Solve the problem.A geometric progression is a sequence of terms in which each term is r times the preceding term. The sum of the first two terms of such a sequence, where a is the first term, is given by the expression 
. Simplify the expression.
A. a(1 - r)
B. a(1 + r2)
C. a + r
D. a(1 + r)
Answer: D
Mathematics
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Use the Bisection Method to approximate the real root of the equation on the given interval. The answer should be accurate to two decimal places.x4 + 6x3 + 2x - 1 = 0;
[0, 1]
A. 0.50 B. 0.25 C. 0.32 D. 0.36
Mathematics
Solve the problem.Find the center of mass of the hemisphere of constant density bounded 
and the 
A. 
= 0, 
= 0, 
= 4
B. 
= 0, 
= 0, 
= 2
C. 
= 0, 
= 0, 
= 
D. 
= 0, 
= 0, 
= 
Mathematics
Perform the operations.
A. 490 B. 4,900 C. 49 D. 0.49
Mathematics
In a series resonant circuit, R = 15 ê, XL = 220 ê, XC = 220 ê, and E = 6.0 V. What is VL?
a. 88 V b. 44 V c. 0 V d. 6 V e. 12 V
Mathematics