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3 years ago

5

Frank is going to the airport. It is 11:43 AM right now. Frank's flight will depart in 2 hours 40 minutes. What is the departure

time of his flight?

1 answer:

Stels [109]3 years ago

5 0

Ok it would be 1:23 p.m. i think

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Solve x/42=377 using two different strategies.

Butoxors [25]

Cross multiplying making x subject of the equation or multiplying 42 from both sides

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3 years ago

milk is 2.89 a gallon. if each geralds four children drinks 0.5 gallons of milk per week how much does he spend each week on mil

Aleks04 [339]

Amount of milk drunken: (4 children)(0.5 gall per week per child)

Multiply the result of the above calculation by ($2.89 / gallon):

4(0.5)($2.89) = $5.78 per week milk expenditure

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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

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

4 0

3 years ago

WILL GIVE POINTS FOR Quick ANSWER TY!<br> Solve for x.

Finger [1]

Step-by-step explanation:

this will help you

if not correct please tell me

7 0

3 years ago

Solve: 8 – 2x = 2<br> x=<br><br> And how?

TiliK225 [7]

Answer:

x = 3

Step-by-step explanation:

8 - 2x = 2

- 2x = 2 - 8

- 2x = - 6

- x = - 6/2

- x = - 3

x = 3

5 0

4 years ago

Read 2 more answers