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sergiy2304 [10]
3 years ago
8

Find the value of x.

Mathematics
1 answer:
joja [24]3 years ago
3 0

Answer:

x=45

Step-by-step explanation:

The angles are supplementary

45+3x=180

-45

3x=135

divide by 3

x=45

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Write 12x+6y=18 In A Slope-Intercept Form.
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Answer:

6y=12x+18

Step-by-step explanation:

Y=Mx+b

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0 A maker of a certain brand of low-fat cereal bars claims that the average saturated fat content is 0.5 gram. In a random sampl
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Answer:

<em>The first step is to determine the average </em>

x= \frac{0,6+0,7+ 0,7+0,3+0,4+ 0,5+ 0,4 +0,2}{8}\\\ x= 0,475

<em>The exercise says it’s a normal distribution: (n=8)</em>

s^{2}= \frac{1}{n-1} ((0,6.x)^2+2(0,7-x)^2+(0.3-x)^2+2(0.4-x)^2+(0.5-x)^2+(0.2-x)^2)\\\ \frac{1}{7}*0,235 = 0,0336 \\\\ s= 0183

<em>According to the exercise, the mean is equal to 0,5 then the value of t of the distribution can be obtained </em>

<em />

t= \frac{x-u}{\frac{s}{\sqrt{n} }}\\\ t= \frac{0,475 - 0,5}{0,183}\\\  t= -0,3860

<em>The variable t has 7 grade to liberty, we calculate the p-value as: </em>

2* P(t < - 0,3860)= \\\ 2* 0,3554 = 0,7108

This value is very high, therefore the hypothesis is not rejected

7 0
3 years ago
Find all solutions of the equation in the interval [0°, 360°). cos(x) = -1 ​
nika2105 [10]

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180°

Step-by-step explanation:

cos(x) = - 1 has only 1 solution in the required interval , that is

x = cos^{-1} (- 1) = 180°

7 0
3 years ago
If sin(A - 30) = cos 60°, the number of degrees in the<br> measure of angle A is
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Step-by-step explanation:

5 0
2 years ago
Please help me thank you.
IrinaVladis [17]
I believe the answer is 1. hope that helped
8 0
3 years ago
Read 2 more answers
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