Answer:
The average rate of change of the function over the interval is of 6.
Step-by-step explanation:
Average rate of change:
The average rate of change of a function h(x) over an interval [a,b] is given by:
In this question:
Over the interval [-9,-2], so 
The function is:
Then
The average rate of change of the function over the interval is of 6.
Step-by-step explanation:
ED = EB
2x +3 = 5x -15
3+15=5x -2x
18 = 3x
18 ÷ 3 = x
x = 6
The inequality would be
0.75q ≥ 0.70(q+1)
q is defined as the number of questions he answers after the first one. We are told he gets 75% of those correct; 75%=75/100=0.75. This gives us 0.75q.
Since he gains proficiency on the exercises, the total number he gets correct has to be at least 70%. This means the inequality would have the symbol greater than or equal to, as it cannot be less and have him gain proficiency.
He has already answered 1 question and answers q more; this gives us a total of q+1. Since he gains proficiency, the cutoff was 70%; 70%=70/100=0.70. This gives us the expression 0.70(q+1).
Our total inequality would then be 0.75q ≥ 0.70(q+1)
Answer:
y = -2x + 7.
Step-by-step explanation:
The slope is (5-7)/1-0 = -2 ,
Checking with other values: slope = (- 3 - 7)/ (5-0) = -10/6 = -2.
So the function is -2x + c where c is some constant.
Plugging in the point (0, 7):
7 = -2(0) + c
c = 7.
So the answer is y = -2x + 7.
Answer:
at least 1.7
Step-by-step explanation:
i think sorry if wrong
