Find the missing dividend or divisor. 
= 2x7 + 5x2 + x
A. 2x8 - 5x3 + x2
B. 2x8 + 5x3 + x
C. 2x8 + 5x3 - x2
D. 2x8 + 5x3 + x2
Answer: D
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Solve the problem.If an earthquake has an intensity of x, then its magnitude, as computed by the Richter Scale, is given by src="https://sciemce.com/media/4/ppg__reres0508192344__f1q50g5.jpg" alt="" style="vertical-align: -4.0px;" /> on the Richter scale, how many times more intense (to the nearest whole number) is the second earthquake than the first?
A. 4
B. 158
C. 51
D. 251,188,643
is the intensity of a small, measurable earthquake. (Consider 
for this problem.) If one earthquake has a magnitude 
on the Richter scale and a second earthquake has a magnitude
Find a polynomial of degree 3 with real coefficients that satisfies the given conditions.Zeros of 5 and i, P(1) = -8
A. P(x) = x3- 5x2 + x - 5 B. P(x) = x3+ 5x2 + x - 5 C. P(x) = x3+ 5x2 - x + 5 D. P(x) = x3- 5x2 + x + 5
Find the circumference and area of a circle having the given diameter or radius. Use 3.14 for ?. Round your results to the nearest tenth.r = 1.8 ft
A. C ? 11.3 ft, A ? 10.2 ft2 B. C ? 5.7 ft, A ? 40.7 ft2 C. C ? 5.7 ft, A ? 22.6 ft2 D. C ? 11.3 ft, A ? 11.3 ft2
Solve.Find two numbers whose sum is 40 and whose product is as large as possible. [Hint: Let x and 
be the two numbers.Their product can be described by the function 
A. 
and 
B. 20 and 60
C. 19 and 21
D. 20 and 20