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SSSSS [86.1K]
3 years ago
12

Evaluate the expression 3.14(a2 + ab) when a = 3 and b = 4. (Input decimals only, such as 12.71, as the answer.)

Mathematics
2 answers:
GenaCL600 [577]3 years ago
6 0
3.14(3^2 +3(4)
3.14(9+12)
3.14(21)
65.94
Leokris [45]3 years ago
5 0
Substitute a and b and solve

3.14• (3•3+3•4)= 3.14• 21= 65.94
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Answer:

Step-by-step explanation:

Box plot is enclosed.

To find out 5 number summary

3.0, 3.5, 4.5, 5.5, 6.5, 6.5, 7.0, 7.0, 7.0, 7.0, 7.0, 7.5, 8.0, 9.0, 9.0, 9.0, 9.5, 9.5, 9.5, 9.5}

Minimum: 3.0

Quartile Q1: 6.5

Median: 7

Quartile Q3: 9

Maximum: 9.5

Besides we find that

Average (mean): μ=7.25

Absolute deviation: 30.5

Mean deviation: 1.525

Minimum: 3.0

Maximum: 9.5

Variance: 3.7125

Standard deviation σ=1.926

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3 years ago
a lady purchased a question for $68 if the jacket was on sale for 20% off what was the original price of the jacket
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Answer:

$85

Step-by-step explanation:

100%-20%=80% and 80% = 0.8

So,

0.8x=68

x=85

8 0
4 years ago
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Identify the graph of the equation. What is the angle of rotation for the equation?
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Step-by-step explanation:

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4 years ago
Which best describes the relationship between the lines with equations -36x + 8y = 16 and
My name is Ann [436]

Hi there! :)

Answer:

The lines are the same.

Step-by-step explanation:

Begin by converting each equation into its simplest form in slope-intercept form:

-36x + 8y = 16

Move the "x" variable to the right side of the equation:

8y = 36x + 16

Divide all terms by 8:

y = 36/8x + 16/8

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Move "x" variable:

2y = 9x + 4

Divide both sides by 2:

y = 9/2x + 2

Both of the equations are equivalent, meaning both of the lines are the same.

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Bas_tet [7]

Answer:

y-intercept (0,1)

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Step-by-step explanation:

If a table represents an exponential function of the form  y=b^x, then the y-value that corresponds to x=0 is 1.

In other words, the y-intercept (0,1) must be present in the table.

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In other words the multiplicative rate of change from the table must be equal to b.

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