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Maurinko [17]
3 years ago
14

1. f (I) = 2x – 12, find f (-3) and f (0)

Mathematics
1 answer:
OleMash [197]3 years ago
7 0

Answer:

1.f(-3)=-18 f(0)=-12

2.function notation is the way a function is wiritten

3.q=3

Step-by-step explanation:

1.we just need to put the numbers into the brackets and the calculate.

3.we can get -4q+10=-2   -4q=-12 so q=3

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The inequality would start out looking like this:
-30\ \textless \  \frac{5}{9} (F-32)\ \textless \ 130
Now it's just a matter of solving the inequalities simultaneously. Get rid of the fraction by multiplying everything by 9:
-270\ \textless \ 5(F-32)\ \textless \ 1170
Then distribute the 5 into the parenthesis:
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Now add 160 everywhere:
-110\ \textless \ 5F\ \textless \ 1330
and finally divide everything by 5:
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3 years ago
Brooke and Lamont ran a half marathon. Brooke finished in 1 hour 40
Paha777 [63]

Answer:

B. Brook finished in 100 minutes, so Lamont was faster.

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1 hour = 60 Minutes

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3 years ago
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nika2105 [10]

Answer:

Inverse of cosine (StartFraction StartRoot 3 EndRoot Over 2 EndFraction)

Step-by-step explanation:

According to trigonometry identity;

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The arccos will cancel out the cos on the left hand side of the equation to have;

30° = cos^-1(√3/2)

Hence 30° is equivalent to inverse of cosine of √3/2 or Inverse of cosine (StartFraction StartRoot 3 EndRoot Over 2 EndFraction)

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