MATHEMATICS HIGH SCHOOL

How many subsets does the set {1, 2, 3} have? 6 7 8

Answers

Answer 1
Answer: there are 8 sub sets
Answer 2
Answer:

Answer: There are 8 subsets

Explanation: I got it right on my test.

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Which expression is equivalent to 5 x + 10 y minus 15?

Answers

Answer:

5(x+2y-3)

Step-by-step explanation:

5x+10y-15

Factor out 5 from the expression

5(x+2y-3)

Answer:

C

Step-by-step explanation:

[-4.5 + 12] = what is the anserw

Answers

Answer:7.5

Step-by-step explanation:

Answer:

The answer will be 8.5

a store sells small notebooks for $7 and large notebooks for $14. if a student buys 6 note books for $63, how many notebooks each did she buy

Answers

The answer is 3 of each.  3X7=21; 14X3=42, and 42+21= 63.
She bought 3 large notebooks and 3 small notebooks, because 3 * 14 = 42 and   3 * 7 = 21 and 21 + 42 =63

A line has a rise of 6 and a slope of 1/20. What is the run?

Answers

The slope of a line is a number that represents thedirection and the steepness of the line. Or it is commonly defined as the riseover the run. It is denoted by the letter m. Let’s say that y is the rise and xis the run. A line may be increasing or decreasing just by knowing the slope. Ifthe slope is a negative number, the line is decreasing, and if it is a positivenumber, the line is increasing. Here you have a slope of 1/20 and a rise of 6. Them is equal to 1/20 and y equals 6. So 

m = y/x 
1/20 = 6 /x
x = 6/(1/20)
x = 120

What is the equation in slope-intercept form of the line that passes through the points ( -4 , 2) and (12, 6)?Group of answer choices

y = 0.25x − 4.5

y = 4x − 42

y = 4x + 18

y = 0.25x + 3

Answers

Answer:

y = 0.25x + 3

Step-by-step explanation:

solve for slope:

(6-2)/(12+4) = 1/4

solve for b:

6 = 12(1/4) + b

6 = 3 + b

b = 3

equation can also be y = 1/4x + 3

Step-by-step explanation:

let the equation be y = mx + b.

m = (6 - 2)/(12 - (-4)) = 1/4

sub (12, 6):

6 = 1/4(12) + b

b = 3

therefore, equation of the line is y = 1/4x + 3, aka option 4

Topic: coordinate geometry

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Which equation represents a hyperbola with a center at (0, 0), a vertex at (0, 60), and a focus at (0, −65)?

Answers

Answer:

d

Step-by-step explanation:

on edge

Answer:

D!!

Step-by-step explanation:

Got it right
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