Answer: 87°
Step-by-step explanation:
Sum ange of a supplementary triangle is 180°
Therefore, to get the measure of the largest angle, we add the angles together and equate to 180 to get the value of x first.
18x - 7 + 12x + 9 + 4x = 180°
34x + 2 = 180°
34x = 180 - 2
34x = 178
Divide through by 34
x = ¹⁷⁸/₃₄
x = 5.24.
Now substitute for x to get the measure of the largest angle.
i. 18(5.24) - 7 = 87.32,° to the nearest degree = 87°
ii. 12(5.24) + 9 = 71.88°, to the nearest degree = 72°
iii. 4(5.24) = 20.96, to the nearest degree = 21°
The largest angle is 87°
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Answer:
I'm newbie here
Step-by-step explanation:
Elimination Method.
4x + 6/y = 15 → step 1
6x - 8/y = 14 → step 2
so,
4x + 6/y = 15 |×6|
6x - 8/y = 14 |×4|
24x + 6/y(6) = 90
24x - 8/y(4) = 56
24x + 36/y = 90
24x - 32/y = 56
____________ _
68/y = 34
68 = 34y
34y = 68
y = 2
subsitution y = 2 to..
4x + 6/y = 15
4x + 6/2 = 15
4x + 3 = 15
4x = 12
x = 3
So, for x is 3, and for y is 2
M < 2 and m < 3 are supplementary angles which add up to 180 degrees.
< 2 + < 3 = 180
3x + 17 + 5x - 21 = 180
8x - 4 = 180
8x = 180 + 4
8x = 184
x = 184/8
x = 23
m < 2 = 3x + 17 = 3(23) + 17 = 69 + 17 = 86 degrees
m < 3 = 5x - 21 = 5(23) - 21 = 115 - 21 = 94 degrees
m < 1 and m < 2 are corresponding angles....they are equal.
so m < 1 = 86 degrees <===
Answer:
4400
explanation:
so thr is 1760 yards in a mile half of that is 880 so 1760*2 plus 880 is 4400
hope this helps pls mark brainliest
Answer:79
Step-by-step explanation:
Since a triangle has a total of 180 degrees in the interior, you can subtract 22 from 180 to get 158.Because the triangle is isosceles, the 2 remaining angles have the same measure. All you need to do now is to divide 158 by 2.
You get 59.