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Rasek [7]
3 years ago
5

Pls help me find the operations of 3a^2+4a^2+7a^2​

Mathematics
2 answers:
Ber [7]3 years ago
7 0

Answer:

14a^2

Step-by-step explanation:

3a^2+4a^2+7a^2

Combine like terms

Factor out a^2

a^2(3+4+7)

a^2(14)

14a^2

Maru [420]3 years ago
4 0

Answer:

14 a²

Step-by-step explanation:

3a² + 4a² + 7a²

collect like terms

(3 + 4 + 7)a² .. ( factor out :- a²)

calculate the sum

14 a²

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VikaD [51]

Answer:

a¹⁰

Step-by-step explanation:

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7 0
3 years ago
You invest $1,200 in an account that pays an interest rate of 7.25%, compounded continuously.
hammer [34]
The answer is $1,809.00.

Explanation:

To calculate interest rate, you must multiply the decimal version of the percentage by the original number. 7.25% as a decimal is equivalent to 0.0725, so multiplying that by 1,200 = 87. Now we must multiply that by 7 to find the amount after 7 years. The product is 609, or $609. Now we add that amount to the original number (1,200). The sum is 1809, $1,809. Therefore, your total balance after 7 years is $1,809.

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3 years ago
Read 2 more answers
-2/7 divided by (-8/21)
iogann1982 [59]

Answer:

\frac{1}{12} or 0.08333...

Step-by-step explanation:

To divide by a fraction, multiply the first fraction by the opposite of the second fraction, or the reciprocal.

\frac{-2}{7} / \frac{-8}{21}  = \frac{-2}{7} * \frac{21}{-8}  = \frac{1}{3} * \frac{1}{4}  = \frac{1}{12}

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Vinil7 [7]

Answer:

D. -14, -6, 2, 10, ...

Step-by-step explanation:

Plug in the values for x.

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The square root of 12 is irrational.<br> True<br> False
Rzqust [24]
True the square root of 12 is irrational
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