Answer:
x=-3
Step-by-step explanation:
The quadratic function 
determines the parabola which has the vertex at point (-3,5). The axis of symmetry passes through the vertex and is parallel to the y-axis. Hence, its equation is x=-3 (see attached diagram).
Answer: the average speed = 6 miles/hour
Step-by-step explanation:
Average speed is ( total distance ) / ( total time )
For the 1st 6 miles
6=4.t
t=1.5 hrs
let s = speed for last 2.5 hrs
hope it helps
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Answer:
-18
Step-by-step explanation:
h(t)=-5t^2+2
h(-2)=-5(-2)^2+2
h(-2)=-5(4)+2=-20+2=-18
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Answer: 28 cubes
Step-by-step explanation:
The answer to part a should by 1/2 inch because the cube must fit within the smallest dimension of the rectangular prism. If the cube were larger, it would not fit inside the 1/2 inch length.
1. Four 1/2 inch cubes would add up to the 2 inch side of the rectangular prism.
2 ÷ 1/2 = 4
2. Seven 1/2 inch cubes would add up to the 7/2 inch side of the rectangular prism.
7/2 ÷ 1/2 = 7
This means that four rows of seven 1/2 inch cubes can fit within the rectangular prism.
3. Multiply.
7 · 4 = 28 cubes
Best Of Luck
