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iVinArrow [24]
3 years ago
10

A right triangle has an angle that measures 13.9 degrees. What is the missing angle measure?

Mathematics
1 answer:
AleksAgata [21]3 years ago
8 0

Answer:

76.1

Step-by-step explanation:

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Given that x=3sin​​θ-2 and y=3cos​​​θ+4.Show that (x+2)²+ (y-4)²=9​​​​​​
asambeis [7]

Answer:

First, plug-in x and y as 3sin​​θ-2 and 3cos​​​θ+4 into the equation, respectively:

((3\sin (\theta)-2)+2)^2 + ((3\cos (\theta)+4)-4)^2 = 9

Then, +2 and -2 cancel out and +4 and -4 cancel out as well, leaving you with:

(3\sin(\theta))^2+(3\cos(\theta))^2=9

We can factor out 3^2 = 9 from both equations:

9(\sin(\theta)^2+cos(\theta)^2) = 9

We know from a trigonometric identity that \sin(\theta)^2+cos(\theta)^2 = 1, meaning we can reduce the equation to:

9(1) = 9

9=9

And therefore, we have shown that (x+2)^2 + (y-4)^2 = 9, if x=3sin​​θ-2 and y=3cos​​​θ+4.

Hope this helped you.

7 0
3 years ago
The graph shows how many sandwhiches can be made from diffrent numbers of loaves of bread. what is the slope of the graph?
ki77a [65]

Answer:

a

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is the area of the polygon?
Delvig [45]
Find the area of the triangle on top
A=(.5)(Base)(Height)
A=(.5)(15)(9)
A=67.5

In the rhombus below you can move the corner triangle to the other side to transform it into a rectangle with a sides of 7 and 15.  so lets find the area of this rectangle
A=L*W
A=15*7
A=105

now combine the two areas
67.5+105
172.5
so answer "C"
6 0
3 years ago
What is the value of 120? o​
omeli [17]
The answer would be 4 since u would have to split 129 to 60 divide by 15 to get 4
5 0
3 years ago
PLEASE HURRY IM TIMED
Lorico [155]

Answer:

Step-by-step explanation:

The numbers in the ratio 344 to 111 are written in the wrong order.

8 0
3 years ago
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