Factor.64k2 - 9m2
A. (8k + 3m)2
B. (8k - 3m)2
C. (64k + m)(k - 9m)
D. (8k + 3m)(8k - 3m)
Answer: D
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Find the indicated probability. Round as indicated.A company purchases shipments of machine components and uses this acceptance sampling plan: Randomly select and test 30 components and accept the whole batch if there are fewer than 3 defectives. If a particular shipment of thousands of components actually has a 3% rate of defects, what is the probability that this whole shipment will be accepted? Estimate the probability to four decimal places if necessary.
A. 0.1669 B. 0.5389 C. 0.9399 D. 0.0482
Solve the problem.A certain radioactive isotope has a half-life of approximately 950 years. How many years to the nearest year would be required for a given amount of this isotope to decay to 75% of that amount?
A. 238 years B. 1900 years C. 319 years D. 394 years
Solve the problem.A certain noise has an intensity I of 
. Given that decibel level D is related to intensity by 
, where I0 is 10-12, determine the decibel level of the noise. Round your answer to the nearest decibel.
A. 184 decibels B. 8 decibels C. 70 decibels D. 80 decibels
Factor.15z3 + 4z2 - 4z
A. z(15z + 1)(z - 4) B. (z2 - 2)(15z + 2) C. (3z - 2)(5z + 2) D. z(3z + 2)(5z - 2)