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I am Lyosha [343]
3 years ago
12

Evaluate: 21°(3n + 7) = [?]

Mathematics
1 answer:
Basile [38]3 years ago
5 0
21(3n+7)=?
(63n+147)=? After multiplying
63/147=2.33333. After dividing 147/63 plz let me know if I’m wrong.

Answer: 21(3n+7)=2.33333
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First one to answer receives 100 points and brainiest!
larisa [96]

Answer and Step-by-step explanation:

<em>116 b.</em>

2^{10} = 1024\\2^8 = 256\\\\1024 + 256 = 1280\\\\\\2^5 = 32\\2^3 = 8\\\\32 - 8 = 24

1280 × 24 = 30720

<u>30720 ÷ 60 = 512. 512 is the solution; the expression is divisible by 60.</u>

<em>116 c.</em>

16^3 = 4096\\8^3 = 512\\\\4096 - 512 = 3584\\\\\\4^3 = 64\\2^3 = 8\\\\64 + 8 = 72

3584 × 72 = 258048

<u>258048 ÷ 60 = 4096. 4096 is the solution; the expression is divisible by 63.</u>

<em>116 d.</em>

125^2 = 15625\\25^2 = 625\\\\15625 + 625 = 16250\\\\\\5^2 = 25\\\\25 - 1 = 24

16250 × 24 = 390000

<u>390,000 ÷ 39 = 10,000. 10,000 is the solution; the expression is divisible by 39.</u>

<u></u>

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4 0
3 years ago
What statement statement is not true is not true
Black_prince [1.1K]
C is the answer because with this kind of math the answer can be Neg or Postive <span />
5 0
3 years ago
A CD usually sells for $14.00. If the CD is 10% off, and sales tax is 6%, what is the total price of the CD, including tax?
Vikki [24]
10% of 14 =1.4
14-1.4=12.6
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7 0
3 years ago
Choose the correct simplification of the expression (-9a^3b^2c^10)^0
Flauer [41]

Option C: 1 is the simplification of the expression \left(-9 a^{3} b^{2} c^{10}\right)^{0}

Explanation:

The given expression is \left(-9 a^{3} b^{2} c^{10}\right)^{0}

We need to simplify the given expression.

<u>Simplification:</u>

To simplify the given expression, let us apply the exponent rule, a^{0}=1 where a \neq 0

Thus, the the exponent rule a^{0}=1 means that any value (except zero) to the power of zero is equal to one.

Thus, the expression \left(-9 a^{3} b^{2} c^{10}\right)^{0} becomes,

\left(-9 a^{3} b^{2} c^{10}\right)^{0}=1

Therefore, the simplified expression is 1

Hence, Option C is the correct answer.

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PLEASE HELP!!!!! I WILL MARK YOU BRAINIEST
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Answer:

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Step-by-step explanation:

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