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pshichka [43]
3 years ago
9

What is the value of the function y = 3x - 1 when x = –1?

Mathematics
2 answers:
VashaNatasha [74]3 years ago
7 0
Y=3x-1
y=3(-1) - 1
y= -3-1
y=-4 
the answer is B.-4
alexgriva [62]3 years ago
5 0
B
There is your answer
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Answer:

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Step-by-step explanation:

<u>This is going to be an arithmetic progression:</u>

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<u>So the first term is </u>

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<u>and the common difference is </u>

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<u>Sum of AP is:</u>

  • S = (a₁ + aₙ)*n/2 = (2a₁ + (n - 1)d)*n/2

<u>Substitute and solve for n:</u>

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<u>Solving we get a positive root of:</u>

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3 years ago
Each morning Daniel runs 5 miles in 45 minutes. If he keeps the same pace, how will it take him to run 8.5 miles?
Alex73 [517]

Answer:

Approximately 57 minutes.

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An hour = 60 mins so

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10/3 · 17 = 56.6666667

also known as 56.67 minutes if rounded to hundreds, 56.7 minutes if rounded to the tenths, and 57 minutes if rounded to a whole number.

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