72/9 = 8
She read 8 chapters per hour.
Answer:
-2 1/6 + -3 1/3 + -5 1/2 = -11
Step-by-step explanation:
-2 + -3 + -5 = -10
-1/6 +- 1/3 + -1/2 = -1
-10+-1=-11
We are using a line regression tool to solve the parameters asked in the problem. We can use online tools or that of Excel. According to the tool, the best fit values are
<span><span> </span><span>Slope0.3848 ± 0.03956
</span><span>Y-intercept0.6053 ± 0.6370
</span><span>X-intercept-1.573
</span><span>1/Slope<span>2.598
Best fit lines make sure that the standard deviation at each point is minimum from the best fit line.</span></span></span>
v=πr^2(r+7) in my opinion is the correct expression
Answer:
16
Step-by-step explanation:
Interval E contains (9,8,7,6,5,4,3,2,1,0,-1,-2,-3,-4,-5,-6)
so the numbers of the interval equals 16
