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Serhud [2]
3 years ago
13

3. What is f(-3) if f(x) = |2x + 1] +5? (1 point) 0 10 12 or -10

Mathematics
1 answer:
kolbaska11 [484]3 years ago
8 0

If f(x) = |2x+1|+5, then f(-3) = |2(-3)+1|+5.  You replace all x's in the function with -3.

   \begin{aligned}f(-3) &= |2(-3)+1|+5\\[0.5em]&= |-6+1|+5\\[0.5em]&= |-5|+5\endaligned}

Finish by evaluating the absolute value and then adding that to the 5 that's behind the absolute value.

Can you finish it from there?

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The equation P = 16,250 + 75n can be used to determine the population, P, of a city after n years. Which statements are true? Se
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Answer:

15000+1250x

Step-by-step explanation:

Since the initial population is 15,000, we want to know how many people are going to Jonesville each year.  Assuming that in 2001 and in 2002, each year adds 1,250 people and that it is constant.  The equation is 15000+1250x in which 15,000 represents the initial number and 1250 is the amount of people added each year followed by x which is the number in years.

4 0
3 years ago
the plans for your 13th birthday party are well under way. your parents agree to your guest list of 400 people. you decided it w
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Answer:

11 people will get both the prizes.

Step-by-step explanation:

In this question we need to find common integral multiples of 5 and 7 under 400. As you can see in the figure 35th person is the first one to get both ipod and psp. The LCM (least common multiple) of 5 and 7 which is 35 (!!! <em>I hope you know how to LCM of two integers </em>).

Therefore the integral multiples of 35 will be same as the common multiples of 5 and 7. So, figuring out the number of integral multiples of 35 under 400 will give the answer.

To do that divide the number 400 with 35. On performing the division the quotient will be 11 and the remainder will be 15.

Therefore 11 persons out of 400 will get both the prizes.

Similarly if you want to find the number of person getting ipod then divide 400 with 5. The quotient will be 80. ∴ 80 people will get ipod.

And for psp, divide 400 with 7. The quotient will be 57. ∴ 57 people will get psp.

In these divisions, consider just the quotient, here remainder is of no use.

5 0
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25.56 is the surface area of the pool.

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(25+25+12+12) times 4.

A is never defined

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