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2 years ago

Find the value of x.

Mathematics

1 answer:

andrey2020 [161]2 years ago

7 0

Answer:

sum of an exterior angle is 360

2x+56+85+57+4x=360

6x+198=360

6x=360-198

6x=162

x=162/6

x=27

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How would I solve this and where would I put the dots?

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3 years ago

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Define a function f on a set of real numbers as follows: f(x) = 3x − 1 x , for each real number x ≠ 0 Prove that f is one-to-one

dalvyx [7]

Answer with Step-by-step explanation:

We are given that

$f(x)=\frac{3x-1}{x}$

For each real number $x\neq 0$

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Proof:Let $x_1$ and $x_2$ be any nonzero real numbers such that

$f(x_1)=f(x_2)$

By using the definition of f to rewrite the left hand side of this equation

$f(x_1)=\frac{3x_1-1}{x_1}$

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$f(x_2)=\frac{3x_2-1}{x_2}$

Equating the expression then we get

$\frac{3x_1-1}{x_1}=\frac{3x_2-1}{x_2}$

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3 years ago

6x+2y=12 ( solve for y )<br> How do I show my work on a piece of paper would help a lot :)

igomit [66]

Answer:

y=6-3x

Step-by-step explanation:

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3 years ago

Which of the following shows the true solution to the logarithmic equation 3 log Subscript 2 Baseline (2 x) = 3

VARVARA [1.3K]

Answer:

x = 1

Step-by-step explanation:

We have to solve the given logarithmic equation of variable x.

The equation is $3\log _{2} (2x) = 3$

⇒ $\log_{2} (2x)^{3} = 3$

{Since, we know the logarithmic property, $a \log b = \log b^{a}$ }

⇒ $\log_{2} (2x)^{3} = 3\log_{2}2 = \log_{2} 2^{3}$

{Since we know that $\log_{a} a = 1$ }

Now cancelling log from both sides we get,

$(2x)^{3} = 2^{3}$

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⇒ x = 1 (Answer)

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3 years ago