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3 years ago

What wrong with this 21.8x0.4=87.2

Mathematics

2 answers:

Sliva [168]3 years ago

8 0

im not sure but 87.2 is the correct answer . are the decimals in the wrong place do you have a paper

Brrunno [24]3 years ago

4 0

I think the wrong is the answer , I hope that help , good luck

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A public swimming pool that holds 45,000 gallons of water is going to be drained for maintenance at a rate of 100 gallons per mi

crimeas [40]

Answer:

450 minutes

Step-by-step explanation:

Given

w = 45000 - 100t

Required

Determine how long it'll take to empty the pool

Being empty means there's no water in the pool.

So, we have to set w to 0 to get the value of t

i.e w = 0

Substitute 0 for w in w = 45000 - 100t

0 = 45000 - 100t

Collect Like Terms

100t = 45000

Divide through by 100.

t = 450

Hence, it'll take 450 minutes to empty the pool

8 0

3 years ago

Given f(x)=4x+5 and g(x)= x^2+x; find (f∘g)(-5)<br> Please show all steps thank you

Greeley [361]

Answer:

$(f\circ g)(-5)=85$

Step-by-step explanation:

We are given:

$\displaystyle f(x)=4x+5\text{ and } g(x)=x^2+x$

And we want to find:

$(f\circ g)(-5)$

This is equivalent to:

$\displaystyle =f(g(-5))$

So, we will evaluate g(-5) first, which yields:

$\displaystyle g(-5)=(-5)^2+(-5)=25-5=20$

So:

$=f(g(-5))=f(20)$

Then:

$\displaystyle f(20)=4(20)+5=80+5=85$

Therefore:

$(f\circ g)(-5)=85$

6 0

3 years ago

The area of Shawn's bedroom is 110 square feet. He places his bed, which is 7 feet long and 5 feet wide, in one corner of the be

vagabundo [1.1K]

Answer:

gggg

Step-by-step explanation:

duxufif8fis5durris5is

6 0

3 years ago

Hey whats 9x 27 and who likes memes i need a group

denpristay [2]

9x27 is 2187 hope this helps

5 0

3 years ago

Read 2 more answers

Suppose f(x)=2x-5 and g(x)=|-3x-1|.<br> Find the following value.<br> 2g(-4)=??

Tema [17]

When x = -4,
g(-4) = |-3*(-4) - 1| = 11

So, 2g(-4) = 2 * 11 = 22

[Where * represents multiplication.]

6 0

4 years ago