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3 years ago

2(x + 25) HELPPPPP MEEEEE

Mathematics

2 answers:

Nadya [2.5K]3 years ago

7 0

Answer:

2x+50

Step-by-step explanation:

Distributive property: 2(x)+2(25)

Simplify: 2x+50

erastovalidia [21]3 years ago

6 0

Answer: 2x + 50

Step-by-step explanation: In this problem, the 2 distributes through the parenthses, multiplying by each of the terms inside.

So we have 2(x) + 2(25) which simplifies to 2x + 50.

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What is the area of this trapezoid?

labwork [276]

Answer:

A = 30 inches ^2

Step-by-step explanation:

The area of a trapezoid is given by

A = 1/2 (b1+b2) *h where b1 and b2 are the lengths of the bases and h is the height

A = 1/2(10+5) *4

A = 30 inches ^2

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3 years ago

In Exercise, find the derivative of the function.<br> y = 3ex - xex

nevsk [136]

Answer:

the question is incomplete, the complete question is "find the derivative of the function $y=3e^{x}-xe^{x}$ "

answer: $\frac{dy}{dx}=(2-x)e^{x}$ .

Step-by-step explanation:

From the equation, $y=3e^{x}-xe^{x}$ , we approach the question using the differentiation of a product and differentiation of a sum simultaneously,

the differentiation of a sum is express as

f(x)=u(x)+v(x)+.....w(x) then

$\frac{df(x)}{dx}=\frac{du(x)}{dx}+\frac{dv(x)}{dx}+...\frac{dw(x)}{dx}.\\$

For the differentiation of a product we have

f(x)=u(x)v(x), then

$\frac{df(x)}{dx}=\frac{dv(x)}{dx}u(x)+\frac{du(x)}{dx}v(x)$

hence if we go by the formula we arrive at

for $y=3e^{x}$

let u(x)=3 hence du/dx=0 and

$v(x)=e^{x}$ and $\frac{dv(x)}{dx}=e^{x}$

hence $\frac{dy}{dx}=3e^{x}+0e^{x}\\\frac{dy}{dx}=3e^{x}---equation 1\\$

Also for $y=-xe^{x}\\\frac{dy}{dx}=-e^{x}-xe^{x}---equation 2$ .

if we add equation 1 and equation 2 we arrive at

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

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3 years ago

3x+4=17x-10 what is x

Alisiya [41]

Answer:

$x=1$

Step-by-step explanation:

$3x+4=17x-10$

Subtract 4 from both sides:

$3x+4-4=17x-10-4$

$3x=17x-14$

Subtract 17x from both sides:

$3x-17x=17x-14-17x$

$-14x=-14$

Divide both sides by -14:

$\frac{-14x}{-14}=\frac{-14}{-14}$

$x=1$

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3 years ago

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Alex73 [517]

Answer:

ummm....like this?

Step-by-step explanation:

3*2=6

3*3=9

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i don't know if this is what you mean by here you go

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3 years ago

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