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3 years ago

Help me with this plsssssssssss

Mathematics

2 answers:

sesenic [268]3 years ago

8 0

Answer:

A) $756^{in\\2\\}$

B) Box A and Box B both have the same surface area $756^{in\\2}$

Step-by-step explanation:

Hoped I helped

telo118 [61]3 years ago

3 0

A- 756 in^2
B- Box A and Box B both have the same surface are

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valina [46]

Answer:

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Step-by-step explanation:

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4 years ago

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3 years ago

How will you write 5 × 5 × 5 × 5 × 5 as an exponential expression?

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3 years ago

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If 2^n + 1 is an odd prime for some integer n, prove that n is a power of 2. (H

vovikov84 [41]

Step-by-step explanation:

We will prove by contradiction. Assume that $2^n + 1$ is an odd prime but n is not a power of 2. Then, there exists an odd prime number p such that $p\mid n$ . Then, for some integer $k\geq 1$ ,

$n=p\times k.$

Therefore

$2^n + 1=2^{p\times k} + 1=(2^{k})^p + 1^p.$

Here we will use the formula for the sum of odd powers, which states that, for $a,b\in \mathbb{R}$ and an odd positive number $n$ ,

$a^n+b^n=(a+b)(a^{n-1}-a^{n-2}b+a^{n-3}b^2-...+b^{n-1})$

Applying this formula in 1) we obtain that

$2^n + 1=2^{p\times k} + 1=(2^{k})^p + 1^p=(2^k+1)(2^{k(p-1)}-2^{k(p-2)}+...-2^{k}+1)$ .

Then, as $2^k+1>1$ we have that $2^n+1$ is not a prime number, which is a contradiction.

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3 years ago

What is the best first step to solve the inequality 5x - 3 ≥ 2?

Kryger [21]

Answer:

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Step-by-step explanation:

5x -3>2

+3. +3

5x>5

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3 years ago

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