Answer:
C. 700 km/hour
Step-by-step explanation:
Isosceles triangle has 2 sides that are the same length. So what you have is three sides that measure: x, x, and (x-8). 70 = x + x + (x-8).
70 = x + x + x - 8
78 = 3x
x = 26.
and 26 - 8 = 18.
So two of your sides are 26 inches and the last side is 18 inches.
Answer:
45.05
Step-by-step explanation:
40.45-(-4.6)
40.45
Step-by-step explanation:
y-4 = 5x -40
-5x + y = -36
y = -3/5x + 2
y-2 = -3/5x
5y - 10 = -3x
3x + 5y = 10
If complementary then sum of the angles = 90
#54
3x + 16 +4x-3 = 90
7x-13=90
7x = 90-13
7x = 77
x = 11
m<A=3x + 16 = 3(11) + 16 = 49
m<B = 4x - 3 = 4(11)-3=41
#55
4x-2+7x+4=90
11x+2=90
11x = 90-2
11x = 88
x = 8
m<A = 4x-2 = 4(8) - 2 = 30
m<B =7x+4 = 7(8) + 4 = 60
