Based on the cone shown, which statements are correct? A)
If the volume is 47 cm3, then the height of the cone is approximately 5 cm.
B)
If the height is 10 cm, then the volume of the cone is
approximately 74
cm3?
If the height is 20 cm, then the volume of the cone is approximately 289
cm
D)
The equation V =
$1(3)?
can be used to find the volume of the cone.
E)
The equation h =
3V
TI(3)
can be used to find the height of the cone.

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.

Using elimination, what is -4x+2y=-12 4x+8y=-24

Kevin has a spinner that has 10 equal sections and 2 sections of each color—red, blue, green, yellow, and purple. kevin spins the spinner 180 times. kevin determines about how many times the spinner will land on red or green, and his work is shown below. -kevin has the formula reversed; it should be the total number of sections over the number of red or green sections. -kevin should have used a 4 in the numerator because there are 2 red sections and 2 green sections. -kevin should multiply by the number of sections in the spinner rather than the total number of spins. -kevin calculated the prediction correctly and did not make any mistakes.