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docker41 [41]
2 years ago
12

SOLVE EQUATION BY TAKING SQUARE ROOTS. -100+81a^2=0

Mathematics
2 answers:
belka [17]2 years ago
8 0

GOOD MORNING AND CONGRATULATIONS ON YOU GRADUATING :D

IceJOKER [234]2 years ago
7 0

Answer:

a = ±10/9

Step-by-step explanation:

-100+81a^2=0\\81a^2=100\\a^2=\frac{100}{81}\\\sqrt{a^2}=\sqrt{\frac{100}{81} }\\a=10/9\\a=-10/9

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What is the value of x?
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3 years ago
One of the factors of the polynomial x3 − 5x2 is x + 3. What is the other factor?
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3 years ago
The blue lake trail is 11 3/8 miles long. Gemma has hiked 2 1/2 miles each hour for 3 hours. How far is she from the end of the
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In the question it is given that the length of the blue lake trail is 11 3/8 miles. In the question it is also given that Gemma has hiked for a total time of 3 hours and each hour she has hiked 2 1/2 miles.
Now coming to solving the problem we get:
Total length of blue lake trail = 11 3/8 miles
                                             = 91/8 miles
Distance hiked by Gemma in 1 hour = 2 1/2 miles
                                                           = 5/2 miles
Then the total distance hiked by Gemma in 3 hours = (5/2) * 3
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The distance left to cover the full trail = (91/8) - (15/2) miles
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So Gemma is 31/8 miles or 3 7/8 miles from the end of the trail.
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3 years ago
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