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seraphim [82]
3 years ago
15

Find the solution of the quadratic equation x^2+4x-12=0 MUST SHOW WORK!!!

Mathematics
1 answer:
bezimeni [28]3 years ago
3 0

Answer:

x = 2,−6

Step-by-step explanation:

Move all terms to the left side and set equal to zero. Then set each factor equal to zero

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Can someone plz help me... it would be great if u did all three questions
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3 years ago
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A parachute speed during a free fall reaches117 miles per hour What is the speed in feet per second At the speed how many feet w
qwelly [4]

Answer:

Speed is 171.6 ft/s and distance is 1716 feet

Step-by-step explanation:

Given that,

The speed of a parachute = 117 miles per hour.

1 mph = 1.47 ft/s

117 mph = 171.6 ft/s

We need to find the distance it travel during 10 s. We know that the distance covered is equal to the product of speed and time taken. So,

d = vt

d=171.6\ ft/s\times 10\ s\\\\=1716\ \text{feet}

Hence, this is the required solution.

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2 years ago
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Answer:

Dumbing down is the deliberate oversimplification of intellectual content in education, literature, and cinema, news, video games and culture.

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2 years ago
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Find the area of the figure. Use 3.14 for pie . Round your answer to the nearest tenth.
gizmo_the_mogwai [7]

Answer:

538.3

Step-by-step explanation:

First of all find the area of the rectangle

L*W

15*30

450

Now find the area of semi circle

1/2\pi r^{2}

Since radius is half a diameter divided 15 by 2=7.5

1/2\pi 7.5^{2}                            7.5 times 7.5= 56.25

1/2*3.14*56.25

56 times 3.14 is 176.625 now multiply 176.625 by 1/2

Answer is 88.3125

Now add 450 to 88.3125

Final answer: 538.3125

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F(-1) = 2(-1)^2 + 8(-1)
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