Answer:
15-9=6 So the answer is B. 6
Answer: Answer:
a.)x² + y² = 900
b.)y = √900 - x²
Step-by-step explanation:
P.S - The exact equation is as follows :
As given,
The shape of the roller coaster is a half of a circle. Center the circle at the origin and assume the highest point on this leg of the roller coaster is 30 feet above the ground.
a.)
Equation of circle be x² + y² = r²
As given , leg of the roller coaster is 30 feet above the ground.
⇒ r = 30
⇒x² + y² = 30²
⇒x² + y² = 900
∴ we get
Equation of height of Roller coaster - x² + y² = 900
b.)
As we have, x² + y² = 900
⇒y² = 900 - x²
⇒y = √900 - x²
Step-by-step explanation:
Answer:
$1.60 tip on a $8 sandwich
Step-by-step explanation:
SO to find percent
just multiply the number by the percent
Remeber the percent means x/100
SO in this case 20/100 or 1/5
So you can just multiply 1/5*8 and get 1 3/5.
If you convert 3/5 into a decimal
3 divided by 5
that is .6
SO add them up
1+0.6= $1.60
Answer:
Slope= -7
Step-by-step explanation:
I like to use the rise/run method.
Take the point at (1,-2) and count up to (1, 7). Then because it is going left, you count your run over 3 points. Or you could do.