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NARA [144]
3 years ago
9

Will give brainliest if correct

Mathematics
1 answer:
zaharov [31]3 years ago
6 0

Answer:

8x+140=180

8x=40

x=5°

Step-by-step explanation:

Sum of angles in a straight line=180°

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The daily sales at a convenience store produce a normal distribution with a mean of $1,250 and a standard deviation of $125. The
timama [110]

Answer:

0.6844 is the required probability.        

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = $1,250

Standard Deviation, σ = $125

We are given that the distribution of daily sales is a bell like shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

We have to find

P(sales less than $1,310)

P( x < 1310) = P( z < \displaystyle\frac{1310 - 1250}{125}) = P(z < 0.48)

Calculation the value from standard normal z table, we have,  

P(x < 1310) =0.6844= 68.44\%

0.6844 is the probability that sales on a given day at this store are less than $1,310.

4 0
3 years ago
Evaluate if x=-4 and y=13 3(2x- y)
Katena32 [7]

Answer:

-63

Step-by-step explanation:

6x - 3y

= 6 × -4 - 3 × 13

= -24 - 39

= -63

8 0
3 years ago
Geometry question any help is appreciated!!
tangare [24]
For this question, the equation I got was (x+3)^2 + (y-6)^2 = r^2.
4 0
3 years ago
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Plz help I’ll give brainlest :) you need to find the slope
zavuch27 [327]
The slope is -2 over 3 or -2/3 i think
6 0
3 years ago
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a student says that VW and VZ are opposite rays because they have the same endpoint. Describe the error.
Nitella [24]
It is not enough to describe the oppostite rays only with the statement that they have the same endpoint. Besides the same endpoint opposite rays are characterized with opposite drection. 
So, the student should answer: VW and VZ are opposite rays because they have the same endpoint and the the opposite direction. 
3 0
3 years ago
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