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Karo-lina-s [1.5K]
3 years ago
7

Using the Quadratic Formula, which of the following is the solution to the quadratic equation x2 - x - 20 = 0?

Mathematics
2 answers:
svlad2 [7]3 years ago
8 0
The answer to this is c
katovenus [111]3 years ago
4 0
The answer to the question is c
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two angles are complementary of the sum of their measures is 90 degree. The measure of the first angle is x degree and the secon
Alik [6]

9514 1404 393

Answer:

  32°, 58°

Step-by-step explanation:

The second angle is (3x-38), and their sum is ...

  x +(3x -38) = 90

  4x = 128 . . . . . . . . . add 38 and simplify

  x = 32 . . . . . first angle

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The measures of the two angles are 32° and 58°.

6 0
3 years ago
What is f(7) if f(x) = 5x​
Brilliant_brown [7]

Answer:

35

Step-by-step explanation:

f(x) = 5x means you multply the given f function by 5

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3 years ago
I need help please!! Can’t figure this out
Advocard [28]

Answer:

-6( 2-r ) = 42

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3 years ago
When 8 is added to the difference between nine times a number and 9​, the result is greater than 14 added to 88 times the number
larisa [96]
Is this the answer? Sorry if it’s wrong lol

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3 years ago
Del ray can run 20 1/2 miles in 2 1/4 hours. How many miles per hour can he run?
emmasim [6.3K]
20 \frac{1}{2} :2 \frac{1}{4} = \frac{41}{2}: \frac{9}{4}=  \frac{41}{2}* \frac{4}{9} =\frac{82}{9} =  9 \frac{1}{9} \ \ \text{miles per hour}
5 0
3 years ago
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