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Nookie1986 [14]
3 years ago
13

A data set includes the following test scores: 75, 82, 84, 62, 78. The score on a retake test is 96. It the retake score replace

s the lowest test grade, how is the mean affected? A) The mean increases by 5. B) The mean increases by 6.8. C) The mean increases by 35. D) The mean does not change.
Mathematics
1 answer:
Vera_Pavlovna [14]3 years ago
8 0

Answer:

B the mean increases by 6.8

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Randomly distributing 45 pencils and 35 markers to his students. what is the probability that the first item he hands out will
Dominik [7]
If he hands out pencils will be 45/80 =
If he hands out markers will be 35/80
3 0
3 years ago
A function is created to represent the costs of living per person in the family. What restrictions would be made to the domain?
olganol [36]

Answer:

2) The domain would only include positive integers

Step-by-step explanation:

y cost for x person

x can't be negative or fraction.

5 0
3 years ago
1.Find the next three terms in the sequence. -2 , -5 , -8, -11 , ...
nikklg [1K]
The next 3 terms would be: -14, -17, and -20 (the pattern is your -3 each time) the 100th term would be -279 i think because there is 93 spots left after the first 7 terms, so 93 x -3 = -279
3 0
2 years ago
Part A: The area of a square is (9x2 − 12x + 4) square units. Determine the length of each side of the square by factoring the a
Sladkaya [172]

Answer:

Part A: The length of each side is 3x-2 units long.

Part B: The dimensions are 5x-4 and 5x+4 units long.

Step-by-step explanation:

Part A:

--> 9x^2-12x+4

--> Multiply 9 times 4 to see the factors of that product

--> 9 times4 = 36

Factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, 36

Use the factor 6 and make it negative so -6

add another -6

Keep in mind that it is -6x

--> 9x^2-6x-6x+4

Separate the four terms into two different binomials

--> 9x^2-6x  and -6x+4

Factor the binomials

With 9x^2-6x you can factor a 3x

So it will 3x(3x-2)

Do the same thing with -6x+4

You can factor out a -2

-2(3x-2)

The reason you factor out a -2 and not 2 is because it has to be same so in this case it is (3x-2)

Take the two numbers that you factored and put them to make an expression so (3x-2)

--> (3x-2)(3x-2) or (3x-2)^2

3x-2 is the length of each side so it is 3x-2 units long

Part B:

-->25x^2-16y^2

Use the difference of squares

take the square root of 25x^2

that is 5x

take the square root of 16y^2

that is 4y

write it in this way (5x+4y)(5x-4y)

These are the dimensions of the rectangle

3 0
2 years ago
How do i solve this?? lol
Nana76 [90]

Answer:

w = 5\pi

Step-by-step explanation:

Not sure if it wants an integer as an answer but:

Step 1 - Move the negative 3π to the right.

-3\pi + w = 2\pi \\w = 2\pi + 3\pi

Step 2 - Simplify by adding together

w = 5\pi

Hope this helps!

7 0
2 years ago
Read 2 more answers
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