Answer:
43.2
Step-by-step explanation:
convert percentage (32%) by moving decimal to left 2 places = 0.32
135 * 0.32 = 43.2
Answer: The value of x is 13 cm.
Explanation:
It is given that the length and width of the rectangle are 12 cm and 9 cm.
Use pythagoras to find the value of the diagonal.
It is given that the diagonal is labeled as 2x-11.
Divide both side by 2.
Therefore, x = 13cm.
Given the height of the ball at time, t is modeled by:
h(t)=100t-16t^2
the maximum height will be found as follows:
at maximum height:
h'(t)=0
thus given h(t), the derivative will be:
h'(t)=100-32t=0
solving for t we get
t=100/32
thus the time taken for the ball to reach maximum height is t=100/32. Hence the maximum height will be:
h(100/32)=100×100/32-16×(100/32)²
=156.25 ft
(x + 9)/2 = 3x
Multiply both sides by 2 since the left is divided by 2.
x + 9 = 6x
9 = 5x
x = 9/5 or 1 4/5