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VashaNatasha [74]
3 years ago
11

Evaluate the expression 3.14(a2 + ab) when a = 4 and b = 2. (Input decimals only, such as 12.71, as the answer

Mathematics
2 answers:
ivolga24 [154]3 years ago
8 0
3.14((4^2)+(4)(2))
3.14(16+8)
3.14(24)
=75.36

You just want to plug in the values of a and b into the equation and solve using order of operations. Hope this helps!
liraira [26]3 years ago
7 0

Answer:

3.14((4^2)+(4)(2))

3.14(16+8)

3.14(24)

=75.36

You just want to plug in the values of a and b into the equation and solve using order of operations. Hope this helps!

Step-by-step explanation:

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Steps to solve:

-20 < 4 - 2x

~Subtract 4 to both sides

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12 > x

Best of Luck!

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Answer:

y = -x + 1

Step-by-step explanation:

eqn of line: y=mx+c

perpendicular, m1 x m2 = -1

m × 1 = -1

m = -1

y=-x+c

sub x=-5, y=6

6 = -(-5) +c

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c = 1

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In a survey from 1998, 449 teenagers were surveyed about the music that they listen to. Of these teenagers, 129 of them said tha
marshall27 [118]

Answer:

H0:p1=p2; Ha:p1≠p2, which is a two-tailed test.

Step-by-step explanation:

We formulate our hypotheses as

H0:p1=p2; Ha:p1≠p2, which is a two-tailed test.

Supposing the probability or proportion of the first survey is equal to the probability or proportion of the second survey. This will be the null hypothesis and the alternative hypotheses would be that these two proportions or probabilities are unequal.

This is a two tailed test.

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Answer:

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Step-by-step explanation:

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Read 2 more answers
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