Answer:
t = -216
Step-by-step explanation:
-8 = t/27
Multiply both sides by 27
-216 = t
i probably did it wrong. please do a good explanation on how to find this out and answer my questions for brainliest thank you
Answer:
Step-by-step explanation:
As you can see from the value in the middle of the questions, the domain refers to all the possible x-values (input values) while the range refers to all the possible f(x) values (output values :: y-values). Therefore, for the domain, since the endpoints of the graph are closed circles it means that they are included so the domain would be ...
Domain: -9 ≤ x ≤ 7
The range would be the lowest and highest included y-value on the graph which in this case would be ...
Range: -6 ≤ f(x) ≤ 4
Rewrite 1/8x^3y + 7/8xy^2 using a common factor.
A. 1/4xy(4x^2 + 28y)
B. 1/4xy(x^2 + 7y)
C. 1/8x^3y^2(y + 7x)
D. 1/8xy(x^2 + 7y)
Answer:
D. 1/8xy(x^2 + 7y)
Step-by-step explanation:
You want to rewrite 1/8x^3y + 7/8xy^2 using a common factor.
FactorsThe two terms have factors that can be identified as ...
1/8x^3y = (1/8)(x)(x)(x)(y)7/8xy^2 = (7)(1/8)(x)(y)(y)The factors that appear in both terms are (1/8)(x)(y), so we can factor that out:
= 1/8xy(x^2 +7y) . . . . . matches choice D
In a quadratic equation a^2+ bx + c = 0, why is it that the value of a cannot be equal to zero?
Answer:
Someone please help me because i have this question on my test someone please help us
Step-by-step explanation:
A pizza restaurant recorded the numbers of toppings their customers requested on large pizzas. The results are shown in the frequency table. Number of Frequency toppings 1 2 2 5 3 4 1 Which dot plot correctly shows the data? Toppings on a Large Pizza O A. 1 2 3 Number of toppings
Option (D).
Given:
The objective is to select the correct plot correctly.
The frequency of number of toppings 1 is 2.
The frequency of number of toppings 2 is 5.
The frequency of number of toppings 3 is 4.
The frequency of number of toppings 4 is 1.
By comparing the given choices, the dot plots in options (D) matches with the given frequency values.
Hence, option (D) is the correct answer.
I need the answers and a explanation if possible
Wwe can reject the null hypothesis and deduce that there is sufficient empirical evidence to validate the presumption that seatbelts are competent for mitigating fatalities.
How to explain the hypothesisNull Hypothesis: There is no discernible distinction between the proportion of fatalities among occupants wearing seat belts and those without.
Alternative Hypothesis: The portion of fatalities experienced by those in vehicles donning seatbelts will be demonstrably lower in comparison to individuals not utilizing them.
The z-value was computed, finding that (0.0113 - 0.0024) / √(0.0047 * (1 - 0.0047) * (1/2915 + 1/7848)) = 12.43.
For a two-tailed test at a 0.05 significance level with 2915 plus 7848 less 2 = 10761 degrees of freedom, the critical value range would be ±1.96. With the calculated z-value of 12.43 surpassing the critical threshold, we can reject the null hypothesis.
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What is the constant of variation?
Answer:
constant (unchanged) ratio of two variable quantities.
Step-by-step explanation:
Constant of Variation. The constant of variation in a direct variation is the constant (unchanged) ratio of two variable quantities. The formula for direct variation is. y = k x (or y = k x ) where k is the constant of variation .
PLZZZZZZZZZZZZZZZZZZZZ HELPPPPPPPPPP MEEEEEEEEEE
Mariam makes $50 a week.
a) Show this relationship in a graph below. Try make graph or jus label the numbers
b) What is the unit rate of the line in the equation?
c) What is the connection between the unit rate and the amount of money Mariam makes per week?
d) Write the equation for this relationship.
e) Is this a proportional relationship? Justify your answer.
Answer:
b
Step-by-step explanation:
For any right triangle, the side lengths of the triangle can be put in the equation a^2+ b^2 = c^2 where a, b, and c are the side lengths. A triangle with the side lengths 3 inches, 4 inches, and 5 inches is a right triangle. Which way(s) can you substitute the values into the equation to make it true? Which variable has to match the longest side length? Why?
