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LekaFEV [45]
3 years ago
8

Solve for a a +(-5) = -12 O a=-17 O a= -7 O a = 7 O a = 17

Mathematics
2 answers:
Nana76 [90]3 years ago
6 0
A= -7 Hope it helps!!
Nikolay [14]3 years ago
3 0

Answer:

a=-7

Hope it helped!

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The net below depicts a triangular prism. What is the total surface area of the prism?
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5 0
3 years ago
How to factor that polynomial
professor190 [17]
<h3><u>(1 + 5y)(1 - 5y) is the fully factored form of this polynomial.</u></h3>

This polynomial can be factored using difference of squares.

This polynomial is in the form of a^2 - b^2 = (a + b)(a - b)

Because 1 * 1 = 1, we can use this formula to simplify this polynomial.

1 - 25y^2 = (1 + 5y)(1 - 5y)

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(1 + 5y)(1 - 5y)

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6 0
2 years ago
Cost A=0.6489<br><br> take the inverse cosine of both sides
Stolb23 [73]
I am not quite sure what the question asks for,
But this is what i assume it wants:

Cos A= 0.6489
In this given one, we basically find the size of the angle A
we do cosine inverse on both sides to get the size of the angle A
cos^{-1} : It looks like this in the calculator
cos^{-1} × cos A=cos^{-1}(0.6489)
(cos^{-1} and cos cancels out)
A=cos^{-1}(0.6489)
A=49.54°
check: 
cos 49.54=0.6489 (its right!)

6 0
2 years ago
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