23 25
27
40
30
15
35
35
20
18
26
38
27
27
43
57
44
19
35
22
26
22
14
42
35
12
24
24
20
26
12
21
20
34
23
27
29
15
31
33
4. Construct a dot plot.

What are the sotions to the quadratic equation 9x^2=4

Evaluate cos2θ for cosθ = square root of 3/2

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?