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Pie
3 years ago
6

Simplify the following expressions. Assume all variables are positive.

Mathematics
1 answer:
zvonat [6]3 years ago
6 0
1) 49^43/12
2)1/9
3) 2x^6
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Nina can type 124 words in 4 minutes.at this rate how many words can nina type in an hour
Ludmilka [50]

Answer:

<em>1,860</em>

Step-by-step explanation:

FIRST:

we divide 124 by 4 because in 4 minutes he can type 124 words, and we need to figure out how many he can type in a minute.

124 divided by 4 is 31. (they can type 31 wpm)

NEXT: now we know they can type 31 wpm, we need to multiply that number by 60 because there are 60 minutes in an hour.

31 x 60 = 1,860

therefore, they can type 1860 words per hour

hope i helped have a great day/night! :'')

6 0
3 years ago
Evaluate 7C6. (1 point)<br><br> A. 9<br> B. 1<br> C. 5,040<br> D. 7
notsponge [240]
\bf _nC_r=\cfrac{n!}{r!(n-r)!}\qquad &#10;\begin{cases}&#10;n=\textit{total elements}\\&#10;r=\textit{partials}\\&#10;--------\\&#10;n=7\\&#10;r=6&#10;\end{cases}\implies _7C_6=\cfrac{7!}{6!(7-6)!}
5 0
3 years ago
Read 2 more answers
The number 0.6064 represents the area under the standard normal curve below a particular z-score. What is the Z-score? Express t
Anastasy [175]
P(z < x) = 0.6064 - 0.5 = 0.1064

From the normal distribution table
P(z < 0.27) = 0.1064

Therefore the z-score is 0.27

I can't explain it very well for you, sorry. 
4 0
3 years ago
Read 2 more answers
A salesperson earns $8 per hour plus 6% commission on her sales. In a week when she worked 40 hours, her total earnings were $69
mash [69]

Answer:

372

Step-by-step explanation:

8x40=320

692-320=372

5 0
3 years ago
Need help with this
Ganezh [65]

average = 85 MPH and traveled for 6 hours


total = 85 x 6 = 510 miles


answer

510 miles from Orlando to Augusta

4 0
3 years ago
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