this is a circle with the centre at the origin and radius 4.
X/10 = 10/4x
4x^2 = 100
x^2 = 25
x = 5
answer
5 units
Step-by-step explanation:
Given
y = - 8 /5 x + 2
Comparing the given equation with y = mx + c
slope (m) = - 8/5
Hope it will help :)
Ammar hikes 2.75 miles in 75 minutes so he hikes 2.75 miles in 1.25 hours. If you divide 2.75 by 1.25, you find his rate per hour: 2.2 miles per hour.
You have to find the angle of sunlight and the pole , which then cast a shadow
length of the pole is equal to 3.1m
creating a hypotenuse of 4.52m
the angle will be
[email protected] = opposite side / hypotenuse
= 1.46/4.52
= 0.32 that's 18.66 °
now for the building sin18.66° = opposite/hypotenuse
0.32 = 36.75/ hypotenuse
hypotenuse = 114.84 m
thus using Pythagoras theorem
114.84*114.84 = 36.75*36.75 + x^2
which comes around = 108.8 roughly 109 metres long
