Answer:
I can only help with part A
mean rounded to nearest tenth for Third Period: 91 (91.3)
mean rounded to nearest tenth for Fifth Period: 89.1 (89.12)
anybody correct me if i got this wrong please!
D
A nonproportional relationship is a linear line that doesn’t go through the origin.
y=3x+0 does go through the origin because the y-intercept (the b) is 0
Y=x/4 also has a y-intercept of 0
Y=7x also has a y-intercept of 0.
y=2/5x+7 does not go through the origin because the line passes the y-axis at (0,7) which is the y-intercept.
By the formula for the area of an equilateral triangle (s^2sqrt(3)/4), the area is sqrt(3)/4.
<em>3 is the only number which is one less than a square...</em>
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Answer:

Step-by-step explanation:
If t is the number of years, then 12t is the number of months interest is compounded. The interest rate (growth rate) used each month is 1/12 of the annual rate, so is
monthly growth rate = 2%/12 ≈ 0.167% = 0.00167
Then the monthly growth factor is ...
monthly growth factor = (1 + monthly growth rate) = 1.00167
The overall account value is the initial value multiplied by this growth factor a number of times equal to the number of months, 12t. Repeated multiplication is indicated by an exponent:
A = 1500(1.00167)^(12t) . . . . . . . matches the last choice