subject
Mathematics, 20.09.2019 08:30 Destinysills9325

Which is the correct solution to the cubic equation, ^3 sqr 2x-3 = -3.

Answers

ansver
Answer from: Quest
Is 8.50 an answer or no? ?
ansver
Answer from: Quest

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.

ansver
Answer from: Quest

the first one

step-by-step explanation:

just id the test.

ansver
Answer from: Quest

the answer is su.k.my? ? co.kc

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 18:00, puppylover72
Solve this and show you’re work step by step ! -5 3/4+3h< 9 1/4 -
Answers: 1
image
Mathematics, 21.06.2019 19:20, alexcarrasco5903
1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?
Answers: 3
image
Mathematics, 21.06.2019 22:00, jasmineanitak16
Using inductive reasoning, what is the next two numbers in this set? 1,-7,13,-19 i got the numbers 14,-26 is that right?
Answers: 2
image
Mathematics, 21.06.2019 23:30, huneymarie
What are the coordinates of the image of p for a dilation with center (0, 0) and scale factor 2
Answers: 1
You know the right answer?
Which is the correct solution to the cubic equation, ^3 sqr 2x-3 = -3....