The answer is D you have to find the value of c
Answer:
A= (b1+b2)/2 then multiplied by h.
h=2(A/b1+b2)
height is 6 centimeters
Step-by-step explanation:
For area formula, you would add the bases, divide by 2, then multiply by height
For height formula, you would divide the area by the sum of base one and two, then multiply by two. Using that formula, it would be 72/(16+8) which equals 3, then multiply by 2, equaling 6.
Just draw the graphs, and you should find y = 10x² is the only graph narrower than the given one.
Answer:
Distance around the track = 194.3 metres.
Step-by-step explanation:
Given: The two straight sides are of the track are 50 metres each
Diameter of each bend = 30 metres
Thus;
radius of the bends = ![\frac{diameter}{2}](https://tex.z-dn.net/?f=%5Cfrac%7Bdiameter%7D%7B2%7D)
= ![\frac{30}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B30%7D%7B2%7D)
= 15 metres
So that,
length of the semicircular bend =
x 2
r
=
r =
x 15
= 47.143
length of each semicircular bend is 47.14 metres.
Distance around the track = addition of the length of each straight sides + addition of the length of the bends
= 50 + 50 + 47.14 + 47.14
= 194.28
Therefore,
Distance around the track = 194.3 metres.