Answer:
A(n) = a + (n - 1)d is the correct formula for an arithmetic sequence.
Step-by-step explanation:
Answer: A ≈ 5541.77cm²
Step-by-step explanation:
59.346
V = pi * r^2 * h
V = 3.14 * 3^2 * 2.1
V = 3.14 * 9 *2.1
V = 3.14 * 18.9
V = 59.346
Answer:
n = 5
Step-by-step explanation:
Given
5n + 20n = 5(n + 20), that is
25n = 5(n + 20) ← divide both sides by 5
5n = n + 20 ( subtract n from both sides )
4n = 20 ( divide both sides by 4 )
n = 5
Answer:
The equation of this line would be y = 3/2x - 11, which is the answer D.
Step-by-step explanation:
In order to find this equation we must first find the slope of the original line. The original slope (the coefficient of x) is -2/3, which means the new slope will also be 3/2 because perpendicular lines have opposite and reciprocal slopes. Now, we can use this slope along with the point in point-slope form to find the equation of the line.
y - y1 = m(x - x1)
y - 1 = 3/2(x - 8)
y - 1 = 3/2x - 12
y = 3/2x - 11
