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2 years ago

Find the sum.(3x - 4) + (12x + 10)

Mathematics

2 answers:

love history [14]2 years ago

7 0

Answer:

hiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

guajiro [1.7K]2 years ago

3 0

Answer:

15x+6

Step-by-step explanation:

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Solve the equation (linear equation)<br><br> <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:

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

8 0

3 years ago

0.955 rounded to the nearest 10th of and inch

TiliK225 [7]

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3 years ago

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C = 4+0. 10t what is the charge to rent a paddle boat for 20 minutes?

Blababa [14]

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2 years ago

What is negative 5 squared?

fiasKO [112]

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3 0

3 years ago

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I will give you 10B points plus mark someone again for the Brainliest if you get this right.

Musya8 [376]

Answer:

Option D is the correct answer

Step-by-step explanation:

$(3 {m}^{ - 4} )^{3} (3 {m}^{5} ) \\ \\ = {3}^{3} {m}^{ - 4 \times 3} \times 3 {m}^{5} \\ \\ = 27 \times 3 \times {m}^{ - 12 + 5} \\ \\ = 81 {m}^{ - 7} \\ \\ = \frac{81}{ {m}^{7} }$

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3 years ago

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Find the sum.(3x - 4) + (12x + 10)​

Find the sum.(3x - 4) + (12x + 10)