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kap26 [50]
3 years ago
10

Marina correctly simplified the expression (-4a^-2 b^4)/(8a^-6b^-3) assuming that a does not equal 0 and b does not equal 0. Her

simplified expression is below.
-1/2a^4b^

The exponent of the variable b in Marina’s solution should be...
Mathematics
2 answers:
Elza [17]3 years ago
7 0
For this case we have the following expression:
 (-4a ^ -2 b ^ 4) / (8a ^ -6b ^ -3)
 We can rewrite the expression using properties of exponents.
 We have then:
 (-4/8) * ((a ^ (- 2 - (- 6))) (b ^ (4 - (- 3))))
 Rewriting we have:
 (-2/4) * ((a ^ (- 2 + 6)) (b ^ (4 + 3)))
 (-1/2) * ((a ^ 4) (b ^ 7))
 -1 / 2a ^ 4b ^ 7
 Answer:
 
The exponent of the variable b in Marina's solution should be 7
Artist 52 [7]3 years ago
4 0

Answer:

option d

Step-by-step explanation:

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How do i do this problem?
morpeh [17]
2 1/3 + 1 3/4 = 3 10/12 

5/6 = 10/12

3 10/12 + 10/12 = 3 20/12 = 4 8/12 = 4 hours 40 minutes

4 hours 5 minutes away from 10:05 would be 6 pm

subtract 35 from that and you get 5:25 pm
3 0
3 years ago
A jetliner is traveling at 500 mph. How far does it travel in 10 seconds. I am trying to calculate how many cell towers a call w
Shkiper50 [21]

To solve this problem, we are going to use a method called dimensional analysis. This involves canceling out units by multiplying by fractions equivalent to 1. We begin with our given information, that the jet flies 500 miles in one hour, and we multiply that by the fraction 1 hour/60 minutes, which is equivalent to 1. We also have to multiply by 1 minute/60 seconds, because we are looking for the amount of miles the jet flies in seconds.

500 miles/1 hour * 1 hour/60 minutes * 1 minute/60 seconds = 500 miles/3,600 seconds

Now that we have our equivalent in seconds, we must multiply by 10 seconds in order to find our answer.

500 miles/3,600 seconds * 10 seconds = approximately 1.3888 miles

Therefore, the jet flies about 1.39 miles in 10 seconds.

Hope this helps!

5 0
2 years ago
HELP PLEASE!!! THIS IS URGENT!! When Isabel began her book-selling business, she stored her inventory in her garage. Now that he
Zanzabum

Answer:

Your question was very confusing but I tried...

Step-by-step explanation:

Area = 8,100 square feet

area of a square = a²

8,100 square feet = a²

√8,100 square feet = √a²

90 feet = a

total length each row of bookshelf is 4/5 of the length of the storage space.

90 feet * 4/5 = (90*4)/5 = 360/5 = 72 feet.

Area = (72 ft)²

Area = 5,184 square feet.

Hope this helped :)

7 0
3 years ago
If a 12-sided regular polygon rotates about its center, at which angle of rotation will the image of the polygon coincide with t
svp [43]
A full rotation is 360 degrees  so the required angle is 360/12 = 30 degrees.
3 0
3 years ago
Read 2 more answers
5x2 this answer is for my brother only my next answer will be everyone's
ikadub [295]

Answer:

the answer is 10

Step-by-step explanation:

because 5+5=10 or 5x2=10

6 0
3 years ago
Read 2 more answers
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