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IrinaVladis [17]
3 years ago
13

Imani would like to approximate the number of students in her school with part time jobs . She surveys the 28 students in her ma

th class . Is this baised or unbaised ?
Mathematics
1 answer:
sladkih [1.3K]3 years ago
6 0
Biased, because there is only survey of one group of people (one grade, one class). The sample (the class) is too small compared to the population (assuming it’s an average school size). You will end up with less than 1 percent of the population size thus the survey is not reliable information.
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The greater of two numbers is six more
pickupchik [31]

Answer:

 

Let's begin by writing the mathematical equations given by the sentences.

 

Let X = smaller number

Let Y = larger number

 

The first sentence tells us

X + Y = 38

 

The second sentence tells us

X = Y/3 + 6

 

Since you weren't given a specific method to use, you can use either the substitution method or the elimination(addition) method, whichever works best for you.

 

Since the 2nd equation has the X isolated, I'm going to isolate the X in the first equation,

X = 38 - Y

 

Since both equations are equal to X, I can set them equal to one another and solve for Y.

Y/3 + 6 = 38 - Y

 

Y + 18 = 114 - 3Y

4Y = 96

Y = 24

 

Then use either of the two original equations to solve for X

X + Y = 38

X + 24 = 38

X = 14

Step-by-step explanation:

PLS MAKE ME AS BRAINLIST

5 0
3 years ago
Please help me!!! will give brainlists!
Varvara68 [4.7K]
You have a rectangular prism on your hands. The formula for the volume of a rectangular prism is

(B/2) • l

Where B is the area of the base, and l is the length.

If you notice, you do NOT have the height of the triangle. However, you know that it is an equilateral triangle. So, you may split the triangle into two. Once you do, you can see that it is a right triangle. It’s hypotenuse is 3. If you know your triangles, you will realize that this is a 30 60 90 triangle. Therefore, the height will be 1.5 * sqrt(3)

So, to get B...

3 * 1.5sqrt(3)
4.5sqrt(3)
(Divide by 2)
2.25sqrt(3)
O
(9sqrt(3))/4
Multiply by the length of the prism, 6

This is your final answer in fraction form

27
— 2^rt(3)
2
5 0
3 years ago
What is the value of 5.4?
Galina-37 [17]
The value is .54 hope this helped
5 0
3 years ago
I honestly don’t understand this at all can you help?
blondinia [14]
A. the first box is 7 
    the second box is 2
    the third box is 100 
    the fourth box is 6.5
    RULE: times 3 + 2
b. the first box is 45/2
    the second box is -0.75
    the third box is 0
    the fourth box is 2.75 
    RULE: times 5/2
c. the first box is 1 1/2
    the second box is 6
    the third box is -4
    the fourth box is -1.75
    RULE: times half add one
6 0
3 years ago
Read 2 more answers
Solve for x. Write both solutions, separated<br> by a comma.<br> 5x2 + 2x - 7 = 0
Sidana [21]

Answer:

uga buga

Step-by-step explanation:

dont know

7 0
3 years ago
Read 2 more answers
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