Determine whether the relation is a function. Explain 4. (7, 4), (5, -1), (3, -8), (1, -5), (3, 6)
6. Input x Input y (-10 and -8 connect to 1, -6, -4, and -2 connect to 2)
-10 1
-8 2
-6
-4
-2
8. Input x ) -3, 0, 3, 6, 9
Input y ) 11, 5, -1, -7, -13
18. The function y = 3.5x + 2.8 represents the cost y (in dollars) of a taxi ride of x miles.
a. identify the independent and dependent variables.
b. you have enough money to travel at most 20 miles in the taxi. Find the domain and range of the function.
20. y = √6 - x
22. y = 8 / x - 1
24. Input x ) 1, 2, 3, 4, 5
Input y ) 6, 7, 8, 6, 9
Correct- The relation is not a function. One output is paired with two inputs.
26. Correct- the relation is a function. The domain is 1, 2, 3, 4, 5, 6, 7, 8, and 9.

answer: ratio of volume of cone (with 3 times the height and equal diameter) to volume of cylinder is 2 to 1. the value of π is not used.

step-by-step explanation:

radius is diameter/2 = 4.

area of circle is π r^2.

volume of cylinder is height × area of base = hπr^2 = 3(4^2) π = 48π cubic inches.

not knowing the formula for volume of cone, i calculate it using calculus (which is for calculating things).

volume of cone is integral 0 to h area(y) dy. area(y) is π r(y)^2. r(y) runs r to zero as y runs zero to h, r(0) = r, r(h) = 0.

r(y) = r - r/h y

area(y) = π (r - r/h y)^2 = π (r^2 - 2r^2y/h + r^2y^2/h^2) = π r^2(1-2y/h+y^2/h^2)

antiderivative area(y) = π r^2 (y-y^2/h+y^3/(3h^2))

integral 0 to h = π r^2(h-h^2/h+h^3/(3h^2) - (0)) = π r^2(h - h + h/3) = π r^2(h/3) = π/3 r^2 h

volume of this cone is π/3(4^2)18 cubic inches.

= 6 16 π = 96π cubic inches.

cone has twice the volume, 96/48.

cone height is 6 times the cylinder.

ratio of volume formula: π r^2 cancels.

cone over cylinder ratio is 6h/3 to h, 2 to 1.

sure i'm up for it

step-by-step explanation:

where is abdul's work? don't see that anywhere posted : /

step-by-step explanation:

what are you doing do you need examples of variable questions?

step-by-step explanation:

5a-1=9               bring the one over the =

5a=10                     divide by your variable

a=2

brainliest? ?

here try this one

3a-24=0