Step-by-step explanation:
The plot with the points closest to being on the same line will be the plot with the highest correlation, or strongest association.
Answer:
The correct answer is 333 1/ 3 ml 30% solution and 166 2/ 3 ml of 45% solution.
step-by-step explanation:
Set up 2 equations. Let x be the 30% solution and y be the 45% solution. Then you have x + y =500 and .3x +.45y = .35*500. Then solve the system.
Answer:
Step-by-step explanation:
t=V100-50/4
t=V50/4=1.76≈1.8 s
when h=0
t=V100/4=10/4=2.5 s
Answer:
base = 17.71 ft
height = 9.71ft
Step-by-step explanation:
Since we are not given the base and heigh directly, to answer this question we need two equations: (1) one to express the area (A) of a triangle, and (2) one describing the fact that height (h) and the base (b) lengths are related. Setting up and solving the system of these two equations for base leads to a quadratic equation:
which has two solutions but one is negative, i.e., not applicable. The good solution for base is .
Since we know the height is 8 ft less than the base, the height must be 9.71ft
If we call the area A, then
if we call the perimeter P, then
subtracting 14 gives
subtracting 2x gives
dividing by 5 gives
or