3] What is - 2y + 10 + 2y - 8 simplified? a) – 4y + 18
C) 18
b) 4y + 2
d) 2
Expressions

d. 2

Step-by-step explanation:

-2y +10+2y-8

10-8. ( -2y+2y = 0)

2

d) 2

Step-by-step explanation:

We can first combine like terms

-2y + 2y = 0

Now, our expression is simply 10 - 8, which is 2

So, the answer is

d) 2

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.