Simplify | 2.35 – 4.89 | + | 8.39 – 3.72 |.
Answers
Answer:
2.13
Step-by-step explanation:
Step-by-step explanation:
\(| 2.35 – 4.89 | + | 8.39 – 3.72 |\\\\|-2.54|+|4.67|\\\\2.54+4.67\\\\\boxed{\underline{7.21}}\)
Related Questions
2 apples cost 2 dabloons.
How much does 1 apple cost
Answers
Which is greater.
3.65 x 10-8 or 3.65 x 10-7
Answers
Answer:
3.65 x 10-7
Step-by-step explanation:
The equation 9(u – 2) 1. 5u = 8. 25 models the total miles Michael traveled one afternoon while sledding, where u equals the number of hours walking up a hill and (u – 2) equals the number of hours sledding down the hill. Which is the value of u?.
Answers
The value of "u" is approximately 2.5. isolate the variable term by adding 18 to both sides 26.25.
To find the value of "u" in the equation 9(u - 2) + 1.5u = 8.25, we can solve for "u" by simplifying and solving the equation.
Let's simplify the equation step by step:
9(u - 2) + 1.5u = 8.25
Start by distributing 9 to the terms inside the parentheses:
9u - 18 + 1.5u = 8.25
Combine like terms:
10.5u - 18 = 8.25
Next, isolate the variable term by adding 18 to both sides:
10.5u = 8.25 + 18
10.5u = 26.25
To solve for "u", divide both sides of the equation by 10.5:
u = 26.25 / 10.5
u ≈ 2.5
Therefore, the value of "u" is approximately 2.5.
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Drag the tiles to thDrag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
Match the slopes and the y-intercepts to the lines of best fit on the scatter plots.
The rate of change is ,
and the initial value is .
The rate of change is ,
and the initial value is .
The rate of change is ,
and the initial value is .
The rate of change is ,
and the initial value is .
The rate of change is ,
and the initial value is .
Graph shows line and 7 points plotted on a coordinate plane. Line goes through (0, 3) and (5, 6). Points are approximately at (1, 3.8), (2, 4), (3, 4.5), (4, 5.5), (5, 6.1), (6, 6.1), and (7, 7).
arrowRight
Graph shows downward right slant line and 7 closed points plotted on a coordinate plane. The line from (0, 5) till (8, 0.2). Points are approximately at (1, 4.8), (2, 4), (3, 2.9), (4, 2.8), (5, 1.9), (6, 1.2), and (7, 1).
arrowRight
Graph shows line and 4 points plotted on a coordinate plane. Line goes through (0, 5) and (3, 10). Points are approximately at (1, 6.5), (1.9, 8.5), (3.1, 9.8), and (4, 12).
arrowRight
Graph shows line and 5 points plotted on a coordinate plane. Line goes through (0, 5) and (3, 0). Points are approximately at (0.8, 4), (1, 3.1), (1.6, 2.6), (1.9, 1.4), and (2.8, 0.8).
arrowRight
e correct boxes to complete the pairs. Not all tiles will be used.
Match each equation with its y-intercept.
Answers
The rate of change (slopes) and initial value (y-intercepts) are as follows:
The initial value is 20, and the rate of change is -5.The initial value is 20, and the rate of change is 4.The initial value is 15, and the rate of change is -3. The initial value is 15, and the rate of change is 5.What is a scatter plot?A scatter plot can be defined as a type of graph which is used for the graphical representation of the values of two variables, with the resulting points showing any association (correlation) between the data set.
What is a line of best fit?A line of best fit is also referred to as a trend line and it can be defined as a statistical (analytical) tool that is used in conjunction with a scatter plot, in order to determine whether or not there's any association (correlation) between a data.
By critically observing the graph which models the given data, we can logically deduce the following rate of change (slopes) and initial value (y-intercepts):
The initial value is 20, and the rate of change is -5.The initial value is 20, and the rate of change is 4.The initial value is 15, and the rate of change is -3. The initial value is 15, and the rate of change is 5.Read more on scatterplot here: brainly.com/question/6592115
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find the curve in the xy-plane that passes through the point (4,5) and whose slope at each point is 3sqrt(x)
Answers
The curve that passes through (4, 5) and has a slope of 3√x at each point is given by y = (\(2x^{3/2}\) + 5 - 2\((4)^{3/2}\)
To find the curve that passes through (4, 5) and has a slope of 3√x at each point, we can integrate the derivative of y with respect to x, which gives us the original function y(x):
\(\frac{dy}{dx}\) = 3√x
Integrating both sides with respect to x, we get:
y = (\(2x^{3/2}\)) + C
where C is a constant of integration.
