Step-by-step explanation:
We can create a ratio and solve.
We then isolate for x and get 9
Answer:
96
Step-by-step explanation:
commom difference = d
a₆ + a₇ = 16
a₅ + a₈ = (a₆ - d) + (a₇ + d) = a₆ + a₇ = 16
a₄ + a₉ = (a₆ - 2d) + (a₇ + 2d) = a₆ + a₇ = 16
Similarly,
a₃ + a₁₀ = 16, a₂ + a₁₁ = 16, a₁ + a₁₂ = 16
so
a₁ + a₂ + ... + a₁₁ + a₁₂ = 6 x 16 = 96
Answer:
The range is 10
Step-by-step explanation:
since it starts at 0 and goes till 9 thats 10 data points
40 Why? 80%x X=50 or 80/100x X=50
The formula for Area of a circle...
A=pi(radius)²
