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77julia77 [94]
3 years ago
15

Which expression is equivalent to (7 to the 3rd exponent)-2 exponent?

Mathematics
1 answer:
zaharov [31]3 years ago
5 0
1 over 117649 is equivalent to (7^3)^-2
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Solve the inequality.
ANEK [815]

Answer:

P<-28...u should do this

4 0
2 years ago
How do I simplify the following to "a+bi" form: (1+2i)^3
damaskus [11]

Answer:

Expand it.

(1+2i)^3 is equal to (1+2i)(1+2i)(1+2i).

Multiply everything out (being sure to multiply <em>every</em> term. (1+2i) * (1+2i) = 1+2i+2i+4i^2.

i is the square root of negative one, so i^2 is just -1. 1+2i+2i-4 is what you get from the first two, so now simplify that:

1-4 + 2i+2i = (-3+4i) and now multiply that by (1+2i):

(-3+4i) * (1+2i) = -3 - 6i +4i +8i^2.

Simplify again, and the answer is: -11-2i

Step-by-step explanation:

I hope this helps - really my only tip is don't spend time thinking about what i is, that just hurts your brain. Just remember that i^2 is equal to negative one, and treat it like regular multiplication and you will be fine.

7 0
2 years ago
A transversal intersects two lines which condition would make the two lines parallel
lys-0071 [83]
The slope is that same
3 0
3 years ago
Paul bought 2.25 meters of wood to make 5 shelves of equal length . What is the length of each shelf ? show your work on a picec
LiRa [457]

Answer:

Length of each shelf is 0.45 meters

Step-by-step explanation:

Given

Total\ Length = 2.25\ meters

Shelves = 5

Required

Determine the length of each shelf

This is calculated by dividing the total length by number of shelves as thus:

Length = Total\ Length/Number\ of\ Shelf

Length = 2.25m /5

Length = 0.45m

Hence;

<em>Length of each shelf is 0.45 meters</em>

3 0
3 years ago
Read 2 more answers
help plz last attempt on quiz i dont understand.An student is listening to songs that are on his phone. On his phone, he has 10
Elena-2011 [213]

write fractions for each type of song out of the total

10/45 country

15/45 pop

5/45 r&b

10/45 rap

5/45 techno

write these fractions in their simplest forms

2/9 country

1/3 pop

1/9 r&b

2/9 rap

1/9 techno

<em>the chances of the next song played on shuffle being pop is 15/45, or 1/3</em>


<em>(hope this helps! if it does, please give brainliest! thank you x)</em>

5 0
4 years ago
Read 2 more answers
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