We can use the point (4, 5) to solve for C:
5 = 2\((4)^{3/2}\) + C
C = 5 - 2\((4)^{3/2}\)
Substituting this value of C, we get the final equation for the curve:
y = (\(2x^{3/2}\)) + 5 - 2\((4)^{3/2}\)
Therefore, The curve that passes through (4, 5) and has a slope of 3√x at each point is given by y = (\(2x^{3/2}\) + 5 - 2\((4)^{3/2}\)
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Abdurrahman wants to go to the movies ($11.00) and get popcorn ($4.50) and a coke ($2.95). He asks for at most $20.00. His dad gives him $18.00.
T/F Abdurrahman got what he asked for.
Select one:
True
False
Answers
Answer:
True
Step-by-step explanation:
1) Add up the cost of all items.
11+4.50+2.95=18.45
2) Compare with 18.
18.45>18
Therefore, Abdurrahman got what he asked for.
How do you interpret a p-value in the context of a word problem? Please provide a few examples!
Answers
Interpreting a p-value in the context of a word problem involves understanding its significance and its relationship to the hypothesis being tested.
The p-value represents the probability of obtaining the observed data (or more extreme) if the null hypothesis is true.
Here are a few examples of interpreting p-values in different scenarios:
1. Hypothesis Testing Example:
Suppose you are conducting a study to test whether a new drug is effective in reducing blood pressure.
The null hypothesis (H0) states that the drug has no effect, while the alternative hypothesis (Ha) states that the drug does have an effect.
After conducting the study, you calculate a p-value of 0.02.
Interpretation: The p-value of 0.02 indicates that if the null hypothesis (no effect) is true, there is a 2% chance of observing the data (or more extreme) that you obtained.
Since this p-value is below the conventional significance level of 0.05, you would reject the null hypothesis and conclude that there is evidence to support the effectiveness of the drug in reducing blood pressure.
2. Acceptance Region Example:
Consider a manufacturing process that produces light bulbs, and the company claims that the defect rate is less than 5%.
To test this claim, a sample of 200 light bulbs is taken, and 14 of them are found to be defective.
The hypothesis test yields a p-value of 0.12.
Interpretation: The p-value of 0.12 indicates that if the true defect rate is less than 5%, there is a 12% chance of obtaining a sample with 14 or more defective light bulbs.
Since this p-value is greater than the significance level of 0.05, you would fail to reject the null hypothesis.
There is not enough evidence to conclude that the defect rate is different from the claimed value of less than 5%.
3. Correlation Example:
Suppose you are analyzing the relationship between study time and exam scores.
You calculate the correlation coefficient and obtain a p-value of 0.001.
Interpretation: The p-value of 0.001 indicates that if there is truly no correlation between study time and exam scores in the population, there is only a 0.1% chance of obtaining a sample with the observed correlation coefficient.
This p-value is very low, suggesting strong evidence of a significant correlation between study time and exam scores.
In all these examples, the p-value is used to assess the strength of evidence against the null hypothesis.
It helps determine whether the observed data supports or contradicts the hypothesis being tested.
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Consider the following function.
f(x) = 2x^3 + 3x^2 − 36x
(a) Find the critical numbers of f. (Enter your answers as a comma-separated list.)
x =
Answers
For f(x) = 2x^3 + 3x^2 - 36x, the critical numbers of function f is x = -3, 2.
To find the critical numbers of the function follow these steps:The function provided in the question is f(x) = 2x^3 + 3x^2 - 36x. Hence,
1. Find the first derivative of f(x), f'(x).
2. Set f'(x) equal to 0 and solve for x.
Step 1: Find the first derivative of f(x), f'(x).
f'(x) = d(2x^3 + 3x^2 - 36x)/dx
f'(x) = 6x^2 + 6x - 36
Step 2: Set f'(x) equal to 0 and solve for x.
6x^2 + 6x - 36 = 0
To solve for x, first, factor out the common factor of 6:
6(x^2 + x - 6) = 0
Now, factor the quadratic equation:
(x + 3)(x - 2) = 0
The critical numbers of f are x = -3 and x = 2. So, the comma-separated list of critical numbers is: x = -3, 2
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The two line plots below show the times that Marco and Antonio ran in ten trials of the 40-yard dash.
antonio's:4.5,4.5,4.6,4.6,4.6,4.8,4.8,5.2,5.2,5.3,5.5
Marcos's:4.8,4.8,4.9,4.9,4.9,4.9,5.0,5.0,5.0,5.1
Which of the following can be inferred from the data?
