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AysviL [449]
3 years ago
12

What is the solution(s) to the equation 5a2 - 44 = 81?

Mathematics
1 answer:
taurus [48]3 years ago
7 0

Answer:

B

Step-by-step explanation:

5a^2 - 44 = 81                     Add 44 to both sides

5a^2 = 81 + 44                    Collect like terms

5a^2 = 125                          Divide both sides by 5

a^2 = 125/5                  

a^2 = 25                              Take the square root of both sides

√a^2 = √25

a = +5

a = -5

The answer is B

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How do you express 2/5 of 7/10 in product
lisabon 2012 [21]

Answer:

Of means multiply in math (most of the time).  

So multiply.  

2/5 x 7/10 = 14/50 divided by 2/2 = 7/25

Step-by-step explanation:

3 0
2 years ago
PLEASE HELP ASAP WILL GIVE BRAINLIEST!!!!!
olasank [31]

Answer:

A. (0,7)

B. -1.25

C. Negative

D. I started at (0,7), then plotted the second point by moving the point down 5 and right 4.

Step-by-step explanation:

Look at the equation more carefully.

I hope this helps :)

5 0
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Read 2 more answers
What is the fraction of 10-6
gladu [14]

Answer:

1 4/6

Step-by-step explanation:

8 0
3 years ago
Help?????? Does anyone know the answer to this
Rama09 [41]
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5 0
2 years ago
A square is inscribed in a circle . If the area of the square is 9 inch square what is the ratio of the radius of the circle to
OLga [1]

Answer:

  (√2)/2

Step-by-step explanation:

The ratio of the radius of the circle to the side of the inscribed square is the same regardless of the size of the objects.

The radius of the circle is half the length of the diagonal of the square. For simplicity, we can call the side of the square 1, so its diagonal is √(1²+1²) = √2 by the Pythagorean theorem. The radius is half that value, so is (√2)/2. The desired ratio is this value divided by 1.

Scaling up our unit square to one with a side length of 3 inches, we have ...

  radius/side = ((3√2)/2) / 3 = (√2)/2

_____

A square with a side length of 3 inches will have an area of (3 in)² = 9 in².

7 0
3 years ago
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