MATHEMATICS
MIDDLE SCHOOL

A. -4

B. -8

C. 4

D. 12

Answer:

The correct answer is A. -4.

When you subtract a negative, it is the same as adding a positive (the two negative signs cancel each other out). Therefore, we have:

-6 + 2 = -4

Answer:

A. -4. when you subtract a negative you are actually adding so you would add 2 to -6 and end up with -4

MIDDLE SCHOOL

Describe what happens to the graph of y=3x+4 when the slope is changed to 1/3

The graph is still a straight line, it still cuts the y-axis at the point y=4 ,

and it still slants up from left to right.

But it becomes a lot less steep. The original line only had to go 4 inches

to the right in order to rise 1 foot. The new line has to go 3-feet to the right

in order to rise 1 foot.

HIGH SCHOOL

Calculate the median of the data set below. {3, 7, 9, 2, 5, 3, 4, 6, 1, 0}

The median is the number in the middle from least to greatest. so your answer would be 3.5 because 3 and 4 are in the middle. you add those and divide them by two and get your answer! hope this was helpful!

MIDDLE SCHOOL

What is the value of the numerical expression 5/8-5/12(3-1/4)+2/3

Make bottom numbers same

find least common multipules of 8,12,4 and 3

8=2 times 2 times 2

12=2 times 2 times 3

4=2 times 2

3=3

lcm=2 times 2 times 2 times 3=24

5/8 times 3/3=15/24

5/12 times 2/2=10/24

3/1 times 24/24=72/24

1/4 times 6/6=6/24

2/3 times 8/8=16/24

we now have

15/24-10/24(72/24-6/24)+16/24

pemdas

simplify parenthasees first

72/24-6/24=66/24

now we have

15/24-10/24(66/24)+16/24

multiply

15/24-660/576+16/24

make same bottom number

15/24 times 24/24=360/576

16/24 times 24/24=384/576

360/576-660/576+384/576

84/576

7/48

answer is 7/48

find least common multipules of 8,12,4 and 3

8=2 times 2 times 2

12=2 times 2 times 3

4=2 times 2

3=3

lcm=2 times 2 times 2 times 3=24

5/8 times 3/3=15/24

5/12 times 2/2=10/24

3/1 times 24/24=72/24

1/4 times 6/6=6/24

2/3 times 8/8=16/24

we now have

15/24-10/24(72/24-6/24)+16/24

pemdas

simplify parenthasees first

72/24-6/24=66/24

now we have

15/24-10/24(66/24)+16/24

multiply

15/24-660/576+16/24

make same bottom number

15/24 times 24/24=360/576

16/24 times 24/24=384/576

360/576-660/576+384/576

84/576

7/48

answer is 7/48

HIGH SCHOOL

Calculate The Mean from the data given below: x f 0 1 1 13 2 20 3 40 4 40 5 13 6 7

Answer: 12.6

Step-by-step explanation:

(0 + 11 + 13 + 2 + 20 + 3 + 40 + 4 + 40 + 5 + 13 + 6 + 7)/13

= 164/13

= 12.6