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3 years ago

15

PLEASE HELP DUE TONIGHT! 100 PTS

2 answers:

Naily [24]3 years ago

7 0

Answer:

a. $15.00

b. $15.00

c. they earn the same. If you divide Carl's hours by the amount of time he works, for instance, 45÷3=15, you get 15 for all of them. They earn the same.

Marizza181 [45]3 years ago

5 0

Answer:

Step-by-step explanation:

Louis earns 15 $ per hour.

for Carl

money earned per hour=45/3=15 $

both earn same amount.

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HELPPP<br><br> Solve: r = -5 + 19. r =____?<br> -24<br> 14<br> -14<br> 24

olganol [36]

Answer:

14

Step-by-step explanation:

19 - 5 = 14

8 0

3 years ago

Read 2 more answers

Calc help pretty please

Gre4nikov [31]

Answer:

A. 77.4

Step-by-step explanation:

<u>Linear approximation formula</u>

$L(x)=f(a)+f'(a)(x-a)$

Given function:

$f(x)=(x+1)^2$

$\boxed{\begin{minipage}{5.4 cm}\underline{Chain Rule for Differentiation}\\\\If $y=f(u)$ and $u=g(x)$ then:\\\\$\dfrac{\text{d}y}{\text{d}x}=\dfrac{\text{d}y}{\text{d}u}\times \dfrac{\text{d}u}{\text{d}x}$\\\end{minipage}}$

$\boxed{\begin{minipage}{5 cm}\underline{Differentiating $x^n$}\\\\If $y=x^n$, then $\dfrac{\text{d}y}{\text{d}x}=xn^{n-1}$\\\end{minipage}}$

$\boxed{\begin{minipage}{4 cm}\underline{Differentiating $ax$}\\\\If $y=ax$, then $\dfrac{\text{d}y}{\text{d}x}=a$\\\end{minipage}}$

Use the chain rule to differentiate the function.

$\textsf{Let }\:y=u^2\:\textsf{ where }u=(x+1)$

Differentiate the two parts separately:

$y=u^2 \implies \dfrac{\text{d}y}{\text{d}u}=2u$

$u=x+1 \implies \dfrac{\text{d}u}{\text{d}x}=1$

Put everything back into the chain rule formula:

$\begin{aligned} \implies \dfrac{\text{d}y}{\text{d}x} & =2u \times 1\\ & = 2u \\ & = 2(x+1)\\ & = 2x+2 \end{aligned}$

$\textsf{Therefore, }\:f'(x)=2x+2.$ .

The <u>linear approximation</u> at a = 8 is:

$\begin{aligned}L(x) & =f(a)+f'(a)(x-a)\\\\\implies L(x) & = f(8)+f'(8)(x-8)\\& = (8+1)^2+(2(8)+2)(x-8)\\& = 81+18(x-8)\\& = 18x-63\end{aligned}$

Finally, substitute x = 7.8 into the <u>linear approximation equation</u>:

$\begin{aligned}\implies L(7.8) & =18(7.8)-63\\& = 140.4-63\\& = 77.4\end{aligned}$

4 0

2 years ago

Read 2 more answers

There are 275 people in the movie theater.The same number of people are seated in each of the 5 different sections of the theate

borishaifa [10]

The number of people seated in each section is 55.

<em><u>Explanation</u></em>

Suppose, the number of people seated in each section is $x$

As, the same number of people are seated in each of the 5 different sections, so the <u>total number of people seated in all those 5 sections</u> $=5x$

Given that, there are 275 people in the movie theater. So, the equation will be....

$5x=275\\ \\ x=\frac{275}{5}=55$

So, the number of people seated in each section is 55.

8 0

3 years ago

What is The answer for number one?

maks197457 [2]

I think is 22
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4 0

3 years ago

Twice the difference of p and 10

ahrayia [7]

2( twice) (p-10) difference of p and 10

2( p-10)

2p-20

7 0

3 years ago