3 years ago

Solving for the missing side of the triangle , please help

Mathematics

1 answer:

Zielflug [23.3K]3 years ago

6 0

Answer:

C=78

Step-by-step explanation:

first add 72 and 30 you get 102 then subrtract 102 from 180 and youll get your answer of 78

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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

4 years ago

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aleksklad [387]

Answer:

A=59 because it is opposite of E

B= 39 because 180-141=39

C=82 because 180-39-59=82

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3 years ago

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cluponka [151]

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How to find the legs of a right triangle with only the hypotenuse?

GuDViN [60]

Let x = legs of right triangle.

The set up would be:

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3 years ago

If a 6 pack of Hershey bars is on sale for 89cents what is the cost of each bar

QveST [7]

Answer:

About each bar is 15 cents

Step-by-step explanation:

you have to divide 6 by .89

.89÷6= .1483

You have to round your decimal to the nearest hundredth and .1483 is closer to .15

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4 years ago