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3 years ago

Is this correct? If not can I plz have the correct answer

Mathematics

2 answers:

andrezito [222]3 years ago

7 0

Answer:

3(x-7)=2/3(x+2)+2 |*3

9(x-7)=2(x+2)+2

9x-63=2x+4+2 |+63

9x=2x+69 |-2x

7x=69 |÷7

X=9.85

Tip: If you devide, Substract or Do anything else you have to Do it to both sides of the "="

Tomtit [17]3 years ago

6 0

Yes it is correct its right you have solved it correct

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Examine △ABC shown below. What is the measure of angle B?

zimovet [89]

Answer:

b = 57.6

Step-by-step explanation:

23 +3x +13 +2x=180

add the x's

add the others

23+13=36

subtract 36 on both sides

36-36=0

180-36= 144

now get your 5x and divide by 5 on both sides

5/5 cancels out

144/5= 28.8

x= 28.8

now to find b

2·28.8= 57.6

to find 3x do the same

3 · 28.8 = 86.4

now double-check your answer by adding them all up and seeing if it = 180

57.6+86.4+36=180

7 0

2 years ago

Can anybody help me solve this? You must solve for X first. I will mark as brainliest if there is an explanation.

masha68 [24]

Answer:

106 degrees

Step-by-step explanation:

Since all the angles add up to 360 degrees we can find the value of x first and then substitute that value into angle VUX (12x+10)

11x + 1 + 12x + 10 + 75 + 90 = 360

23x + 176 = 360

23x = 184

x = 8

when x = 8,

<VUX = 12x + 10 = 12(8) + 10 = 106 degrees

8 0

3 years ago

Read 2 more answers

LOOK AT THE PICTURE PLEASE ANSWER FAST

AlladinOne [14]

The answer is B. Would you like an explanation why?

7 0

2 years ago

If there are 100 tickets to a concert and 200 fans who would like to go to the concert, each placing a slightly different value

Setler79 [48]

It's more efficient to hold a random drawing because the probability is higher.
$\frac{100}{200} = \frac{1}{2}$
For every 2 person, 1 person gets to go to the concert.

Answer is 1/2 aka 0.5 aka 50%

Hope this helps. - M

3 0

3 years ago

Given <img src="https://tex.z-dn.net/?f=%20log_%7B2%7D%28x%29%20%20%3D%20%20%5Cfrac%7B3%7D%7B%20log_%7Bxy%7D%282%29%20%7D%20

Naily [24]

Answer:

$\displaystyle y = x^{-\frac{2}{3}}$

Step-by-step explanation:

Logarithms

Some properties of logarithms will be useful to solve this problem:

1. $\log(pq)=\log p+\log q$

2. $\displaystyle \log_pq=\frac{1}{\log_qp}$

3. $\displaystyle \log p^q=q\log p$

We are given the equation:

$\displaystyle \log_{2}(x) = \frac{3}{ \log_{xy}(2) }$

Applying the second property:

$\displaystyle \log_{xy}(2)=\frac{1}{ \log_{2}(xy)}$

Substituting:

$\displaystyle \log_{2}(x) = 3\log_{2}(xy)$

Applying the first property:

$\displaystyle \log_{2}(x) = 3(\log_{2}(x)+\log_{2}(y))$

Operating:

$\displaystyle \log_{2}(x) = 3\log_{2}(x)+3\log_{2}(y)$

Rearranging:

$\displaystyle \log_{2}(x) - 3\log_{2}(x)=3\log_{2}(y)$

Simplifying:

$\displaystyle -2\log_{2}(x) =3\log_{2}(y)$

Dividing by 3:

$\displaystyle \log_{2}(y)=\frac{-2\log_{2}(x)}{3}$

Applying the third property:

$\displaystyle \log_{2}(y)=\log_{2}\left(x^{-\frac{2}{3}}\right)$

Applying inverse logs:

$\boxed{y = x^{-\frac{2}{3}}}$

7 0

2 years ago