Complementary = angles add up to 90.
two angles are (x+3) and (4x-8)
Therefore:
90 = (x+3) + (4x-8)
Solve for x.
90 = (x+3) + (4x-8)
90 = 5x - 5
95 = 5x
/5 /5
19 = x
Therefore the value of x = 19
Answer:
breadth = 25m
length= 35m
Step-by-step explanation:
perimeter is distance all round a figure
in a rectangle we have two pairs of opposite but equal lines
breadth = 2x( because of the two breadths in a rectangle) - 20
length = 2x( because of the two lengths in a rectangle)
perimeter = 2x + 2x - 20
120 = 4x - 20
120 + 20 = 4x
140 = 4x
35 = x
to get the dimensions, we have to divide by 2 as we took both parts of each dimension
breadth =<u> 2x - 20</u>
2
<u>=2(35) - 20</u>
2
<u>= 70 - 20</u>
2
<u>= 50m</u>
2
= <u>25m</u>
length =<u> 2x</u>
2
<u>= 2(35)</u>
2
<u> = 70m</u>
2
= <u>35m</u>
<u />
Answer:
D} sin theta cos theta
Step-by-step explanation:
Edge
Recall that
Angle is acute, which means its measure is between 0 and 90 degrees. For , we have , so we should take the positive root. Then
(9-15)/(-2+4)= -6/2 = -3
-3 is the slope