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3 years ago

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:

34kurt3 years ago

6 0

3.14(a2+ab)
3.14(3(2)+3(4)
3.14 +6+12
3.14+18
21.14 I think that's it sorry if it's not.

Alex777 [14]3 years ago

6 0

Answer:its like a by the power 2

Step-by-step explanation:

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2 years ago

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2 years ago

A U.S. dime has a thickness of 1 7/20 millimeters. Gary has a stack of dimes 78 3/10 millimeters tall. How many dimes does he ha

Dahasolnce [82]

Answer:

58 number of dimes.

A. $5.8

B. 131.602 grams.

Step-by-step explanation:

A U.S. dime has a thickness of $1\frac{7}{20} = 1.35$ mm.

Now, Gary has a stack of dimes that is $78\frac{3}{10} = 78.3$ mm in height.

Therefore, Gary has $\frac{78.3}{1.35} = 58$ dimes in total.

A. Now, each dime is equivalent to $0.1.

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3 years ago

What is the distance between (2,7) and(4,2)

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$d = \sqrt{ ({2 - 4})^{2} + ({7 - 2})^{2} }$

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2 years ago

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Answer:

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