Answer:
6
Step-by-step explanation:
Use the slope formula:

Picking x = 2 and x = 4 as my two points (since the interval is 2 ≤ x ≤ 4), we get:

So, the BEST estimate of the average rate of change for the function given in the table is 6.
Answer:
2 Hours
Step-by-step explanation:
First you have to add up all the points which would be;
1 1/2 + 1 1/2+ 2 1/2+ 2 1/2= 8 hours
Then you have to divide by how many points to find the average;
8 hours divided by 4 points= 2 hours average
In total, she will practice 2 hours every day
Answer:
1.125,−1.125
Step-by-step explanation:
64x^2+10=91
64x^2+10−10=91−10
64x^2=81
64x^2
/64 = 81
/64
x^2=
81
/64
x=±√
81
/64
x=1.125,−1.125
Answer:
Step-by-step explanation:
As the angles are supplementary, they sum up to 180
Hence, 3x+40+80=180
3x+120=180
3x=60
x=20