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3 years ago

Help me pleasse the first correct answer gets a brainliest

Mathematics

2 answers:

Yuri [45]3 years ago

7 0

Answer: 2,340

Step-by-step explanation:

First you have to find the total amount of books in the sample which is 1125 then you can see that 45 of those books have major damage. Next you need to divide 58,500 by 1125 to see how much you need to multiply 45 by which is 52. So now you need to multiply 45 by 52 which is 2340.

tigry1 [53]3 years ago

3 0

Answer:1005

Step-by-step explanation:sorry if I’m wrong I really want a like it would help a lot but I think this answer is right

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stira [4]

Move the triangle, 12 units right and 4 units bottom. Then, rotate it by 180 degrees. Transformation would be done!

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3 years ago

Read 2 more answers

HELP PLSSS I DONT REMEMBER!!

Tatiana [17]

Answer:

8x-31 = 2x+92

Step-by-step explanation:

The angles are corresponding angles and corresponding angles are equal

8x-31 = 2x+92

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3 years ago

How can I delete my membership?

steposvetlana [31]

Answer:

Yea

Step-by-step explanation:

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4 years ago

The perimeter of a rectangle downtown courtyard is 174 feet. The width of the rectangle is twice the length. Find the length and

kirill [66]

Answer:

Step-by-step explanation:

L = Length

W = Width

W = 2L

2W + 2L = 174

2(2L) + 2L = 174

6L = 174

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5 0

3 years ago

Radioactive Waste The rate at which radioactive waste is entering the atmosphere at time t is decreasing and is given by Pe^-kt,

Dmitry_Shevchenko [17]

Answer:

$\displaystyle{\int^{\infty}_0 {50e^{-0.04t}}\, dt}=1250$

Step-by-step explanation:

Given:

$T =\displaystyle{\int^{\infty}_0 {Pe^{-kt}} \, dt}$

where,

T = total amount of waste

P = 50, the initial rate

k = 0.04

t = time

$T =\displaystyle{\int^{\infty}_0 {50e^{-0.04t}} \, dt}$

now we need to solve this integral!

$T =\displaystyle{50\int^{\infty}_0 {e^{-0.04t}} \, dt}$

$T = \left|50\left(\dfrac{e^{-0.04t}}{-0.04}\right)\right|^{\infty}_0$

$T = \left|-1250e^{-0.04t}\right|^{\infty}_0$

$T = (-1250e^{-0.04(\infty)})-(-1250e^{-0.04(0)})$

when any number has a power of negative infinity it is 0. because: $a^-{\infty} = \dfrac{1}{a^{\infty}} = \dfrac{1}{\infty} = 0$ , like something being divided by a very large number!

$T = (-1250(0))-(-1250e^0)$

$T = 1250$

this is the total amount of waste

6 0

3 years ago