Answer:
-23
Step-by-step explanation: You have to combine like terms first:
-3.8x -5.9x =223.1
-9.7x = 223.1
Then divide om each side of the equation by -9.7.
-9.7x/-9.7 = 223.1/-9.7
x =- 23
To determine the number of subjects that are needed for the experiments, we multiply the number of independent variables with the number of scores. For example, there are n independent variables then, there are approximately,
number of subjects = 20 x n = 20n
Answer:
V = 972π cubic inches :)
Step-by-step explanation:
The formula for the volume of a sphere is
V = (4/3)πr3
If the diameter is 18 inches, then the radius is 9 inches. Substituting 9 in for r gives us a volume of:
V = (4/3)π(9)3
V = (4/3)π(729)
V = 972π cubic inches
Hope this helps!
Answer: 1.3 (Estimated)
Work: To find that out, I divided 4 minutes by 3 laps, and that's 1.333... In which I rounded that to 1.3.