A roller coaster rises 400 feet, drops 90 feet, rises 100 feet, and drops 200 feet. Describe the final height of the roller coaster.

210 feet

Step-by-step explanation:

Lets say we start at 0 feet

Now all we gotta do is treat rising as addition and dropping as subtraction

0 + 400 = 400 - 90 = 310 + 100 = 410 - 200 = 210

Therefore your final height is 210. If you need further explanation just ask

A diagram is attached if you're still confused (Sorry about the quality, lightshot does not do curves well)

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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step-by-step explanation:

1. x> -5

2. x< 8

step-by-step explanation:

1. 2x> -10

divide by 2 from both sides of equation.

2x/2> -10/2

simplify, to find the answer.

-10/2=-5

x> -5 is the correct answer.

2. 3x< 24

divide by 3 from both sides of equation.

3x/3< 24/3

simplify, to find the answer.

24/3=8

x< 8 is the correct answer.

i hope this you, and have a wonderful day!