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Naily [24]
2 years ago
8

If f(x)=-3x-2, find f(-2)+9

Mathematics
1 answer:
mash [69]2 years ago
4 0

Answer:

13

Step-by-step explanation:

Replace the variable x with -2 in the expression.

f (-2) = -3 x -2 -2

Simplify (-3 x -2 -2) + 9

Multiply -3 by -2

6 - 2 + 9

Subtract 2 from 6

4 + 9

add 4 and 9

13.

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Answer:

Step-by-step explanation:

Total number of marbles = 5 + 2 + 3 = 10

Probability of choosing 1 green marble = 2/10

Probability of choosing 1 yellow marble = 3/10

Notice (and this is important) that the denominator didn't change. Why?

Because you replaced the first marble into the bag. That word replacement is critical in a problem of this nature. There is the term non replacement which means that the second draw would have a denominator of 9.

So what is the probability of P(green then yellow)?

P(green then yellow) = 3/10 * 2/10 = 6/100

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2 years ago
A sixth grade math student made this conjecture: every prime number can be expressed as the product of two prime numbers. Do you
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Answer:

No, I do not agree with the conjecture because 1 is not a prime number.

Step-by-step explanation:

A prime number is one that can be divided by 1 and itself only. Thus it can be expressed in 2 factors only, 1 and the number itself.

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So, 2 = 1 x 2

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Prime numbers must be expressed as the product of 1 and the number.

The conjecture that every prime number can be expressed as the product of two prime numbers is false. Because 1 is not a prime number, since it has no 2 factors.

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3 years ago
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Multiply 5x^2-6x+2 4x^2-3x
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Answer:

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Step-by-step explanation:

Multiply the two polynomials by multiplying each term

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8 0
3 years ago
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Some customers who rate their service as high quality return for additional services.

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Last year, the results showed that of the customers who reported high quality service, 20% returned for additional services.

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