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7nadin3 [17]
3 years ago
13

One of the solutions to x2 − 2x − 15 = 0 is x = −3. What is the other solution?

Mathematics
1 answer:
gladu [14]3 years ago
3 0

Answer: x = 5

Step-by-step explanation:

x² - 2x - 15 = 0

x² + 3x - 5x - 15 = 0

x(x + 3) - 5(x + 3) = 0

Therefore, x + 3 = 0

x = 0 - 3 = -3

Also, x - 5 = 0

x = 0 + 5 = 5

Therefore, the solutions to x² - 2x - 15 = 0 is x = -3 and x = 5. Therefore, the correct option is D.

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Answer:

203.20 millimeters

Step-by-step explanation:

StartFraction 8 inches Over question mark millimeters EndFraction = StartFraction 40 inches Over 1,016 millimeters

8 inches / ? Millimeters = 40 inches / 1,016 millimeters

8 × 1,016 = ? × 40

8,128 = 40?

Divide both sides by 40

? = 8,128 / 40

= 203.20

? = 203.20 millimeters

There are 203.20 millimeters in 8 inches

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Brianna can buy 14 pencils for $1.50 at the school store. At that rate, about how much would 100 pencils cost?
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Answer:

we conclude that the cost of 100 pencils = $11

Step-by-step explanation:

Brianna can buy 14 pencils for $1.50 at the school store.

so

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Infinity - infinity?
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Answer:

3443            

 ———— =<u><em> C. 202</em></u>

  17      

Step-by-step explanation:

Step  1  :

                  3443

Simplify   ————

                      17

Final result :

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  17              

Processing ends successfully

plz mark em as brainliest :)

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