A. Antonio runs the race faster than Marco on average.
B. Marco always runs a better time than Antonio.
C. Marco is more likely than Antonio to improve after a poor race.
D. Antonio's average time is about 5.1 seconds,
Answers
Step-by-step explanation:
The answer is A
Bcz In a race runs faster whoever does it in less time
Use the diagram to the right to complete the statement. If m
m
Answers
What is the slope of the line shown.
Answers
Answer:
The answer is negative one half. If I am wrong let me know because the picture is a little hard to read.
Step-by-step explanation: To find the slope, you look at the Y axis and see where the line crosses perfectly(or goes through) the Y axis first. Then, you look at the x axis and see where the line crosses perfectly on the x axis. For example, the line crosses the Y axis at negative, and the line crosses the X axis at positive 2. The vertical line is the y axis and the horizontal line is the x axis.
I need help with this demon!
Answers
The percentage of of the shaded region is 74.8%
What is area of a circle?A circle is simply a round shape that has no corners or line segments. It is a closed curve shape in geometry. The enclosed body of a circle is called the circumference.
The space enclosed by the boundary of a plane figure is called its area. The area of a figure is the number of unit squares that cover the surface of a closed figure. Area is measured in squared units.
The area of a circle is expressed as :
πr²
The area of the shaded part = area of big circle - area of small circle
= 3.14(8.01²-4.02²)
= 3.14(64.16-16.16)
= 3.14( 48)
= 150.72in²
area of the big circle = 3.14 × 64.16 = 201.46
therefore the percentage of the shaded region of the point = 150.72/201.46 × 100
= 74.8% ( nearest tenth)
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15 POINTS!!!!!!! PLEASE HELP!!
Find the value of a.
A) 3
B) 4
C) 6
D) 9
Answers
Answer:
Step-by-step explanation:
The legs and hypotnuse of a triangle can easily be solved by using
\(A^{2} +B^{2} =C^{2}\)
with this in mind we can plug in the legs and hypotenuse of the triangle to solve for the missing leg, A.
\(A^{2} =C^{2} -B^{2} \\A = \sqrt{(5^{2} )-(4^{2}) } \\A=\sqrt{9} \\A=3\)
Hope this helps,
H.M.
Answer:
The correct answer is a.) 3.
Step-by-step explanation:
Since we know that b = 4, and c = 5, we can use the pythagoras theorem to solve this question. a^2 + b^2 = c^2.
Substitute the values a^2 + 4^2 = 5^2.
Simplify: a^2 + 16 = 25.
Subtract 16 on both sides: a^2 = 9.
Square root each side to get a = 3.
3x*2 -10x +7/ x +4 which of the following shows the division problem in synthetic division form?
Answers
We can write the given expression (3x² - 10x + 7/ x + 4) in synthetic form as :
- 4 |3 -10 7
What is Synthetic Division?In algebra, the synthetic division is one of the methods used to manually perform the Euclidean division of polynomials. The division of polynomials can also be done using the long division method. But, in comparison to the long division method of polynomials, the synthetic division requires lesser writing and fewer calculations. That means the synthetic division is the shorter method of the traditional long-division of a polynomial for the special cases when dividing by a linear factor.Given is the expression as -
(3x² - 10x + 7/ x + 4)
We can write the given expression in synthetic form as -
- 4 |3 -10 7
Therefore, we can write the given expression (3x² - 10x + 7/ x + 4) in synthetic form as :
- 4 |3 -10 7
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Look at the picture please
Answers
The minimum value is 20
The maximum value is 9
The range is 11.
The mean is 16.8
The median is 18.
The mode is 18.
The landmark that best describes the dot plot is the mean because it incorporates all the data in the dotplot.
What are the measures of the data in the dotplot ?A dot plot is a graph that displays the information of a dataset. A dot plot consists of a number line and dots above the numbers on the number line. The dots in the dot plot is indicate the frequency of the data in the dataset.
The minimum value is the smallest number in the dataset. The smallest number that is represented in the dot plot is 9. The maximum value is the largest number in the dataset. The largest number that is represented in the dot plot is 20.
The range is the difference between the maximum value and the minimum value.
Range = maximum value - minimum value
20 - 9 = 11
The mean is the average of he numbers in the dataset.
