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Natalka [10]
3 years ago
12

Which expression is equivalent to -7(y-2)? a. -7y-2 b.-7y+2 c.-7y-14 d.-7y+14

Mathematics
1 answer:
seraphim [82]3 years ago
6 0

Answer:

D for doooooggggooooooo

Step-by-step explanation:

magiiccc

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Find a1 when d= - 1 and a7= -2
Pie

Answer:

  • a₁ = 4

Step-by-step explanation:

<u>Given</u>

  • d = - 1
  • a₇ = - 2

<u>Find</u> a₁

Use the nth term equation of AP

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Apply to the given case and solve for a₁

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5 0
2 years ago
Amtrak s annual passenger revenue for the years 1980 2000 is modeled approximately by the formula R = -40 |x - 11| + 990 where R
Alecsey [184]

Answer:

<h2>1986, 1996</h2>

Step-by-step explanation:

       Given, Annual passenger revenue for the years 1980 to 2000 id=s modeled with the formula R=-40|x-11|+990.

Here, R is the annual revenue in millions of dollars, x is the number of years since January 1, 1980.

       Revenue in a year was $ 790 million.

So, R=790\\-40|x-11|+990=790\\40|x-11|=200\\|x-11|=5\\x-11=5\text{ (or) }x-11=-5\\x=16\text{ (or) }x=6

       So, after 6 yrs and 16 yrs from January 1, 1980, the Passenger revenue equals $ 790 million.

∴ Passenger revenue equals $ 790 million in 1986 and 1996.

3 0
3 years ago
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