Answer:
not sure
Step-by-step explanation:
Answer:
C. Elise should multiply both sides by 8.
Step-by-step explanation:
We need to undo what is being done to x
We are dividing x by 8, so to undo it we do the opposite.
The opposite of dividing is multiplication.
We multiply each side of the equation by 8
The length is 28ft. W=15 so you’d subtract 30 from 86 and get 56. Then divide 56 by 2 and get 28 which is the length. You can check this by adding 15+15+28+27 together and see if it equals 86 which it does.
Answer:
Step-by-step explanation:
Equation of a line:
The equation of a line, in point slope form, is given by:
In which the point is 
and m is the slope.
3/15
This means that 
So
Finding the slope:
Suppose we have two points. The slope is given by the change in the output divided by the change in the input.
3/15
5/25
Change in the output: 25 - 15 = 10
Change in the input: 5 - 3 = 2
So
The equation is:
Answer:
the object will attain maximum height at 3.5 seconds.
Step-by-step explanation:
The height of the object (in feet), h, above the ground t seconds after it is fired is given by h(t)=−16t2+112t+128.
128 represents 128 feet above the ground and this is the height from which the object was fired.
The given equation is a quadratic equation and plotting of this equation on a graph would give a parabola whose vertex would be equal to the maximum height travelled by the rocket.
The vertex of the parabola is calculated as follows,
Vertex = -b/2a
From the equation,
a = -16
b = 112
Vertex = - - 112/32= 3.5
So the object will attain maximum height at 3.5 seconds.
