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3 years ago

(DONT ANSWER UNLESS UR IN MY FRIEND GROUP AND WANT ALOT OF NOTIFS) Solve: 23x-44+45/23

Mathematics

1 answer:

Pie3 years ago

3 0

Answer:

Step-by-step explanation:

the answer is 69 bc it is correct

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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

#7 I don't know how to solve this

____ [38]

30+1.95x=7.95x

so, 6x=30

x=5

3 0

3 years ago

Big Points

Llana [10]

Answer:

y = -5

Step-by-step explanation:

The coordinate point is in the format (x, y)

Therefore, the y-value of (4, -5) is -5

So the equation of the horizontal line is therefore y = -5

7 0

2 years ago

Read 2 more answers

A campus deli serves 300 customers over its busy lunch period from 11:30 a.m. to 1:30 p.m. A quick count of the number of custom

NeX [460]

Answer:

4 minutes

Step-by-step explanation:

There are two hours from 11:30 a.m. to 1:30 p.m

The hourly rate of service is:

$r=\frac{300}{2}=150\ customers/hour$

If the average number of customers in the system (n) is 10, the time that a customer spends in process is given by:

$t=\frac{n}{r} =\frac{10}{150}=0.06667\ hours$

Converting it to minutes:

$t= 0.066667\ hours*\frac{60\ minutes}{1\ hour}\\t=4\ minutes$

A customer spends, on average, 4 minutes in process.

7 0

4 years ago

A news service conducted a survey of 1077 adults ages 18 years or older in a certain country, August 31−September 2, 2015. The

koban [17]

Answer:

To determine the percent of adults in the country who believe that the federal government wastes 51 cents or more of every dollar.

Step-by-step explanation:

As per the given scenario, the research objective is :

To determine the percent of adults in the country who believe that the federal government wastes 51 cents or more of every dollar from the population that contains, adults of the country who are aged 18 years or older.

7 0

4 years ago

Read 2 more answers