Mean = [(9 x 1) + (12 x 1) + (14 x 1) + (15 x 5) + (16 x 2) + (17 x 3) + (18 x 6) + (19 x 3) + (20 x 4)] / 26
438 /26 = 16.8
The mode is the number that occurs most in the dataset. The number that occurs most frequently is 18 with a dot of 6.
The median is the number at the center of the dataset. The median is 18.
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100 points & brainliest!
Answers
Answer:
Y=#x+Y
Step-by-step explanation:
I think this formula would be best to use as one of the numbers would keep on changing while the other stays the same.
Enjoy, Hope i get what i promised :D
Answer:
Y=#x+Y
Step-by-step explanation:
Find the product z1z2 in standard form. (Simplify your answer completely.)
z1 = 9 + 3i, z2 = −9 + 3i
Answers
Answer:
See image
Step-by-step explanation:
These are "complex numbers" because they have the imaginary number, i, in the expression.
The 9 (and the -9) is the real part and the 3i is the imaginary part. But when you add or subtract, multiply or divide them you can manipulate them just as if the i was a variable (like x or n or y) If you learned to multiply
(x+2)(x+5)
= x^2 + 7x + 10
This problem will work the same way. You may have learned "FOIL" or using a box to multiply two binomials (two-piece things like x+2)
**SUPER IMPORTANT NOTE: i^2 is equal to -1
These particular complex numbers are called conjugates which means they have the same 'pieces' the 9 and the 3i, with only one sign different. So there is a short cut for this problem and the imaginary number falls out and we get a real number answer. This doesn't happen for every question, only when you multiply conjugates, but the method shown here works for multiplying complex numbers all the time.
Someone help me with this please thank you
Answers
Answer:
negative
Step-by-step explanation:
you can even try it out yourself,
I need a minimum of 50 characters to submit so...
Which statement is modeled by the expression? 100p Responses The coach received 100 tokens for the amusement park rides. If there are p players on the team, each player will receive 100p tokens. The coach received 100 tokens for the amusement park rides. If there are , p, players on the team, each player will receive , 100 over p, , tokens. After the league had supplied each player with a uniform, there were 100 uniforms left over. If there are p players in the league, 100p is the number of uniforms the league had originally. After the league had supplied each player with a uniform, there were 100 uniforms left over. If there are , p, players in the league, , 100 over p, is the number of uniforms the league had originally. One hundred more players signed up for soccer than the league had planned for. The league had p uniforms in stock. The number of uniforms the league needs to buy to make up the difference is 100p. One hundred more players signed up for soccer than the league had planned for. The league had p uniforms in stock. The number of uniforms the league needs to buy to make up the difference is 100 over p ., Each player in the league was given 100 tickets to sell. If there are p players in the league, the total number of tickets to sell is 100p Each player in the league was given 100 tickets to sell. If there are , p, players in the league, the total number of tickets to sell is , 100 over p
Answers
"100p" is: "If there are p players on the team, each player will receive 100p tokens." Have a good day
Jaquan surprised his mom by taking her out for Mother's Day. Hetook her to her favorite restaurant. The total bill came to $112.49.Jaquan gave a 23% tip towards the bill. What is the total restaurantbill including the tip amount?
Answers
Explanation
to know the total bill amount we need to add the tip to the total,so
Step 1
find the value of the tip
\(\text{tip}=23\text{ percent = }\frac{23}{100}=0.23\)it means to find the tip amount you need multiply the bill by 0.23,hence
\(\begin{gathered} \text{Tip}=112.49\cdot0.23=25.8727 \\ \text{tip amount}=25.8727 \end{gathered}\)Step 2
finally , add the values to know the total restaurant bill including the tip amount
\(\begin{gathered} \text{Total bill= bill+tip} \\ \text{Totall bill= \$ 112.49 +\$25.8727} \\ \text{Totall bill= \$ }138.3627 \end{gathered}\)So, the answer is $138.3627.
I hope this helps you
Find the flux of the vector field F across the surface S in the indicated direction. F - 2x1 +291 +2k Sis portion of the plane x+y+z=7 for which 0 Sxs 2 and 0 sy sl; direction is outward (away from origin) O 11 34 17 O 10
Answers
The answer is, the flux of the vector field F across the surface S in the indicated direction is (20 + 2√3). hence , option O is the correct answer.
The surface integral of the vector field F across the surface S in the outward direction (away from origin) is shown below:-
Flux = ∬S F · dS
Here, F = <2x, 1 + 2y, 9> and S is a portion of the plane x + y + z = 7, 0 ≤ x ≤ 2, and 0 ≤ y ≤ 1.
