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4 years ago

7

Your answer should be a polynomial in standard form. (5w^2 + -3w + -4) (4w^3)

1 answer:

jeyben [28]4 years ago

6 0

Answer:

20w^5 - 12w^4 - 16 w^3

Step-by-step explanation:

20w^5 - 12w^4 - 16 w^3

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A high school student has started a new job. He plans to save $1 the first week, $2 the second week, $4 the third week, and $8 t

Mama L [17]

If you already know that you have . . .

1$ after week 1
2$ after week 2
4$ after week 3
8$ after week 4

. . . You can then tell that every week the money you save doubles (times 2)

So to continue . . . .
16$ after week 5
32$ after week 6
64$ after week 7
128$ after week 8
256$ after week 9
512$ after week 10

You will then know that after ten weeks u will have 512$ which is answer choice D.

Hope this helps! :)

3 0

3 years ago

Read 2 more answers

What is the greatest common factor of 49, 62 and 80?

steposvetlana [31]

Answer:

literally 1

Step-by-step explanation:

scooby ate my scooby snax

6 0

3 years ago

Read 2 more answers

HELP ME ASAP! Will give BRAINLIEST! Please read the question THEN answer correctly! No guessing. Check all that apply.

Vesnalui [34]

It’s the third one - I tried :)

8 0

3 years ago

Which expressions are equivalent<br> 27x/9x

uysha [10]

Answer:

3x

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

If y = 3x^3 - 2x and dx/dt equals 3, find dy/dt when x = -2. Give only the numerical answer. For example, if dy, dt = 4, type on

Nadya [2.5K]

Answer:

$\frac{dy}{dt} = 102$

Step-by-step explanation:

<u>step(i)</u>

Given function y = 3 x³ - 2 x ... (i)

Differentiating equation (i) with respective to 'x'

$\frac{dy}{dx} = 3 (3 x^{2} ) - 2(1)$

Given x = -2

$(\frac{dy}{dx} ) x_{=-2} = 3 (3 (-2)^{2} ) - 2(1)$

$(\frac{dy}{dx} ) x_{=-2} = 36 -2 =34$

<u><em>Step(ii):-</em></u>

<u><em>we know that </em></u>

$\frac{dy}{dx} = \frac{\frac{dy}{dt} }{\frac{dx}{dt} }$

Given $\frac{dx}{dt} = 3 and \frac{dy}{dx} = 34$

$\frac{dy}{dx} = \frac{\frac{dy}{dt} }{\frac{dx}{dt} }$

substitute values $\frac{dx}{dt} = 3 and \frac{dy}{dx} = 34$

⇒ $34 = \frac{\frac{dy}{dt} }{3 }$

cross multiplication , we get

$\frac{dy}{dt} = 34( 3 ) = 102$

<u><em>Final answer</em></u>:-

$\frac{dy}{dt} = 34( 3 ) = 102$

8 0

3 years ago