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Law Incorporation [45]
3 years ago
8

WILLL GIVE A BRAINLEST

Mathematics
2 answers:
lord [1]3 years ago
5 0

It is B. simple random sample

Mama L [17]3 years ago
4 0

Answer:

B. simple random sample

Step-by-step explanation:

The company randomly selects 100 customers and asks them about their level of satisfaction with the company. Therefore, the method used here is simple random sample

A simple random method is described as a random selection of few people from a majority or a whole population. These few samples represent the whole population. Moreover in a random sampling, each person has an equal chance to participate as its random and no one knows who will be selected. Random sampling is one of the best and non biased sampling methods to conduct any survey.

The cluster sampling is wrong as this form requires groups but here the company has not grouped people. This cannot either be stratified as in stratified sampling, sub-populations are considered and here it is not considered. In convenience sampling, the closest persons are surveyed which is not the case here. So, these 3 options are wrong.

Only simple random sampling is the correct option.

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Identify the Vertex: x^2 - 12x + 44
nikklg [1K]

The vertex of the given quadratic polynomial function is (6, 8)

A quadratic polynomial function is the one which can be represented in the form ax² + bx + c = y where a, b and c are coefficients and x, and y are independent and dependent variables respectively. A parabola is formed when the quadratic polynomial is plotted on graph. The x coordinate of the vertex can be found using formula (-b/2a) and y coordinate can be found by putting the value of x in the equation.

Given polynomial function x² - 12x + 44

Now, x = (-b/2a)

x = (12/2)

=> x = 6

Now, y = 6² - 12×6 + 44

y = 36 - 72 + 44

=> y = 8

Therefore, Vertex = (6, 8)

Learn more about Vertex of quadratic polynomial at:

brainly.com/question/15385707

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3 0
1 year ago
The expression 3(x-9) is equivalent to
Inessa05 [86]
The answer to this question would be D. 3(x)-3(9)
8 0
3 years ago
Find f(2) given f(x) = -3x^3 + x^2 – 3
aleksley [76]

Answer:

D

Step-by-step explanation:

f(x) = -3x^3 + x^2 – 3       f(2) means that wherever you see a x, put in a 2.

f(2)= -3(2)^3 + (2)^2 - 3

f(2) = -3*8 + 4 - 3

f(2) = - 24 + 1

f(2) = - 23

6 0
2 years ago
Read 2 more answers
The volume of a rectangular prism is 2x^3+9x^2-8x-36 with height x + 2. Using synthetic division, what is the area of the base?
navik [9.2K]

Answer:

Area of the base = 2x^2+5x-18

Step-by-step explanation:

We know that volume of rectangular prism = (Area of base) x (Height)

or [Area of base] = [Volume]/[Height]

So basically we need to divide given area by given height to find the answer.

given height is (x+2) that means (x+2) must be factor of volume equation

or x=-2 must be root of volume equation so write down coefficients of volume equation then we divide by -2 as shown in attached picture.

Last digit on the right is always remainder.

Remaining coefficients {2, 5, -18} will give the area equation: 2x^2+5x-18

Hence final answer is:

Area of the base = 2x^2+5x-18


5 0
3 years ago
In /\UVW, VW ~= UV and m
goblinko [34]
I’m so sorry but I do not understand the question-could u explain
4 0
3 years ago
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