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2 years ago

Which of the following is a quadratic equation that has the roots x = 2 and x = −7? (4 points)

Mathematics

1 answer:

crimeas [40]2 years ago

8 0

Answer:

x^2 + 5x - 14

Step-by-step explanation:

We can assume that if there is 2 options for x, this is a quadratic equation that equals 0.

Therefore, we can put this into brackets as one bracket must equal 0.

(x - 2) (x + 7)

After this we expand, which is a process easier to search up

The answer is:

x^2 + 7x - 2x - 14

We can simplify this to:

x^2 + 5x - 14

x^2 represents x squared in case you were wondering

Therefore, the answer is:

x^2 + 5x - 14

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The cylindrical giant ocean tank at the New England aquarium in Boston is 24 feet deep and has a radius of 18.8 feet find the vo

Marina CMI [18]

It is 26635.2384 because you multiply the pi times the radius18.8 to the 2nd power times the height that is 24

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3 years ago

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In ABC, the interior angle at A is 51° and the exterior angle at B is 119º. The interior angle at C measures

erastova [34]

Answer:

68 degrees

Step-by-step explanation:

To get the interior angle, we use an important triangle principle

The principle is that the sum of the opposite interior angles equal the exterior angle

Let the second interior angle be x

x + 51 = 119

x = 119-51

x = 68

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3 years ago

80 POINTS

frez [133]

I GOT YOU

1. b

2. b

3. b

4. c

5. c

6. a

7. c

8. b

9. a

10. d

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3 years ago

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Solve. - 1/3b = 9 A. -3 B. 3 C. - 27 D. 27

ruslelena [56]

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3 years ago

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If 5 hamburgers cost $10, what is the cost for 3 hamburgers?

mestny [16]

Answer: 6$

Step-by-step explanation: 5 divided by 10 = 2$ so 3 x 2 = 6

I do not hold responsibility if you get it wrong :(

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3 years ago