It is given that the side lengths of any right triangle can be put in the equation:
\(a^2+b^2=c^2\)For a triangle with the side lengths 3 inches, 4 inches, and 5 inches, it can be substituted in two ways that will make the equation true:
Let a=3, b=4, and c=5:
\(\begin{gathered} 3^2+4^2=5^2 \\ \Rightarrow9+16=25 \\ \Rightarrow25=25 \end{gathered}\)Hence, the equation is true.
You can also substitute a=4, b=3, and c=5.
This will also give the same result.
Notice that variable c has to match the longest side length.
The reason for this is that equality can only hold if the longest side is the variable at the right, if not there'll be an inequality instead.
(45 points)
7. Find the length of YU Round to the nearest hundredth.
8. Find STR.
Answer:
YU = 4.82. angle STR = 23°
Step-by-step explanation:
7) Angle between U and V = 72°, since angles on a straight line add up to 180°. so angle UV = 180 - 108 = 72°.
similarly, angle YU = 180 - 85 - 72 = 23°.
length of circumference of full circle = π X diameter = π (2r)
= 2πr (radius = half of diameter).
circumference = 2π(12) = 24π.
there are 360° in full circle.
remember that angle YU = 23°.
length YU = (23/360) X 24π
= (23π)/15
= 4.817
= 4.82 to nearest one hundredth.
8) triangle RST sits inside of half the circle, ie in the semicircle.
angle RST = 90° because the angle in a semicircle = 90°.
there are 180° in a full triangle.
since angle RST = 90°, angle STR must be less than 180 - 90.
angle STR < 90°. so STR must be 23°.
A circle has a diameter of 41 centimeters. Which equation can be used to find the radius of this circle?
Answer:
Equation to find radius = Diameter divided by 2
Area is 1319.585
Step-by-step explanation:
Diameter = 41 cm
Radius = 41÷2 = 20.5cm
Area = πr^2
Area = 3.14×(20.5)^2
Area = 3.14×420.25
Area = 1319.585cm^2
PLEASE Help I don’t understand!!! Create a system of two equations with the solution (2,7)
Answer:
x+y=9
x+2y=16
Step-by-step explanation:
x=2, y=7
2+7=9
so that be the first equation; x+y=9
2 + 2(7)= 16
so that would be the second equation; x + 2y = 16
A Fibonacci-type sequence that has been studied by mathematicians is the Lucas sequence, named after a French mathematician of the nineteenth century. The first ten terms of the Lucas sequence are 1, 3,
4,7, 11, 18, 29, 47, 76,123 what
is the
term of the Lucas
The eleventh term of the Lucas sequence is?
The eleventh term of the Lucas' sequence is 199
How to determine the eleventh term of the sequence?From the question, we have the following parameters that can be used in our computation:
1, 3, 4,7, 11, 18, 29, 47, 76,123
As a general rule of Fibonacci, the current term of a sequence is the sum of the two previous terms
This means that
11th term = 10th term + 9th term
Substitute the known values in the above equation, so, we have the following representation
11th term = 123 + 76
Evaluate the sum
11th term = 199
Hence, the 11th term is 199
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A snack is 5 parts peanuts and 2 parts raisins. How many pounds of peanuts should be mixed with one-half pound raisins
Brooklyn is going to invest in an account paying an interest rate of 3.5% compounded continuously. How much would Brooklyn need to invest, to the nearest ten dollars, for the value of the account to reach $64o in 9 years?
Brooklyn needs to invest $432.43, rounded to the nearest ten dollars.
To determine how much Brooklyn needs to invest in an account that pays a continuously compounded interest rate, we can use the formula:
A = \(Pe^(^r^t^)\)
where A is the future value of the account, P is the principal investment, e is the mathematical constant approximately equal to 2.71828, r is the interest rate, and t is the time in years.
In this case, we want the future value of the account to be $640, the interest rate is 3.5% (or 0.035 as a decimal), and the time is 9 years. We can substitute these values into the formula and solve for P:
640 = \(Pe^(^0^.^0^3^5^*^9^)\)
640 = Pe^0.315
P =\(640/e^0^.^3^1^5\)
P = 432.43
Therefore, to have a future value of $640 in 9 years with a continuously compounded interest rate of 3.5%.
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A piece of rope falls out of a hot air
balloon from a height of 5,184 ft. If the
equation for height as a function of time
is h(t) = -16t2 - initial height where t is
time in seconds and h(t) is height in feet,
how many seconds will it take for the
piece of rope to hit the ground?
