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aleksandr82 [10.1K]
4 years ago
10

I need help with this question

Mathematics
2 answers:
Gekata [30.6K]4 years ago
6 0
I just had a test on this, lol

this is actually pretty easy.

do you know what an exponent is? the exponent here is 5. that means you do 2 × 2 × 2 × 2 × 2. because its two to the fifth power.

so that would equal 32.

since there is a negative sign, its -2 × -2 × -2 × -2 × -2

the answer would be negative two, because the exponent is an odd number.

here is an easy trick:
whenever the exponent in these type of problems is odd, the answer is negative.
if its an even number, the answer is positive.

why???? because a negative times a negative is a positive, and a positive times a negative is a negative.

so once again, your answer is -32.

hope i helped !!!
MA_775_DIABLO [31]4 years ago
6 0
The answer for this he question is -32 because -2^2 is 4 and 4^2 is 16. Finally 16•-2 is -32
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Alex is creating an outdoor structure out of two 12 foot boards. The boards must have an angle of elevation
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Answer:

5.0 ft - 5.6 ft

Step-by-step explanation:

Given that the structure is to be made using two 12 foot boards, then we expect the total perimeter to be equal to (2*12)= 24 ft.

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Tan α = opposite side length/adjacent length

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Applying the cosine of an angle formula to find the length of the sliding side

Cosine β = adjacent length /hypotenuse

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sliding side length = 8/cosine 40° =10.44 ft

Checking  the perimeter = 10.44 +8+6.71= 25.15 ft

This is more than the total lengths of the boards, so you need to adjust the height as;

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6 0
3 years ago
2/3x-5=21<br> (2/3 is a fraction_
pochemuha
2/3 x - 5 = 21
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5 0
4 years ago
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Alexeev081 [22]

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Step-by-step explanation:

20x^3 - 245xy^2

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Check your answer:

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5x(4x^2 - 49y^2) can also be written as:

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Hope this helps!

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