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sashaice [31]
4 years ago
6

8. Write the quadratic formula

Mathematics
1 answer:
Aleonysh [2.5K]4 years ago
4 0

Answer:  Formula= x^2 - 2x - 8

Roots=(-2 , 0) (4 , 0)

Step-by-step explanation:

1.) find the equation (the formula is Ax^2 + Bx + C, so plug it in)

2.)Plug it into your calculator's Y= X^2 - 2X - 8 (if you have one)

3.)Press 2nd, Calc, 2

4.)Go to the X Intersect , it will say Left Bound at the bottom left corner

5.)Press the left arrow about 3 or 4 times, hit enter

6.) It will now say Right Bound in the same corner go back to the X intersect, now press the right arrow 3 or 4 times

Repeat steps 3 to 6 for the other X intersect.  

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solniwko [45]

Answer:

20

Step-by-step explanation:

From if y=-7 when x=-14 ---->  x=2y

that means when y=10, x=20

4 0
3 years ago
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Karson drove from his house to work at an average speed of 35 miles per hour.  The drive took him 20 minutes.  If the drive took
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Answer:

Karson's average speed on his way home was 28 miles per hour.

Step-by-step explanation:

Since Karson drove from his house to work at an average speed of 35 miles per hour, and the drive took him 20 minutes, if the drive took him 25 minutes and he used the same route in reverse, to determine what was his average speed going home, the following calculation must be performed:

60 = 35

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20 x 35/60 = X

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60 x 11.666 / 25 = X

27.99 = X

Therefore, Karson's average speed on his way home was 28 miles per hour.

3 0
3 years ago
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den301095 [7]

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yes

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8.25 would be since in the 0.05 would be larger than 0.02

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3 years ago
What is the length of DE ?
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If it cost 21 dollars then she probably bought 12 roses
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