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3 years ago

Find the value of x -7x + 4x = 9

Mathematics

2 answers:

uysha [10]3 years ago

5 0

I think it’s -1.2222222222222

hram777 [196]3 years ago

3 0

Answer:

it is -79 + 41 = 9 i tried please give me brainlest

Step-by-step explanation:

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I NEED HELP AGAIN PLEASE GIVE ANSWER AND EXPLANATION!!!<br><br> m + 4 < - 3

creativ13 [48]

463 is the answer because-3 m + 4 would equal 463

4 0

3 years ago

What is 4 x 4 x 4 x 4 x 4 x 4 in exponential notation?

Norma-Jean [14]

Answer:

$4^{6}$

4096

Step-by-step explanation:

i tried

6 0

2 years ago

Read 2 more answers

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.

In conclusion, if $2^n+1$ is an odd prime, then n must be a power of 2.

4 0

3 years ago

What is the midpoint of 16 1/4 above sea level and 12 3/4 below sea level

anzhelika [568]

Answer: 1 3/4 above sea level

the midpoint of 16 1/4 above sea level and 12 3/4 below sea level is 1 3/4 above sea level

Step-by-step explanation:

I made a line graph and brought each side closer and closer until i stopped at the middle point

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2 years ago

What is the name of the shape depicted in the graph below?

dusya [7]

The name of the shape depicted in the graph below is rose, so the answer is A.

<h3><u>Graphs</u></h3>

A rose is a flat curve resembling a symbolic image of a flower. Geometrically, it is the algebraic or transcendent curve whose graph is characterized by a series of windings around a central point.

In the best known cases, these windings produce figures in the shape of a rose window, from which its name derives from.

Learn more about graphs in brainly.com/question/14375099

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2 years ago