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dezoksy [38]
3 years ago
12

Find the value of x. I need help please!

Mathematics
1 answer:
Blababa [14]3 years ago
8 0

Answer:

24

Step-by-step explanation:

Keep in mind that exterior angles are mentioned. So let's find the interior ones. Note that the interior and exterior angles are forming straight lines. So something plus 84 equals 180 degrees.  

180-84=96

180-120=60

The sum of three angles of a triangle is 180 degrees. X is an angle. So we can form an equation to represent this. Then just solve for x!

96+60+x=180

156+x=180

     x=24

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Can someone help me figure this out no guessing
laiz [17]
Your answer is x = 2.92 = 3.
To answer this question you need to use trigonometry, so the first step is to identify the hypotenuse, opposite, and adjacent.
Because the angle 73 is in the bottom corner next to the length x, we know that the length x is the adjacent. The length 10 is opposite the right angle so this must be the hypotenuse.
We know that cos(θ) = adjacent/hypotenuse, so we can substitute in what we know:
cos(θ) = adjacent/hypotenuse
cos(73) = x/10
Now we can rearrange for x:
cos(73) = x/10
× 10
cos(73) × 10 = x
Finally we just type this into the calculator and get the answer as 2.92 or 3.
I hope this helps!
5 0
3 years ago
Jo says she can find the percent equivalent of 3/4 by multiplying the percent equivalent of 1/4 by 3.how can you use a percent b
WINSTONCH [101]
  The percent equivalent to 1 / 4 = 25 %.
  The percent equivalent to 3 / 4 = 75 %.
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5 0
3 years ago
AB is included between--------
nirvana33 [79]

Answer:

B) ∠A and ∠B

Step-by-step explanation:

AB is the line segment formed with endpoints at A and B.  This means it lies between the angle with vertex at A, ∠A, and the angle with vertex at B, ∠B.

5 0
3 years ago
Read 2 more answers
5. If the covariance between the variables x and y is 18 and the variance
klasskru [66]

Answer:

The coefficient of  correlation=0.5

Step-by-step explanation:

We are given that

Covariance between the variable  x and y=18

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Variance of y=81

We have to find the coefficient of correlation

We know that

Coefficient of correlation

r=\frac{covariance(x,y)}{\sqrt{variance(x)}\times \sqrt{variance(y)}}

Using the formula

r=\frac{18}{\sqrt{16}\times \sqrt{81}}

r=\frac{18}{4\times 9}

r=0.5

Hence, the coefficient of  correlation=0.5

5 0
3 years ago
I have 12 tiles, 3 red, 6 green, and 3 blue. What's the probability in decimal form that I pick a green tile out of the bag?
Bond [772]
You have a 50% chance of picking a green tile so your answer would be 0.5
6 0
3 years ago
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