Estimate by rounding the addends to the nearest ten:
?
?
A. 1420
B. 1440
C. 1430
D. 1450
Answer: C
You might also like to view...
Simplify.- 
A. -22
B. -6
C. -14
D. -84
Multiply. 
A. 94,000 B. 95,000 C. 85,000 D. 93,000
Use Bayes' rule to find the indicated probability.An water well is to be drilled in the desert where the soil is either rock, clay or sand. The probability of rock P(R) = 0.53. The clay probability is P(C) = 0.21. The sand probability is P(S) = 0.26. It if it rock, a geological test gives a positive result with 35% accuracy. If it is clay, this test gives a positive result with 48% accuracy. The test gives a 75% accuracy for sand. Given the test is positive, what is the probability that soil is rock, P(rock | positive)?
A. P(rock | positive) = 0.405 B. P(rock | positive) = 0.385 C. P(rock | positive) = 0.53 D. P(rock | positive) = 0.209
Five math books and three literature books are on a shelf. How many ways can they be arranged if the math books are kept together and the literature books are kept together?
What will be an ideal response?