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Fantom [35]
4 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
1 answer:
raketka [301]4 years ago
7 0

Replace a and b with the given values:

3.14(3^2 + 3x4)

Simplify:

3.14(9 +12)

3.14(21)

Multiply:

3.14 x 21 =65.94

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(2x ^ 9 * y ^ n)(4x ^ 2 * y ^ 10) = 8x ^ 11 * y ^ 20
olga55 [171]

Answer:

solution is n= 2

Step-by-step explanation:

for the exponents for y

n + 10 =20

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3 years ago
What is the diagonal of asquare with length 3cm​
Damm [24]

Answer:

3√2

Step-by-step explanation:

If you draw the diagonal, you have a 45°45°90° triangle.

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3 years ago
Help algebra 2 please
iogann1982 [59]

Step-by-step explanation:

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3 0
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Read 2 more answers
Which number line best shows how to solve −8 − (−2)? (5 points)
aliya0001 [1]

A number line from negative 10 to 10 is shown, with numbers labelled at intervals of 2. An arrow is shown from point 0 to negative 8. Another arrow points from negative 8 to negative 6. Therefore, option C is the correct answer.

<h3>What is a number line?</h3>

A number line is a straight line with numbers placed at equal intervals. Positive numbers are placed to the right of 0 and negative numbers are placed to the left of zero.

When a number (x) is added x unit is moved to the right while if a number (x) is subtracted x unit is moved to the left.

Now, solve -8 - (-2)

= -8 + 2=-6

So, a number line from negative 10 to 10 with numbers labelled at intervals of 2. An arrow is shown from point 0 to negative 8 then since 2 is added, we move 2 units right from negative 8 to negative 6.

Therefore, option C is the correct answer.

To learn more about the number line visit:

brainly.com/question/13189025.

#SPJ1

6 0
2 years ago
Find the indicated arc length. 11/6
soldi70 [24.7K]

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5 0
3 years ago
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