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soldi70 [24.7K]
3 years ago
13

Question #2 MultipleChoice

Mathematics
2 answers:
Natalija [7]3 years ago
7 0

Answer:

probability

Step-by-step explanation:

this type of function determines who gets randomly chosen such as you having a hat and putting 30 names on paper the announcing the winners probability determines that.

sergey [27]3 years ago
4 0

Answer: simple random sampling

Step-by-step explanation:

A simple random sampling is a type probablistic sampling method which gives respondents an equal chance of being selected for a study, it eliminates bias in research, since each person in the population has equal chance of participating.

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Suppose you are solving an inequality. Under what circumstances do you reverse the inequality symbol? Select all that apply.
gayaneshka [121]

Answer:

When you're dividing, I only know that one. sorry..

Step-by-step explanation:

4 0
3 years ago
(-3x)²-(3x-2)²-6*(2x-1.5)
Ilya [14]
Without the instructions, I can only assume that you are to "expand the given expression."

Following order of operations rules requires that (3x-2)^2 and -6(2x-1.5) be evaluated first.

(3x-2)^2 = 9x^2 - 12x + 4   and    -6(2x-1.5) = -12x + 9

Then we have 9x^2 - (9x^2 - 12x + 4) -12x + 9

the 9x^2 terms cancel, leaving  us with 12x - 4 - 12x + 9 = 5 (answer)

4 0
3 years ago
Given: m∠QVR = 49° Prove: x = 15 Complete the steps of the proof. ♣: ♦:
faust18 [17]

Answer:

vertical angles theorem

3x + 4 = 49

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
ABC has coordinates of A(-8,-8) B(4,-2) C(2,2). Find the coordinates of its image after the dilation centered at the origin with
garri49 [273]

Answer:

A' ( -12 , -12 )

B' ( 6 , -3 )

C' ( 3 , 3 )

Step-by-step explanation:

To find the coordinates of a point after a dilation simply multiply the x and y values of the points by the scale factor

Points: A(-8,-8) B(4,-2) C(2,2)

Scale factor: 1.5

Coordinates after the dilation

A' = (-8,-8) --------> (-8 * 1.5 , -8 * 1.5 ) ------------> (-12 , -12)

B' = (4,-2) ---------> (4 * 1.5 , -2 * 1.5) -----------> (6 , -3 )

C' = (2 , 2) ----------> (2 * 1.5 , 2 * 1.5) -----------> (3, 3)

So inclusion the coordinates of ABC after a dilation centered at the origin with a scale factor of 1.5 are A' ( -12 , -12 ) B' ( 6 , -3 ) C' ( 3 , 3 )

4 0
3 years ago
The measure of angle ABD is (0.15x+65) and the measure of angle CBD is(0.1x+28) . Find the value of x.
Andrej [43]

Answer:

x = 348

Step-by-step explanation:

The measure of angle ABD is (0.15x+65) and the measure of angle CBD is(0.1x+28) . Find the value of x.

0.15x + 65 + 0.1x + 28 = 180

0.25x + 93 = 180

0.25x = 180 - 93

0.25x = 87

x = 87/0.25

x = 348

3 0
3 years ago
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