1(x) = SIN^-1(x / √(x^2 + 1)). Rewriting the function using this identity, we get:
SIN(TAN^-1(X / √(X^2 + 1))) = SIN(SIN^-1(X / √(X^2 + 1)) / √(1 + (X / √(X^2 + 1))^2))
Since SIN and SIN^-1 are inverse functions, they cancel each other out, simplifying the expression to:
SIN(TAN^-1(X / √(X^2 + 1))) = X / √(X^2 + 1)
Therefore, the simplified form of the first function is X / √(X^2 + 1).
Simplifying 8^LOG(X^2) / 2
Using the logarithmic property that states LOG(b^a) = a * LOG(b), we can rewrite the function as:
8^LOG(X^2) / 2 = (2^3)^LOG(X^2) / 2 = 2^(3 * LOG(X^2)) / 2 = 2^(LOG((X^2)^3)) / 2
Applying another logarithmic property, LOG(b^a) = a * LOG(b), we simplify further:
2^(LOG((X^2)^3)) / 2 = 2^((3 * LOG(X^2))) / 2 = 2^(LOG(X^6)) / 2
Using the property 2^(LOG(b)) = b, we have:
2^(LOG(X^6)) / 2 = X^6 / 2
Therefore, the simplified form of the second function is X^6 / 2.
Simplifying TAN(SEC^-1(Z / 5))
Using the identity SEC^-1(x) = COS^-1(1 / x), we can rewrite the function as:
TAN(SEC^-1(Z / 5)) = TAN(COS^-1(1 / (Z / 5)))
Applying the identity COS^-1(1 / x) = SEC^-1(x), we have:
TAN(COS^-1(1 / (Z / 5))) = TAN(SEC^-1(Z / 5))
Therefore, the simplified form of the third function is TAN(SEC^-1(Z / 5)).
In summary, the simplified forms of the given functions are:
X / √(X^2 + 1)
X^6 / 2
TAN(SEC^-1(Z / 5))
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Select ALL the expressions that equal 3^4.
1. 7
2. 4^3
3.12
4.81
5.64
6.9^2
PLSSS HELPPP THIS IS URGENT!!
Answer:
4 - 6
Step-by-step explanation:
3^4=81
9^2=81
A forest contains 24 elk, of which, 8 are captured, tagged, and released. a certain time later, 4 of the 24 elk are captured. what is the probability that 3 of these 4 have been tagged?
The probability that 3 out of the 4 captured elk have been tagged is approximately 0.0053.
To solve this problemWe can use the concept of combinations.
The total number of ways to choose 4 elk out of 24 is given by the combination formula:
C(24, 4) = 24! / (4!(24-4)!) = 10,626
Now, we need to consider the number of ways to choose 3 tagged elk out of the 8 tagged elk and 1 untagged elk. The number of ways to do this is given by:
C(8, 3) * C(1, 1) = 8! / (3!(8-3)!) * 1! / (1!(1-1)!) = 56
Therefore, the probability that 3 out of the 4 captured elk have been tagged is:
P = (Number of ways to choose 3 tagged elk out of 8 tagged elk and 1 untagged elk) / (Total number of ways to choose 4 elk out of 24)
P = 56 / 10,626
Calculating this division gives us the probability:
P ≈ 0.0053
So, the probability that 3 out of the 4 captured elk have been tagged is approximately 0.0053 .
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Which of the following statements is not true about chi-square distributions? The mean decreases as the degrees of freedom increase. OPG? < 0) = 0 O PU2 > 3) is larger for a chi-square distribution with df = 10 than for df = 1 There are an infinite number of chi-square distributions, depending on degrees of freedom. They are always skewed to the right Previous Only saved at 4:44pm
The statement "The mean decreases as the degrees of freedom increase" is not true about chi-square distributions.
Is it true that the mean of a chi-square distribution decreases as the degrees of freedom increase?In fact, the mean of a chi-square distribution is equal to its degrees of freedom. It does not decrease as the degrees of freedom increase.
