3 years ago

Please helpppppppppp

Mathematics

1 answer:

posledela3 years ago

6 0

Answer:

2 7 6

Step-by-step explanation:

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Solve the equation (linear equation) <img src="https://tex.z-dn.net/?f=8%5E%7B2x%2B7%7D%20%3D%20%28%5Cfrac%7B1%7D%7B32%7

Minchanka [31]

Answer: $x=-1$

Step-by-step explanation:

By the negative exponent rule, you have that:

$(\frac{1}{a})^n=a^{-n}$

By the exponents properties, you know that:

$(m^n)^l=m^{(nl)}$

Therefore, you can rewrite the left side of the equation has following:

$(\frac{1}{8})^{-(2x+7)}=(\frac{1}{32})^{3x}$

Descompose 32 and 8 into its prime factors:

$32=2*2*2*2*2=2^5\\8=2*2*2=2^3$

Rewrite:

$(\frac{1}{2^3})^{-(2x+7)}=(\frac{1}{2^5})^{3x}$

Then:

$(\frac{1}{2})^{-3(2x+7)}=(\frac{1}{2})^{5(3x)}$

As the base are equal, then:

$-3(2x+7)=5(3x)$

Solve for x:

$-6x-21=15x\\-21=15x+6x\\-21=21x\\x=-1$

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3 years ago

A cube with a side length s can be split into three congruent pyramids which formula represents the volume of a square pyramid

Assoli18 [71]

The volume of a triangular pyramid can be found using the formula V = 1/3AH where A = area of the triangle base, and H = height of the pyramid or the distance from the pyramid's base to the apex.

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3 years ago

As student received a 75% on an exam. If there were 20 questions on the exam which ratio would show the number of questions answ

sergejj [24]

75% times 20=15 so he got 15 correct

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3 years ago

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What equation shows the relationship between the profit function, cost function and revenue function?

vlabodo [156]

Profit function - Cost function = Revenue function

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3 years ago

Evaluate x+6 when x=7

Trava [24]

Answer:

Step-by-step explanation:

x + 6 = ?

[Replace x with 7]

7 + 6 = 13

3 0

3 years ago

Please helpppppppppp​

Please helpppppppppp