The surface element is dS = <-∂x/∂u, -∂y/∂u, 1> du dv where u is the first coordinate and v is the second coordinate. Then, ∂x/∂u = 1, ∂y/∂u = 0.
Therefore, dS = <-1, 0, 1> du dv.
Since we want the outward direction, the unit normal vector to S pointing outward is given by
n = <-∂x/∂u, -∂y/∂u, 1>/|<-∂x/∂u, -∂y/∂u, 1>|= <1/√(3), 1/√(3), 1/√(3)>.
Thus, F · n = <2x, 1 + 2y, 9> · <1/√(3), 1/√(3), 1/√(3)>
= (2x + 1 + 2y + 9)/√(3)
= (2x + 2y + 10)/√(3)
Therefore, Flux = ∬S F · dS = ∬R (2x + 2y + 10)/√(3) du dv where R is the rectangle in the uv-plane with vertices (0, 0), (2, 0), (2, 1), and (0, 1).
Thus ,∬S F · dS=∫0¹∫0²(2x+2y+10)/(3)dx
dy= (2√3 + 20)/√3
= (20 + 2√3)
The flux of the vector field F across the surface S in the indicated direction is (20 + 2√3).
Therefore, option O is the correct answer.
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During a winter storm, a ski resort received 9 inches of snow in 12 hours. The snow fell at a steady rate. How many inches of snow fell at each hour.
Answers
Answer:
0.75 inches of snow
Step-by-step explanation:
During a winter storm, a ski resort received 9 inches of snow in 12 hours. The snow fell at a steady rate. How many inches of snow fell at each hour.
12 hours = 9 inches of snow
1 hour = x
Cross Multiply
12 hours × x = 1 hour × 9 inches
x = 9/12
x = 0.75 inches
Therefore, 0.75 inches of snow fell at each hour.
Help please...
show work if you can
Thank you!!!
Answers
make y the subject of the equation
2A=x(2y+z)
Answers
2A = 2xy + xz
2A - xz = 2xy + xz - xz
2A - xz = 2xy
( 2A - xz ) ÷ 2x = 2xy ÷ 2x
A/x - z/2 = y
Hi there!
»»————- ★ ————-««
I believe your answer is:
\(y = \frac{2A-xz}{2x}; x \neq 0\)
»»————- ★ ————-««
Here’s why:
⸻⸻⸻⸻
\(2A = x(2y+z)\\\\\rightarrow x(2y+z)=2A\\\\\rightarrow\frac{x(2y+z)=2A}{x}\\\\\rightarrow 2y + z = \frac{2A}{x}\\\\\rightarrow 2y + z - z = \frac{2A}{x}-z\\\\\rightarrow 2y = \frac{2A}{x} - z\\\\\rightarrow\frac{2y = \frac{2A}{x} - z}{2}\\\\\rightarrow \boxed{y = \frac{2A-xz}{2x}}\)
⸻⸻⸻⸻
»»————- ★ ————-««
Hope this helps you. I apologize if it’s incorrect.
What is the value of X
Answers
Answer:
20 degrees
Step-by-step explanation:
Y is 90 degrees.
lets find the measure of the other angle, 180-110 is 70.
using this info let’s find X.
180-(70+90)
180-160
20
97 divided by 10 and round to the nearest tenth place pleaseeeee
Answers
Answer: 9.7
Step-by-step explanation: 97 divided by 10 is 9.7
The conversation society bought and planted 45 cherry trees. Each tree cost $367. What was the total cost of the planting trees?
Answers
Answer:
$16,515
Step-by-step explanation:
If one tree cost $367 that would mean if you got 45 of them you would have to do 45 x $367 which is $16,515
367
45
x___
1835
14680
---------------
16,515
please helpp quick! i have no idea what the answer is
Answers
Answer:
C
Step-by-step explanation:
point-slope equation is y-y1=m(x-x1)
y1=2
x1=6
m=(-5/7)
so the equation is y-2=-5/7(x-6)
hope this helps :3
Answer the question below in the picture.
Answers
Answer:
39 ft²
Step-by-step explanation:
Surface area of square pyramid:
Surface area of square pyramid = lateral surface area+ base area
s = 3 ft
l = 5 ft
\(\sf \boxed{\text {\bf Surface area of square pyramid = $2sl +s^2$ }}\)
s - side of the base square
l- slant height
Surface area = 2*3*5 + 3*3
= 30 + 9
= 39 ft²
if f (x)= x2- 2x : which of the following is the value of f (4)