3 years ago

Simplify the expression please

Mathematics

1 answer:

Luden [163]3 years ago

4 0

Answer:

Step-by-step explanation:

$\frac{-9x^{5} }{\sqrt{x+4} } = \frac{-9x^{5}\sqrt{x+4} }{\sqrt{x+4}\sqrt{x+4} }\\= \frac{-9x^{5}\sqrt{x+4} }{x+4 }$

Here is the answer for you.

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qaws [65]

Answer:

Step-by-step explanation:

600,000,000

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3 years ago

Read 2 more answers

How do u solve 50=pi*2(h+3)

lakkis [162]

$\bf 50=\pi 2(h+3)\implies 50=\stackrel{\textit{distributing first}}{2\pi h+6\pi }\implies 50-6\pi =2\pi h \\\\\\ \cfrac{50-6\pi }{2\pi }=h\implies 4.957747154594767 \approx h$

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3 years ago

Erica can paint her room 5 hours .If she had her friend Rachel help her , they can paint the room together in 3 hours .How long

LUCKY_DIMON [66]

Answer:

7 hours 30min

Step-by-step explanation:

Step one :

Given data

We are told that Erica can paint 1 room in 5hours

Her work rate is 1/5 room per hour

And also with the assistance of her friend they can paint 1 room in 3 hours

Hence their combined work rate is 1/3 room per hour

Step two

The combined work expression is

1/A+1/B=1/T

Where A=Erica's work rate

B=Rachael's work rate

T=combined work

1/5+1/B=1/3

1/B=1/3-1/5

1/B=5-3/15

1/B=2/15

B=15/2

B=7.5 hours

It will take Rachel 7 hours 30min to paint the room

4 0

3 years ago

A rivers current flows at a rate of 2.4 miles per hour. how many feet per second is this

icang [17]

Answer:

Step-by-step explanation:

0.6 per second

3 0

3 years ago

Abygail is building a dollhouse. She has boards that are two different lengths. One long board is 10 inches longer than the tota

nikitadnepr [17]

Answer:

9 in

Step-by-step explanation:

a short bored is 9 in

37-10=27

27÷3=9

So that means a short bored is 9 in

7 0

2 years ago