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3 years ago

8

Which of the following statements is not true?

1 answer:

Yuki888 [10]3 years ago

4 0

I'm positive its D but I'm for sure it is not B

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Find the slope of the tangent line to the graph of f at the given point. f(x) = x√ at (36,6) 1/3 1/12 3 12

Alik [6]

slope = $\frac{1}{12}$

the slope is the value of f' (36)

f(x) = √x = $x^{\frac{1}{2} }$

f'(x) = $\frac{1}{2}$ $x^{-\frac{1}{2} }$ = $\frac{1}{2\sqrt{x} }$

f'(36) = $\frac{1}{2(6)}$ = $\frac{1}{12}$

5 0

4 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=%20%7B7%7D%5E%7B2n%20%2B%201%7D%20%20%5Cdiv%2049%20%3D%20%20%7B7%7D%5E%7B3%7D%20" id="TexFormu

kondaur [170]

Step-by-step explanation:

${7}^{2n + 1} \div 49 = {7}^{3}$

${7}^{2n + 1} \div {7}^{2} = {7}^{3}$

<h3> ${7}^{2n + 1 - 2}= {7}^{3}$ </h3><h3>2n-1=3</h3><h3>2n=4</h3><h3>n=2</h3>

6 0

3 years ago

_____ lateral faces of a rectangular pyramid are congruent.<br> All of the<br> Opposite<br> Adjacent

Juli2301 [7.4K]

Opposite lateral faces of a rectangular pyramid are congruent.

I think is OPPOSITE .

7 0

3 years ago

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there were 3 apple 1 mixed fruit 2 grape and 4 tropical fruit juice boxes in the cooler at the picnic what is the probability th

JulsSmile [24]

Total juice boxes = 3 + 1 + 2 + 4 = 10

probability first one out is grape = 2 / 10
probablility second one out is grape 1 / 9 (one taken already and only nine left)

total probability = 2 / 10 x 1 / 9 = 2 / 90 = 1 / 45

4 0

3 years ago

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a farmer is planning a rectangular area for her chickens. the area of the rectangle will be 200 square feet. three sides of the

Vladimir79 [104]

Let

x---------> the length side of the rectangular area

y---------> the width side of the rectangular area

we know that

the area of the rectangle is equal to

$A=x*y\\ A= 200\ ft^{2} \\ x*y=200$

$y=\frac{200}{x}$ -----> equation $1$

The perimeter of the rectangle is equal to

$P=2x+2y$

but remember that the fourth side of the rectangle will be formed by a portion of the barn wall

so

$P=x+2y$ -----> equation $2$

<em>To minimize the cost we must minimize the perimeter</em>

Substitute the equation $1$ in the equation $2$

$P=x+2*[\frac{200}{x} ]$

Using a graph tool

see the attached figure

The minimum of the graph is the point $(20,40)$

that means for $x=20\ ft$

the perimeter is a minimum and equal to $40\ ft$

<u>Find the value of y</u>

$y=\frac{200}{x}$

$y=\frac{200}{20}$

$y=10\ ft$

The cost of fencing is equal to

$5*40= \$200$

therefore

<u>the answer is</u>

the length side of the the fourth wall will be $20\ ft$

7 0

3 years ago