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4 years ago

Consider the following sets.

2 answers:

6 0

A = {x ≥ 3}, B = {x ≤ 1}

So A∪B = {x ≥ 3 or x ≤ 1}

So for x ⊆(1,3), A∪B = ∅

Apparently, (1,3) covers the first option, a will be the answer

Alex73 [517]4 years ago

6 0

Answer:

A. 2 < x < 3

Step-by-step explanation:

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What is the inverse of the following conditional statement? "If a number is a prime number, then it has no factors other than on

Anton [14]

Answer:

D. if a number has factors other than one and itself, then it is not a prime number

8 0

2 years ago

In a recent year, 19.4% of all registered doctors were female. If there were 52,500 female registered doctors that year, what wa

sukhopar [10]

Answer: 10,185 registered female doctors.

Step-by-step explanation: We basically want to find how many females were doctors, if 19.4% of the 52,500 females were registered doctors. Basically we want to find 19.4% of 52,500. We will write an equation that works to solve this problem.

19.4/100 = x/52,500 (This equation represents that 19.4% out of 100% is x out of the 52,500 registered doctors.) Solve for x.

19.4/100 x 52,500 = x/52,500 x 52,500.

(19.4 x 52,500 = 1,018,500/100 = 10,185. And, x/52,500 x 52,500 = x.

10,185 = x.

So, 19.4% of all registered doctors would be 10,185 females out of 52,500 females.

3 0

3 years ago

What is the value of 35−3m, when m = 4?

amm1812

Answer:

Step-by-step explanation:

Step 1:

35 - 3m Equation

Step 2:

m = 4 Input m into equation

Step 3:

35 - 3 ( 4 ) Add m to the equation

Step 4:

35 - 12 Multiply

Answer:

Hope This Helps :)

6 0

3 years ago

What is the length of ac?

leonid [27]

Answer:

Step-by-step explanation:

Given triangles are similar, so we setup a proportion

(140-x)/81 = x/9

solving gives x = 14

AC = 140-x = 140-14 = 126

7 0

3 years ago

Read 2 more answers

State, with an explanation, whether the mean, median, or mode gives the best description of the following average. The average

erma4kov [3.2K]

Answer:

The mean is the better method.

Step-by-step explanation:

The best way to meassure the average height is throught mean. The mean of a sample is the average of that sample's height, and it will be a good estimate for the population's average height.

The mode just finds the most frequent height. Even tough the most frequent height will influence the average height, knowing only what height is the most frequent one doesnt give you enough informtation about how the height is centrally distributed.

As for the median, it is fine to use the median of a sample to estimate the median of the population, but if you use the median to estimate the average height you may have a few issues. For example, if you include babies in your population, the babies will push the average height down a lot and they are far below te median height. This, as a result, will give you a median height of a sample way above the average height of the population, becuase median just weights every person's height the same, while average will weight extreme values more, in the sense that a small proportion of extreme values can push the average far from the median.

8 0

3 years ago