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3 years ago

What two numbers multiply to negative 18 and add to negative 3

1 answer:

6 0

-3 and 6

-3 x 6 = -18
-3 + (6) = 3

 x2 + 3x - 18 = 0


 (X - 3 ) (X + 6)

To summarize, since -3 and 6 multiply to -18 and add up 3, you know that the following is true:

 x2 + 3x - 18 = (X - 3 ) (X + 6)

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Which of these expressions is equal to 2(43 - p)?

nirvana33 [79]

Answer:

C. (2×43) - (2×p)

Step-by-step explanation:

The question is 2(43-p)

Which means 2 is multiplying the bracket.

So the answer to the question is 2×43 - 2×p

Which will give us 86 - 2p

So you then solve all the possible answers to see if it the same answer as the one we got

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3 years ago

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allsm [11]

Answer:

8 is the right answer

Step-by-step explanation:

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3 years ago

I dont understand how to simplify an expression with exponents

Mashutka [201]

Answer:

3^4

Step-by-step explanation:

Simplifying an expression with expression with exponents:

If they are dividing, we keep the base and subtract the exponents. For example:

$\frac{a^x}{a^y}=a^{x-y}$

In this question:

$\frac{3^2}{3^{-2}}=3^{2-(-2)}=3^{2+2}=3^4$

8 0

1 year ago

Joe travels at a constant speed of 80 miles per hour for ten hours. How many miles will he travel in ten

ratelena [41]

Answer:

1287.48 km

Step-by-step explanation:

80 miles = 128.748 km

Distance = Speed x Time

Putting in 'x' for distance

x = 80*10

x = 800 miles

x = 1287.48 km

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3 years ago

Milton needs to find the product of two numbers. one of the numbers is 9. The answer also needs to be 9. how will he solve this

galben [10]

The answer to this problem is one because nine times one equals nine which the answer is still nine

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3 years ago