Alexis evaluates the expression 72.1 - a + b for a = 28.05 and b = 132.6. How can Alexis use estimation to check that his answer is reasonable?

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Q: Which estimate is closest to the actual value of (2.99548 x 1.8342) ?

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Q: 54. Solve +3t≥-2 (1-3t) - for t. O t≤ 13/20 O t≥ 1/1/0 13 12 O t≤ 39 4 O t≥-39x

A: Consider the inequality

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Q: Given P(A) = 0.34, P(B) = 0.33, P(A or B) = 0.24, what is P(A and B)? Answer in decimal form.…

A: Given,P(A)=0.34P(B)=0.33P(A or B)=0.24

Q: If P(A) = 0.5 and P(B) = 0.80, then P(A or B) must be 0.95.   TRUE or FALSE

A: From the provided information, P (A) = 0.5 and P (B) = 0.80

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Q: whats the test static round to 2 decimals.

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A: We have to find the smallest of the given statements.

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Q: Given P(A) = 0.42, P(B) = 0.46, P(A or B) = 0.33, what is P(A and B)? Answer in decimal form.…

A:

Q: Evaluate e3.32.

A: e3.32=e3.32

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Q: The middle 55% of the data lie between Incorrect and Incorrect .

A:

Q: what is the mean of 2.3, 4.6, 5.7, 11.8. Also should it be rounded? my solution 10.3  /2= 5.15

A: Answer:- Given data,  2.3, 4.6, 5.7, 11.8  Using formula,  Mean = Sum of the terms/Number of terms

Q: Given P(A) = 0.27, P(A and B) = 0.33, P(A or B) = 0.41, what is P(B)? Answer in decimal form.…

A: Formula : P(A or B) = P(A) + P(B) - P(A and B)

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Q: What is closest to 9.2

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Q: Summarized on the right is the number of visitors (in millions) of the top five websites in 2015.…

A: First we find total number of visitors and then we divide D by the this sum.