Factor the trinomial completely.48x3 + 140x2 + 100x
A. 4x(3x + 5)(4x + 5)
B. 4(3x2 + 5)(4x + 5)
C. x(3x + 5)(16x + 20)
D. x(12x + 20)(4x + 5)
Answer: A
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The volume V, in cubic inches, of a spherical balloon depends on its radius r, measured in inches. The relationship is
.
?
A: Make a graph of the volume of the balloon versus the radius. Include radii up to 10 inches.B: What is the radius of the balloon if its volume is 496 cubic inches? Round your answer to two decimal places if necessary.C: If one balloon has twice the radius of another balloon, how do their volumes compare?
?
What will be an ideal response?
Perform the indicated operations. Leave the result in polar form.
A. 3(cos 10° + sin 10°)
B. 6(cos 10° + j sin 10°)
C. 3(cos 
° + j sin 
°)
D. 3(cos 10° + j sin 10°)
Find the value of the probability of the standard normal variable Z corresponding to the shaded area under the standard normal curve. Round your answer to four decimal places.
?
A. 0.1638 B. ?0.2299 C. ?0.8181 D. ?0.2152 E. ?0.8295
Answer the question.Which number can serve as a common denominator for 
and 
?
A. 13 B. 10 C. 7 D. 42