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PilotLPTM [1.2K]
3 years ago
11

What is the solution set of the equation x²+2x-24=0?

Mathematics
2 answers:
kirill115 [55]3 years ago
5 0
Simple...

you have x^{2} +2x-24=0

AND WORK IS ATTACHED!! :D

Montano1993 [528]3 years ago
4 0
The correct answer is x=6
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I believe it's 3 months because 12 divided by 4 is 3.
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X÷79 + 72 - 18 hellppppp​
tino4ka555 [31]

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1/5688x-18

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2 years ago
Find the quotient. Write your answer in standard form. 2+i/2-i
xeze [42]
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2 years ago
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A rectangular prism has a base area of 56 square feet and a volume of 840 cubic feet. The length of the base is longer than the
katovenus [111]
The answer is 8 ft.

The base area of rectangular prism is: A = l * w = 56 ft²
<span>The length of the base is longer than the width: l > w

The volume of the prism is: V = l * w * h = 840 ft</span>³
<span>The sum of the length and width of the base is equal to the height of the pyramid: l + w = h

So:
</span>l * w = 56
l * w * h = 840
___
56 * h = 840
h = 840 / 56
h = 15 ft

Now, we know that
l + w = 15         ⇒ w = 15 - l
l * w = 56
___
l * (15 - l) = 56
15l - l² = 56
0 = l² - 15l + 56

Or: l² - 15l + 56 = 0

Let's solve the quadratic function:
l = (-b +/-√(b² - 4ac)/(2a)
  = (15 +/-√(-15)² - 4 * 1 * 56))/(2*1)
  = (15 +/- √(225 - 224))/2
  = (15 +/- √1)/2
  = (15 +/-1)/2
 
l = (15+1)/2 = 16/2 = 8
or
l = (15-1)/2 = 14/2 = 7

If l = 8, then w = 15 - 8 = 7.    So, l > w
If l = 7, then w = 15 - 7 = 8.     So, l < w

Therefore, l = 8 ft.
6 0
3 years ago
Find the midpoint between the points (-4, 2) and (-6, -2)
Zielflug [23.3K]

Answer:

c (-5, 0)

Step-by-step explanation:

midpoint formula:

( \frac{x1 + x2}{2} ) \: and \: ( \frac{y1 + y2}{2} )

x1 =  - 4\\ x2 =  - 6 \\ x1 + x2 =  - 4 +  - 6 \\  =  - 10

\frac{ - 10}{2}  =  - 5

y1 =  2 \\ y2 =  - 2 \\ y1 + y2 = 2 + ( - 2) \\  = 0

so, -5 is x and 0 is y. the answer is C.

8 0
3 years ago
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