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4 years ago

What is "k" ? 20k+4+33k-9

Mathematics

1 answer:

kifflom [539]4 years ago

7 0

I think it is -45
Hope this helps

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Use integration by parts to find the integrals in Exercise. ∫xex dx.

Y_Kistochka [10]

Answer:

$xe^{x} - e^{x} +C$

Step-by-step explanation:

using the formular for integration by parts;

∫udv = uv -∫vdu ..............equ 1

in the equation below;

∫ $xe^{x}$

u=x , dv = $e^{x}$

du= 1 v= $e^{x}$

Substitute into equ 1

∫udv = $xe^{x}$ - ∫ $e^{x}dx$

∫udv = $xe^{x}$ - $e^{x} + C$

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3 years ago

An athlete earns $350,000 each year. If his team makes the play-offs, he will earn a 15% bonus. What will be his total earnings

Komok [63]

15% of $350,000 is $52,500. so you add $52,500 to $350,000 and you get $402,500

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3 years ago

A printer takes 30 minutes to print a banner and a poster. I will take 50 minutes to print a banner and three posters. How long

qwelly [4]

Answer:

It takes the printer 20 minutes to print a banner

Step-by-step explanation:

Notice that there are two unknowns in this problem: the time to print a poster and the time to print a banner. Let's assign the letter "b" to the time it takes to print a banner, and "p' the time it takes to print a poster.

So we can write the following two equations involving the total amount of time that takes to print in the two cases:

$b+p=30\\b+3p=50$

We can solve for the unknown "p" by subtracting term by term in the equation set above:

$b+3p=50\\b+p=30\\\\b-b+3p-p=50-30\\2p=20\\p=10$

So it takes 10 minutes to print each poster, we can find the time it takes to print the banner by using the value we just found in one of the equations:

$b+p=30\\b+10=30\\b=20$

So, it takes 20 minutes to print a banner.

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3 years ago

Find w. A. 8.9 B. 0.05 C. 0.08 D. 5.2

enyata [817]

Answer:

Step-by-step explanation:

Measure of angle V = 180 - 62 - 36 = 82 degrees

So by the law of sines, 10/sin(82 deg) = w/sin(62 deg)

w = [10sin(62)]/sin(82)

from here just plug this into a calculator

4 0

2 years ago

111 is 25\%25%25, percent of what number?

vodka [1.7K]

Answer:

444

Step-by-step explanation:

111x4=444

25 percent is equal to 1/4

8 0

3 years ago