Answer:
81 pi
Step-by-step explanation:
formula for area of a circle-pi times radius squared
18/2=9
9 squared 81
answer-81 pi
Answer:
The correct answer is in bold below written in two different ways. I think that the two middle options of your problem were given by mistake. The correct answer is not in the options.
Step-by-step explanation:
cost of yogurt = cost of toppings + cost of yogurt with 1 topping
cost of yogurt with 1 topping = $3.65
cost of yogurt = cost of toppings + 3.65
cost of 1 additional topping = $0.45 * 1
cost of 2 additional toppings = $0.45 * 2
cost of x additional toppings = $0.45 * x = 0.45x
Since 1 topping is included in the $3.65 charge, if you pay for x additional toppings, you will have x + 1 total number of toppings. That means you must pay for only x - 1 additional toppings to have a total of x toppings.
One topping is already included in the $3.65 charge, so you pay for only x - 1 additional toppings.
cost of x - 1 additional toppings = 0.45(x - 1)
cost of yogurt = 0.45(x - 1) + 3.65
y = 0.45(x - 1) + 3.65
y = 0.45x - 0.45 + 3.65
y = 0.45x + 3.2
Answer:
S(r) = 3*π*r^(2)
V(r) = π*r^(3)/2
S(v) = 3*π* (cubic roof (2*V(r)/π)^(2)
Step-by-step explanation:
S(r) = lateral area + (area of base + area of top)
S(r) = 2*π*r*h + 2*π*r^(2) S(r) =2*π*r*r/2 + 2*π*r^(2) = π*r^(2) + 2π*r^(2)
S(r) =3*π*r^(2)
V(r) =π*r^(2)*h since h=r/2 V(r) =π*r^(3)/2
r^(3) = 2*V(r)/π r = cubic roof (2*V(r)/π)
And S(v) = 3*π* (cubic roof (2*V(r)/π)^(2)
Ok, so a line with a perpendicular slope will have the opposite reciprocal slope, meaning that if the slope on y=-4x-7 is -4, the opposite reciprocal slope would be 1/4. so, if you plug the given point into your new line,
y=1/4x+b
1=1/4(4)+b
1=1+b
b=0
so, the final equation would be y=1/4x
(i think?)
