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Alchen [17]
3 years ago
7

Moesha needs $79 for a class trip. She already has $22 and she can earn the rest by babysitting for 8 hours. If h represents her

hourly earnings,
which of the following equations can be solved to find Moesha's hourly
earnings? Select all that apply.

Mathematics
2 answers:
Karolina [17]3 years ago
7 0

Answer:

79.5 = 22.35 + 8

I got it correct with with answer.

elena55 [62]3 years ago
6 0

Answer:

79-22=8h

Step-by-step explanation:

She can earn the rest by babysitting for only 8 hours,

so take 22 from 79, divide the total by 8 and that is how much she gets per hour (8h)

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Simplify the following expression. 4a^-2b<br><br> A.) b/4a^2<br> B.)4b/a^2<br> C.)1/4a^b2
Sergio [31]
ANSWER

The correct answer is B

\frac{4b}{ {a}^{2} }


EXPLANATION

The given exponential expression is

4 {a}^{ - 2} b

We can rewrite this as,

4b \times  {a}^{ - 2}

We need to simplify to obtain a positive index, so we apply the following property,


{a}^{ - m}  =  \frac{1}{ {a}^{m} }

This implies that,


4b \times  {a}^{ - 2}  = 4b \times  \frac{1}{ {a}^{2} }

This will finally simplify to,

4b \times  {a}^{ - 2}  =\frac{4b}{ {a}^{2} }


Therefore the correct answer is B
6 0
3 years ago
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koban [17]
I have the same problem here with a slight change in the given values:

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</span>
I hope my guide has come to your help. God bless and have a nice day ahead!
5 0
3 years ago
Find the center, vertices, and foci of the ellipse with equation x squared divided by 400 plus y squared divided by 625 = 1
Inessa05 [86]

Answer:

x^2/400 + x^2/625

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The correct answer is c=-5

(-5,0)

(5,0)

Step-by-step explanation:

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