The mean remains constant regardless of the degrees of freedom. This is an important characteristic of chi-square distributions.
Regarding the other statements:
The statement "OPG? < 0) = 0" is true. The probability of a chi-square random variable being less than zero is always zero, as chi-square values are non-negative.The statement "OPU2 > 3) is larger for a chi-square distribution with df = 10 than for df = 1" is true. As the degrees of freedom increase, the right-tail probability of a chi-square distribution also increases.The statement "There are an infinite number of chi-square distributions, depending on degrees of freedom" is true. The number of chi-square distributions is infinite because the degrees of freedom can take any positive integer value.The statement "They are always skewed to the right" is generally true. Chi-square distributions tend to be skewed to the right, especially when the degrees of freedom are small.In summary, the statement that is not true about chi-square distributions is that the mean decreases as the degrees of freedom increase.
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24.7% of the products in the local shop are specialty soaps. 76% of those soaps are made with fresh herbs. if there are 350 bars of specialty soap in the shop, approximately how many of them are not made with fresh herbs? round your answer up to nearest whole number
we know that 76% of the specialty soaps are made with fresh herbs, and we also know that there are a total of 350 specialty soap bars, so how many are made with fresh herbs? well, just 76% of those 350
\(\begin{array}{|c|ll} \cline{1-1} \textit{\textit{\LARGE a}\% of \textit{\LARGE b}}\\ \cline{1-1} \\ \left( \cfrac{\textit{\LARGE a}}{100} \right)\cdot \textit{\LARGE b} \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{76\% of 350}}{\left( \cfrac{76}{100} \right)350}\implies 266\)
Tell whether the angles are complementary or supplementary. Then find the value of x.
Answer:
Those are complementary angles. Also, x would equal 55 in this situation
Step-by-step explanation:
2x - 20 = 90
2x = 110
x = 55
En la figura adjunta se muestra un estuche de brocas de acero que sirven para perforar paredes de cemento. Las brocas están numeradas de menor a mayor tamaño y las dimensiones están dadas en pulgadas.
En la figura, por falta de espacio, se dan solo las dimensiones de las brocas 1 y 12. Se sabe que las demás brocas son de 9/16 de pulgadas, 3/16 de pulgada, 7/16 de pulgada, 5/16 pulgada, 11/16 pulgada, 1/4 pulgada, 3/8 pulgada, 1/2 pulgada, 5/8 pulgada y 1/8 de pulgada.
Identifica la medida de las brocas 2 a la 11 en pulgadas y ordénalas de menor a mayor tamaño.
Answer:
1/16 2/16 3/16 4/16 5/16 6/16 7/16 8/16 9/16 10/16 11/16 12/16
Step-by-step explanation:
Para la identificación de las brocas tenemos dos consideraciones:
1.- Fracciones de igual denominador son mas grandes en orden creciente según vayan creciendo los numeradores, de tal forma que entre
9/16 3/16 7/16 5/16 11/16 el orden es como sigue ( de menor a mayor)
3/16 5/16 7/16 9/16 11/16
2.- Las fracciones con denominadores distintos pueden llevarse a denominador común /16 amplificando la fracción es decir por ejemplo
1/4 = 1*4/4*4 = 4/16
Con ese procedimiento las convertimos todas al caso señalado en el punto anterior y ordenamos
1/4 = 4/16
3/8 = 6/16
1/2 = 8/16
5/8 = 10/16
1/8 = 2/16
Entonces hay diez brocas la primera será 1/16 y la número 12 12/16
Y finalmente el orden es:
1/16 2/16 3/16 4/16 5/16 6/16 7/16 8/16 9/16 10/16 11/16 12/16
PLEASE HELP!! WILL GIVE BRAINLIEST!!!
Find the domain and range:
Answer:
Domain: (-∞, ∞)
Range: (-∞, ∞)
Step-by-step explanation:
The arrows on the ends of the line and no restrictions indicate that the line moves down and left forever (Setting the first value of the domain and range to -∞) and up and right forever. (Setting the last value of the domain and range to ∞).
