Answer:
12.8
Step-by-step explanation:
Given a parabola in standard form , ax² + bx + c : a ≠ 0
Then the x- coordinate of the vertex is
= - 
h = 3 + 14t - 5t² ← is in standard form
with a = - 5 and b = 14, thus
= - 
= 1.4
Substitute t = 1.4 into h for maximum height
h = 3 + 14(1.4) - 5(1.4)²
= 3 + 19.6 - 9.8 = 12.8
Answer:
y=x+70
Step-by-step explanation:
Slope of 1, and has a y-intercept of 70. So slope-intercept form would be y=m(x) +b where M is the slope and B is the intercept.
There is 1000 mm in one meter....
So..... .9 x 1000 = 900 mm
Answer:
90
Step-by-step explanation:
You can look at it from 2 perspectives:
1.The angle that is in front of a diameter is always 90°
OR
2. Central angle is twice any inscribed angle subtended by the same arc
I think x=90°, and z=136°
