The answer is 481.6, because 56% = 0.56, so just multiply 860 by 0.56 and u get 481.6
Answer:
- <u>f(t) = -7.561(t + 1.15)(t - 2.53)</u>
Explanation:
The<em> hint </em>is that the function f can be written in the form:
- f(t) = c (t - t₁) (t - t₂)
It is a quadratic function, i.e. a parabola.
The maximum point, maximum height, of a parabola is its vertex.
And the x-coordinate of the vertex is at the midpoint between the two x-intercepts.
The time when the rock reaches the road is one x-intercept: t = 2.53 seconds: (2.53, 0).
The other x-intercept is sucht that (x + 2.53) / 2 = 0.69
- (x + 2.53) / 2 = 0.69
- x + 2.53 = 1.38
- x = 1.38 - 2.53
- x = -1.15
Thus, the equation is:
- f(t) = c(t + 1.15) (t - 2.53).
You can find c by doing t = 0, because at t = 0 the height, f(t), is 22 feet:
- f(0) = 22 = c (0 +1.15)(0 - 2.53)
- 22 = c(1.15)(-2.53)
- 22 = c (-2.9095)
- c = - 22/(2.9095)
- c = - 7.561
Then, the function can be written as:
- f(t) = -7.561(t + 1.15) (t - 2.53) ← answer
Answer:
5
Step-by-step explanation:
you find the mean of the numbers and use the mean and subtract the mean from all of the numbers.
Sorry I am bad at explaining
Answer:
the answer is €74£ and if you dont get dats juss u get it together
Hey there!
So, first, you need to rearrange the second equation so y is in front.
x+y=10
Subtract x.
y=10-x
Plug that in for y.
2x+3(10-x)=45
2x+30-3x= 45
Subtract 30 on both sides.
-x= 15
Divide by -1 on both sides.
x=-15.
I hope this helps!
~kaikers