Therefore,
Domain: (-∞, ∞)
Range: (-∞, ∞)
please help me I need this for my algebra test and I don’t understand it
Answer: Question E: The answer is that A(9) is greater.
Step-by-step explanation:
For questions A and C, you can see that the table is exponentially growing. So the equation will use multiplication. You can also see the value of the equation is growing by x2.
So you could say the table starts at a base of 1/2, then grows exponentially at a rate of 2. (Basically saying the value grows x2 per term). The equation will result in y= 1/2(2)^x
For questions B and D, you can see that the graph is growing linearly. So the equation will use multiplication.
By drawing a line between the lines you can easily see the growth of the triangle. You can then tell the 0th term to 1st term goes right 1 and up 10.
Next, you look at the 1st term to the 2nd term. You can tell that it goes right 1 and up 10. So, the rate is 10 per term. (10x) and it starts at 2 (+2). The equation will result in y=10x+2
Question E, solve each equation by substituting the x by 9.
A(9)
y= 1/2(2)^x
y= 1/2(2)^9
y= 1/2(512)
y=256
B(9)
y=10x+2
y= 10(9) +2
y= 90+2
y=92
The answer is that A(9) is greater.
Solve the compound inequality.
Answer:
Answer: b<4 or b>-2. hope it helps!
Pattie's Produce charges $2.29 for a package of strawberries. On average, Pattie's Produce sells 95 packages of strawberries daily. They estimate that for each 20-cent increase in the cost of a package of strawberries, 9 less packages will be sold each day. Let x represent the number of 20-cent increases in the cost of a package of strawberries.
Answer:
-1.8x² - 1.61x - 37.45 > 0
Step-by-step explanation:
Pattie's Produce charges $2.29 for a package of strawberries. On average, Pattie's Produce sells 95 packages of strawberries daily. They estimate that for each 20-cent increase in the cost of a package of strawberries, 9 less packages will be sold each day. Let x represent the number of 20-cent increases in the cost of a package of strawberries. Which inequality represents the values of x that would allow Pattie's Produce to have a daily revenue of at least $255 from selling the packages of strawberries?
Answer:
The cost of packaging 95 packages of strawberries is $2.29(95)=$217.55.
20-cent increase in the cost of a package of strawberries leads to 9 less packages to be sold. If x represent the number of 20-cent increases in the cost of a package of strawberries. the cost of packaging is:
Cost = (2.29 + 0.2x)(95 - 9x)
For a revenue of atleast $255:
(2.29 + 0.2x)(95 - 9x) > 255
217.55 - 20.61x + 19x - 1.8x² > 255
-1.8x² - 1.61x + 217.55 > 255
-1.8x² - 1.61x + 217.55 - 255 > 0
-1.8x² - 1.61x - 37.45 > 0
a) -20
b) -8
c) 8
d) 48
Answer:
b. -8
Step-by-step explanation:
Solution Given:
Equation is:
y=8-2x
if x=8
Substitute value of x in above equation
y=8-2*8
y=8-16
y=-7
Answer:
-8
Step-by-step explanation:
This question is asking us what y is equal to when x equals 8. To determine this, we can plug 8 into the equation for x and solve for y. So, let's do just that!
y = 8 - 2x [ Plug in 8 for x ]
y = 8 - 2(8) [ Simplify ]
y = 8 - 16 [ Solve ]
y = -8
So, when x=8, y=-8. Attached is an image of the function graphed that also shows that when x=8, y=-8.
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Ron bought a keychain for $7 and 3 t-shirts. He spent a total of $37. How much does each t-shirt cost?
show work
Answer:
$10
Step-by-step explanation:
Subtract the price of the keychain, $7, from the total to find the price of the 3 t-shirts:
$37 - $7 = $30
The 3 t-shirts cost a total of $30.
We assume all t-shirts have the same price.
price of 1 t-shirt = $30/3 = $10
Answer: $10
#2 Domain
{(-3,-4), (-1,2), (0, 0), (-3,5), (2, 4)}
Answer:
Domain : { - 3 , - 1 , 0 , 2 }