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Sati [7]
2 years ago
7

What is the factored form of the expression x^2-2x-15?

Mathematics
1 answer:
Dimas [21]2 years ago
5 0

Answer:

(x-5)(x+3)

Step-by-step explanation:

<u>Factor by grouping</u>

<u />x^2-2x-15\\x^2+3x-5x-15\\x(x+3)-5(x+3)\\(x-5)(x+3)

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Without multiplying, determine the sign of the product (−247,634)(183,758).
ycow [4]

Answer:

Negative

Step-by-step explanation:

It would be a negative number because a postive number multiplied by a negative number always equals a negative number

7 0
2 years ago
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A caterer makes 3 extra sandwiches for every 20 sandwiches for a customer order. Write the ratio of ordered sandwiches to extra
BaLLatris [955]

Answer:

8 sets of twenty sandwiches.

Step-by-step explanation:

first you find the answer to 3 x __ = __ lets make the answer 24. That makes the other blank 8. Now subtract 24 from 184 and you should get 160. Divide 160 by 20 and you'll get how many set the customer ordered of twenty sandwiches. Multiply by twenty and you will get the whole amount they ordered.

8 0
3 years ago
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Describe the explicit formula?
lukranit [14]

Answer:

  • its to a power so it is an exponential power
5 0
3 years ago
How many passengers can the roller coaster take around the track per minute?
Setler79 [48]

Answer:

162 passengers

Step-by-step explanation:

A roller coaster can take 162 passengers around the track in 9 minutes. The roller coaster operates at a constant rate.

5 0
3 years ago
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PLEASE HELP. I'LL GIVE BRAINLIEST.
vova2212 [387]
<h2>Answer:</h2>

The answer is 16.

<h2>Step-by-step explanation:</h2>

Since the 8x is positive, the equation  must have y as a positive number.

Let's see this!

An easy way to complete the square if you have the constants for x2 and

But not the non-variable number is to divide the x constant, and then square it.

Example:

\frac{8x}{2} \\\\4^2=16\\

The last number must be 16. Let's check it.

(x+4)^2=x^2+8x+16

6 0
2 years ago
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