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Ne4ueva [31]
4 years ago
12

From a population of size 400, a random sample of 40 items is selected. The median of the sample Group of answer choices must be

200, since 400 divided by 2 is 200 must be 10, since 400 divided by 400 is 10 must be equal to the median of population, if the sample is truly random None of these alternatives is correct.
Mathematics
1 answer:
avanturin [10]4 years ago
4 0

Answer:

400+40+200+400 +200 +10+400×2+10

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Xavier traveled 8,658 miles in 17 days. On average, how many miles per day did he travel
OLEGan [10]

Answer:

509.3 miles

Step-by-step explanation:

divide 8658 by 17 to get 509.294117647

round that number to get your answer 509.3

5 0
3 years ago
The number -13 can be classified as:
pogonyaev
<h3>Answer: Choice B) real and integer</h3>

Explanation:

The set of integers is {..., -3, -2, -1, 0, 1, 2, 3, ...} basically its the set of positive and negative whole numbers, including 0 as well. The set of whole numbers is {0, 1, 2, 3, 4, ...} so any positive number that does not a fractional or decimal part. The value 0 is included in the set of whole numbers. The natural numbers is {1, 2, 3, 4, ...} so it is the set of whole numbers but we kicked out 0 from this set. The set of natural numbers is also called the set of counting numbers.

If we take any two integers and divide them then you'll get a rational number. You cannot have zero in the denominator, but you can have any other integer. For example,  2 and 3 divide to get the fraction 2/3 which is a rational number. Numbers that we cannot express as a fraction of two integers are said to be irrational. An example of this is pi = 3.14 which is irrational. We cannot write pi as a ratio of two integers. One approximation is pi = 22/7, but this doesn't represent pi exactly. Any integer itself is rational. Something like -13 can be written as -13/1, so we cannot say -13 is irrational. That rules out choice A. Choice C is ruled out because negative numbers aren't natural numbers. The same can be said about -13 not being part of the whole number set {0, 1, 2, 3, 4, ...} so choice D is also false.

7 0
3 years ago
If VUW is equiangular, find k and t.
Alenkinab [10]

Answer:

C. k=68, t=52

Step-by-step explanation:

Let u, v, y represent the measures of the unmarked angles at the respective vertices. The angles of the equiangular triangle are all 180°/3 = 60°, so we have the relations ...

  • y=v
  • y+v+k = 180
  • v+64+60 = 180
  • u=64
  • u+64+t = 180

From these relations, we know that

... v = 180 -124 = 56 . . . . . 3rd equation above

... 56 +56 +k = 180 . . . . . . 2nd equation above, with y=v=56

... k = 180 -112 = 68 . . . . . above with 112 subtracted

... t = 180 -128 = 52 . . . . . 5th equation above with u=64 and 128 subtracted

8 0
3 years ago
Read 2 more answers
Which of the following is the equation for the line perpendicular to the line 3x−2y=10 that passes through the point (7, 5)
dsp73

Answer:

the answer is B which is y= -2/3x + 29/3

Step-by-step explanation:

4 0
3 years ago
What is a + bc if a = 2, b=3, and c=4
gayaneshka [121]

Answer:

14

Step-by-step explanation:

So we have the expression:

a+bc

Substitute 2 for a, 3 for b, and 4 for c:

=(2)+(3)(4)

Multiply:

=2+12

Add:

=14

7 0
3 years ago
Read 2 more answers
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