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2 years ago

15h=465 :) help me please

Mathematics

1 answer:

drek231 [11]2 years ago

8 0

H=31.
to solve for h, you just divide both sides by 15

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Mary had 129 apples. Tom had 127 more apples than Tom. How many more apples did Linda have than Mary?

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Answer:

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Step-by-step explanation:

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3 years ago

Answer the questions below about the quadratic function.f(x) = -2x² - 4x

Juli2301 [7.4K]

We are given the function below;

$f(x)=-2x^2-4x$

PART A

We then proceed to find if the function has a minimum or maximum value. To find if the function has a minimum or maximum value. If the x^2 coefficient is positive, the function has a minimum. If it is negative, the function has a maximum.

ANSWER: From the above, we can see that x^2 is negative, hence the function has a maximum

PART B and C

To find the minimum or maximum value, we would plot the graph of the f(x). The graph can be seen below.

From the graph, the black point helps answer part A and part B.

ANSWER: The function's maximum value is f(x)=2.

This is the point where the slope of the graph is equal to zero

ANSWER: The maximum value then occurs at x= -1

We can also solve this by differentiating the function.

$\begin{gathered} f(x)=-2x^2-4x \\ f^{\prime}(x)=-4x-4 \\ At\xi maxmum\text{ }f^{\prime}(x)=0 \\ -4x-4=0 \\ -4x=4 \\ x=-\frac{4}{4} \\ x=-1 \\ \therefore\text{The max}imum\text{ value occurs at x=-1} \\ \text{Inserting the value of x into the function, we have} \\ f(x)=-2(-1)^2-4(-1) \\ f(x)=-2+4 \\ f(x)=2 \\ \therefore\text{The function max}imum\text{ value is 2} \end{gathered}$

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1 year ago

I need help, the question is “What is the slope, m, and y-intercept for the line that is plotted on the grid below?”

vlabodo [156]

Answer:

m = 2, (0,4)

Step-by-step explanation:

Slope is 2

Y intercept is 0,4

3 0

3 years ago

What is 24.40% 37.60% 7/25 and 3/10 ordered from least to greatest

Kobotan [32]

Answer:

7/25,3/10, 24.40%,37.60%

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3 years ago

Read 2 more answers

What are the zeros of the polynomial function? <br><br> F(x)= x^2 + 12x +20

vampirchik [111]

Answer:

Step-by-step explanation:

$F(x)=x^2+12x+20\\\\\text{The zeros:}\\\\F(x)=0\iff x^2+12x+20=0\\\\x^2+2x+10x+20=0\\\\x(x+2)+10(x+2)=0\\\\(x+2)(x+10)=0\iff x+2=0\ \vee\ x+10=0\\\\x+2=0\qquad\text{subtract 2 from both sides}\\\boxed{x=-2}\\\\x+10=0\qquad\text{subtract 10 from both sides}\\\boxed{x=-10}$

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3 years ago