==========================================
Explanation:
The equation should be h(t) = -16t^2 + (initial height). If you subtract off the initial height, then you'll have a negative starting height, which is not correct. Try plugging t = 0 into h(t) = -16t^2 - (initial height) and you'll see what I mean.
The initial height is 5184. We want to find the t value when h(t) = 0. So we want to find the time value when the height is 0.
--------------
h(t) = -16t^2 + (initial height)
h(t) = -16t^2 + 5184
0 = -16t^2 + 5184
16t^2 = 5184
t^2 = 5184/16
t^2 = 324
t = sqrt(324)
t = 18
It takes 18 seconds for the rope to hit the ground.
Find the slope (4, -1) and (-2, 3)
Chloe is making brownies that call for 4 large eggs to make 16 brownies. How many eggs will she need if she wants to make 40 brownies but keep the same great recipe flavor ?
Answer: 10 eggs
Step-by-step explanation:
you need to divide 40 by 16 then you multiply that by 4 and you get 10.
What are the domain and range of function p within the context of Melissa’s garden?
Drag the values to the correct locations on the image. Each value can be used more than once, but not all values will be used.
When a function is plotted, the domain and the range of the function are the x-coordinate and the y-coordinate respectively. The domain and range of the assumed function for Melissa's garden are: \(x = (2,\infty]\) and \(p(x) = (0,\infty]\), respectively.
The function for Melissa's garden is not given. So, I will give a general explanation to calculate domain and range.
The domain is all possible values the independent variables of a function can take while the range is all possible values the dependent variables of a function can take
Assume the function of Melissa's garden is:
\(p(x) = x(x - 2)\)
Start by equating the function to 0
\(x(x - 2) = 0\)
Split
\(x = 0\ or\ x - 2 = 0\)
Solve
\(x = 0\ or\ x = 2\)
The above values of x will give \(p(x) = 0\)
Because it is a garden, the length of the garden cannot be 0 or less.
So, the domain of the function is:
\(x = (2,\infty]\)
This means that the domain starts from a value greater than 2 (e.g. 3) and ends at infinity
To calculate the range, we substitute \(x = (2,\infty]\) in the function
\(x = 2\) means
\(p(2) = 2 \times ( 2- 2) = 0\)
\(x = \infty\) means
\(p(2) = \infty \times (\infty- 2) = \infty\)
So, the range of the function is:
\(p(x) = (0,\infty]\)
This means that the domain starts from a value greater than 0 (e.g. 1) and ends at infinity
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Answer:
The range is 0, infinity and the domain is 0,12
Step-by-step explanation:
=
Divide.
O EXPONENTS AND POLYNOMIALS
Dividing a polynomial by a monomial: Multivariate
(12y'u²-32ysu+15y¹uº) ÷ (-4y²u³)
Simplify your answer as much as possible.
0
X
010
Ś
The simplified expression when a polynomial is divided by a monomial is \(y^3 / u^3 (8u^4 - 3y^2u^4 - 3y^2).\)
What is factoring?A polynomial expression can be represented as a product of other, smaller polynomial expressions through the algebraic process of factoring. The process of factoring can be used to simplify expressions and solve problems. A polynomial equation's roots can be found by factoring, as can the common factors in an expression that can be eliminated. Factoring occasionally enables us to spot trends and connections between several expressions.
Depending on the kind of polynomial and the degree of the terms involved, there are several ways to factor. S
For the given expression \((12y^7u^2-32y^5u^6+15y^7u^6) / (-4y^2u^5)\) factor the common term.
\((12y^7u^2-32y^5u^6+15y^7u^6) / (-4y^2u^5)\\-4y^5u^2(3y^2 - 8u^4 - 3y^2u^4) / (-4y^2u^5)\)
Cancelling the -4:
\(= y^3 / u^3 (8u^4 - 3y^2u^4 - 3y^2)\)
Hence, the simplified expression is \(y^3 / u^3 (8u^4 - 3y^2u^4 - 3y^2).\)
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A right rectangular prison is shown with some measurements given in units. The length of the diagonal from point A to point B is 13 units. What is the height, h, of the prison in units?
The required value of h, representing the height of the three-dimensional rectangle, is 12.
