To answer you divide 45 by .40 and you get 112.5 which I think is the answer.
hope that helped.
Answer:
75 mph
Step-by-step explanation:
if your smart self did 600 ÷ 8 you would've known instead of wasting points
Answer:
a. h(t) = -16t^2 +12t + 4.
b. 5.04 ft
c. 6 ft.
d. 1 second.
Step-by-step explanation:
a.
This is upward motion against the force of gravity. The acceleration due to gravity is 32 ft s-2.
An equation modelling this is
h(t) = ut + 1/2 gt^2 + 4 where h(t) = height of the birdie at time t, g = acceleration due to gravity, t = the time and u = the initial velocity.
u = 12 and g = -32 (because the flight is against gravity) so we have:
h(t) = 1/2 * -32 t^2 + 12t + 4
h(t) = -16t^2 + 12t + 4
b. At t = 0.1 seconds the height is 12(0.1) - 16(0.1)^2 + 4
= 1.2 - 0.16 + 4
= 5.04 ft.
c. At t = 0.25 the height is 12(0.25) - 16(0.25)^2 + 4
= 6 feet
d . When the birdie reaches the ground h will be 0 so
12t - 16t^2 + 4 = 0
-4t^2 + 3t + 1 = 0
(4t- 1)(-t - 1) = 0
t = -0.25, t = 1
t = 1 ( ignore the negative root).
t = 1 second.
The value of x is 1/13 (4th choice)
Step-by-step explanation:
![{a}^{ \frac{m}{n} } = \sqrt[n]{ {a}^{m} }](https://tex.z-dn.net/?f=%20%7Ba%7D%5E%7B%20%5Cfrac%7Bm%7D%7Bn%7D%20%7D%20%20%3D%20%20%5Csqrt%5Bn%5D%7B%20%7Ba%7D%5E%7Bm%7D%20%7D%20)
If 14^x = ¹³√14, what value of <em>x </em>makes this equation true?
![\sqrt[13]{14} = {14}^{x} \\ \sqrt[13]{14} = {14}^{ \frac{1}{13} }](https://tex.z-dn.net/?f=%20%5Csqrt%5B13%5D%7B14%7D%20%20%3D%20%20%7B14%7D%5E%7Bx%7D%20%20%5C%5C%20%20%5Csqrt%5B13%5D%7B14%7D%20%20%3D%20%20%7B14%7D%5E%7B%20%5Cfrac%7B1%7D%7B13%7D%20%7D%20)
So, the value of <em>x</em> is 1/13 (4th choice)
<em>Hope</em><em> </em><em>it </em><em>helpful </em><em>and </em><em>useful </em><em>:</em><em>)</em>
Answer:
Step-by-step explanation:
Choose the equation that represents the solutions of 0 = 0.25x4 - 8x.
0.25+ (0.25)2 – (4)(1)(-8)
2(1)
X=
-0.25 + (0.25)2 – (4)(1)(-8)
x=
2(1)
8+ (-8)2 – (4)(0.25)(0)
X =
2(0.25)
-8+ (-8)2 – (4)(0.2530
X =
2(0.25)
