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AleksAgata [21]
3 years ago
6

Can someone explain this plz and make sure u round to the nearest tenth

Mathematics
1 answer:
bonufazy [111]3 years ago
8 0

Step-by-step explanation:

According to figure,Taking angle 49° as reference angle,we have

b=26

h=x=?

Now,

\cos49  =  \frac{b}{h}  \\  \cos49   =  \frac{26}{x}  \\ 0.66 =  \frac{26}{x}  \\ 0.66x = 26 \\x =  \frac{26}{0.66}  \\ x = 39.39 \\ x = 39.4

<em><u>I </u></em><em><u>HOPE </u></em><em><u>THIS </u></em><em><u>WILL </u></em><em><u>HELP </u></em><em><u>U</u></em><em><u /></em><em><u /></em>

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Can you help me with numbers 20-22 please a lot of points
arsen [322]
We could find the slope with this formula
m = (y₂ - y₁)/(x₂ - x₁)
with (x₁,y₁) and (x₂,y₂) are the points that is located on the line.


NUMBER 20
Given:
(x₁,y₁) = (-2,3)
(x₂,y₂) = (7,-4)

Solution:
Input the points to the formula
m = (y₂ - y₁) / (x₂ - x₁)
m = (-4 - 3) / (7 - (-2))
m = -7 / (7+2)
m = -7/9

The slope of the line is -7/9


NUMBER 21
Given:
(x₁,y₁) = (-6,-1)
(x₂,y₂) = (4,1)

Solution:
Input the points to the formula
m = (y₂ - y₁) / (x₂ - x₁)
m = (1-(-1)) / (4 -(-6))
m = (1+1) / (4+6)
m = 2/10
m = 1/5

The slope of the line is 1/5


NUMBER 22
Given:
(x₁,y₁) = (-9,3)
(x₂,y₂) = (2,1)

Solution:
Input the points to the formula
m = (y₂ - y₁) / (x₂ - x₁)
m = (1 - 3) / (2 - (-9))
m = -2 / (2 + 9)
m = -2/11

The slope of the line is -2/11
6 0
3 years ago
Cubes are three-dimensional square shapes that have equal sides. What is the density of a cube that has a mass of 12.6 g and a m
Ymorist [56]
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<span>and this corresponds to choice (a)

</span>
7 0
4 years ago
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Solve x2 + 14x = -40 by completing the square.
zalisa [80]

Answer: C x=-4 and -10

Step-by-step explanation:

6 0
2 years ago
A carpenter has a board 400 inches long and 10 inches wide. He makes 5 identical shelves with the board and still has a piece of
Sedaia [141]
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3 0
3 years ago
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Hey I need a step by step of this!!! Or can you just explain to me how to figure it out step by step!! either is fine
Umnica [9.8K]

Answer:

I believe the answer may be x= 24.5 I'm not certain though

Step-by-step explanation:

The angles inside the triangle must all add up to 180 so we can subtract 80 from 180 to get 98. Now I'm assuming the two undefined angles are equal because of the two angle bisectors that create the second triangle. If I'm correct in assuming that them we can divided 98 by 2 to get 49 which would be the measurement of both bottom angles. Since there's a line bisecting both of them we would then cut that number in half to get 24.5. I hope this helped, I'm not fully certain of this answer though.

4 0
3 years ago
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