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2 years ago

X^2+3x-24= x 2 +3x−24= \,\,3x+1 3x+1

Mathematics

1 answer:

Vika [28.1K]2 years ago

6 0

Answer:

x=8 lol this is so easyndiewkkwwkwkwkw

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A segment with endpoints (3,7) and (-8,7) is rotated around the origin. how long will the new segment be ?

amid [387]

11 units long. When something is rotated it does not change its shape/length, only when it is dilated.

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3 years ago

Read 2 more answers

PLEASE HELP! it’s would be really appreciated

cluponka [151]

Answer:

46 degrees

Step-by-step explanation:

180 - 102 - 32 equals to 46

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2 years ago

What is the midpoint of FB

Lunna [17]

Answer:d

Step-by-step explanation:

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3 years ago

The length of a rectangle is 4 in longer than its width.

sertanlavr [38]

Answer:

60 sq in

Step-by-step explanation:

Perimeter = 2l + 2w

If l = w+4

Perimeter = 2(w+4) + 2w

Perimeter = 4w+8

32 = 4w + 8

24 = 4w

6 = w

If w = 6, l = 6+4 = 10

Area = l * w

Area = 10 * 6

Area = 60

3 0

3 years ago

A rocket is launched from the top of a 55-foot cliff with an initial velocity of 138 ft/s.

melisa1 [442]

For this case we have that the equation that describes the height is:

$h = -16t ^ 2 + vt + c$

Where,

v: initial speed

c: initial height

Substituting values we have:

$h = -16t ^ 2 + 138t + 55$

Then, to find the time, we use the quadratic formula:

$t =\frac{-b +/-\sqrt{b^2 - 4ac} }{2a}$

Substituting values we have:

$t =\frac{-138 +/-\sqrt{138^2 - 4(-16)(55)} }{2(-16)}$

Rewriting:

$t =\frac{-138 +/-\sqrt{19044 + 3520} }{-32}$

$t =\frac{-138 +/-\sqrt{22564}}{-32}$

$t =\frac{-138 +/-150.21}{-32}$

We discard the negative root because we want to find the time.

We have then:

$t =\frac{-138 -150.21}{-32}$

$t =\frac{-288.21}{-32} \\t=9$

Answer:

D. $0 = -16t^2 + 138t + 55; 9 s$

3 0

3 years ago