Use counting to determine the whole number that corresponds to the cardinality of the set.A = {x?x is a second in a minute}

A. n(A) = 120
B. n(A) = 30
C. n(A) = 60
D. Infinite


Answer: C

Mathematics

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The growth rate G, in hundreds of cases per day, in the spread of an epidemic depends on the number S, in hundreds, of currently sick individuals. The relationship is given by

?   . A:  Make a graph of G versus S. Include up to 4,000 currently sick people (corresponding to ).B:  There are two numbers of currently sick individuals that give a growth rate of 500 new cases per day (corresponding to ).  Find both of them.C:  When there are no sick individuals, the growth rate is 0.  There is a second level where the growth rate is 0. Find that number of currently sick people. ? Round your answer to two decimal places if necessary. What will be an ideal response?

Mathematics

Multiply.(2x + 2.7)(2x - 2.7)

A. 4x2 - 7.29 B. 4x2 - 5.4 C. 4x2 - 72.9 D. 4x2 - 10.8x- 7.29

Mathematics

Let (m × n) denote a matrix of size m × n. Find the size of the following product, or state that the product is not defined.(4 × 4)(4 × 4)

A. 4 × 4 B. not defined C. 4 × 8 D. 8 × 4

Mathematics

Find the indicated matrix.Let A = . Find 4A.

A.
B.
C.
D.

Mathematics