The diagonal of a three-dimensional rectangle is defined by the equation d² = x² + y² + h². To solve for h, we can rearrange the equation as follows:
h² = d² - x² - y²
Given the values d = 13, x = 3, and y = 4, we can substitute them into the equation:
h² = 13² - 3² - 4²
h² = 169 - 9 - 16
h² = 144
Taking the square root of both sides, we find:
h = 12
Therefore, the value of h, representing the height of the three-dimensional rectangle, is 12.
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Please help!!!!!!!!!
10+6+9+13+7= 45
and divide it by 5
the answer is 9
the answer is 2.74, this is easy to figure out if you want to you can look up a claculator for it
Company XYZ has created a neutral (useless) product to help college students make it to class on time. The company runs 40
studies with a confidence level of 95% Even if the product is useless, it would on average produce one study showing the
predict was beneficial, one study showing it was harmfut and thirty eight inconclusive studies (38 is 95% of 40) XYZ then
uses the one beneficial study to promote their new product.
Identity the misuse of statistical data by Company XYZ.
Loaded questions
Data manipulation
Overgeneralization
D
Discarding untavorable data
Ki
Answer: Discarding unfavorable data
Step-by-step explanation:
When companies discard data that will not support the narrative that they are trying to push, this is rightfully called, Discarding Unfavorable Data. There is a higher likelihood of this happening when the company does not publish all of the data the research showed.
Tobacco companies are an example of companies that do this. In cases where they hope to show that the relationship between cancer and tobacco smoking is minimal, they would show the very few examples that supports this.
The snack table had 48 cookies displayed. After the first round of students came by, the number decreased by 25%. How many cookies were left on the table?
Answer:
36 cookies left
Step-by-step explanation:
48×.25=12
48-12=36 cookies
The sum of two numbers is −45. One number is 9 more than the other. Find the numbers
Answer:
-18 and -27 ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ
here is a tree dagan shouting the sample sue for independent events. How many otcomes are there for the first event
8
2
1
4
Answer:
2 events
Step-by-step explanation:
There are four options. If 1 is selected, then we have two outcomes of the event. This means that there are two outcomes for the first event.
Hope this helps. Have a nice day.
6. Kelly buys a magazine for $30 after it was marked up 20%. What is the
original price of the magazine?
7. A parrot is sold for 40% off the original price. If the sale price of the
parrot was $54, what was its original price?
8. There is a markup of 40% on the original price of a fan. If the fan was
sold for $28, what was its original price?
9. Jack had a 10%-off coupon and paid $45 for pair of jeans. What was the
original price of the pair of jeans?
10. What is the principal, if a person paid an amount of $1325 after 1 year at
6% rate of interest per annum?
Can you be a little more specific?
Someone please help
Answer:
100
Step-by-step explanation:
360 is the total degree for every quadrilateral. 80+75+105=260. 360-260=100.
The annual profits for a company are given in the following table, where x represents the number of years since 2012, and y represents the profit in thousands of dollars. Write the linear regression equation that represents this set of data, rounding all coefficients to the nearest tenth. Using this equation, find the projected profit (in thousands of dollars) for 2022, rounded to the nearest thousand dollars.
The linear regression equation is y = 22.6x + 52.33
The profit would reach 234 thousand dollars during the calendar year of 2020.
How to calculate the valueReplacing the means, the intercept a is given by:
108.8 = 22.6(2.5) + a.
a = 108.8 - 22.6(2.5)
a = 52.33
Therefore, the linear regression equation is y = 22.6x + 52.33
The profit would reach 234 thousand dollars during the calendar year of 2020.
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Answer:
Step-by-step explanation:
Can someone help me pleace
Answer:
A
Step-by-step explanation:
ABC is similar to DEF because similar triangles are triangles that have the same shape, but their sizes may vary.
Which graph shows f(x) = |x| reflected across the x-axis, translated 2 units down and 1 unit to the left?
Answer:
First question is B
Second question is also B :)
Step-by-step explanation:
If the function is translated 2 units down and 1 unit to the left. Then the function will be f(x) = |x + 1| - 2
What is a function?The function is an expression, rule, or law that defines the relationship between one variable to another variable. Functions are ubiquitous in mathematics and are essential for formulating physical relationships.
The function is f(x) = |x|.
If the function is translated 2 units down and 1 unit to the left. Then the function will be
f(x) = |x + 1| - 2
The graph is shown below.
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