1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lakkis [162]
3 years ago
8

What value of r makes the following true? r^3=512

Mathematics
1 answer:
Pani-rosa [81]3 years ago
8 0

Answer:

r=8

Step-by-step explanation:

To solve this, we need to get the variable,  r, by itself.

r^3=512

r is being cubed. To undo this and isolate r, we can take the cube root of both sides. This will cancel out the exponent, and leave r by itself.

∛r^3=∛512

r=∛512

r=8

If we want to check the solution, substitute 8 in for r.

r^3=512

8^3=512

8^3 is the same as 8*8*8

8*8*8=512

64*8=512

512=512

This is true, so we know that r is 8.

You might be interested in
Please Help will Give brainlist.
poizon [28]
Constant of proportionality is 4

equation: x/y = 4

explanation:
let's take 20 and 5 for example, if you divide 20 by 5, you will 4 of course. that's the proportionality for the first one. if you continue to divide x value by y value you will get 4. for the last two you would divide 28 by 4 and multiply 8 by 4.
5 0
3 years ago
Read 2 more answers
The owner of the Rancho Grande has 3,060 yd of fencing with which to enclose a rectangular piece of grazing land situated along
Pavel [41]

Answer:

1170450 yd^2

Step-by-step explanation:

The first thing is to calculate the necessary perimeter, which would be like this:

2 * a + b = 3060

if we solve for b, we are left with:

b = 3060-2 * a

Now for the area it would be:

A = a * b = a * (3060-2 * a )

A = 3060 * a -2 * a ^ 2

To maximize the area, we calculate the derivative with respect to "a":

dA / da = d [3060 * a -2 * a ^ 2

]/gives

dA / day = 3060 - 4 * a

If we equal 0:

0 = 3060 - 4 * a

4 * a = 3060

a = 3060/4

a = 765 and d

Therefore b:

b = 3060 - 2 * a = 3060 - 1530 = 1530

A = a * b

A = 765 * 1530

A = 1170450 and d ^ 2

3 0
3 years ago
2.6-,2.061,2.601,2.34,2.7 order the following from least to greatest
kondaur [170]

Answer:

2.061, 2.34, 2.6, 2.601, 2.7

Step-by-step explanation:

Hello!

This is a bit hard to explain! If you want me to try, just comment.

I have arranged the sequence in ascending order below:

2.061,\:2.34,\:2.6,\:2.601,\:2.7.

Hope this helps!

4 0
3 years ago
Read 2 more answers
What is the Pythagorean triple generator and how does it work?​
r-ruslan [8.4K]

Answer:

Step-by-step explanation:

The Pythagorean Theorem states that

a^2+b^2=c^2

or that the two legs added together squared equal the hypotenuse squared

not: this only works with right triangles

Now Pythagorean triples are the set of sides that follow that rule

an example would be 3,4,5

why is it a Pythagorean triple?

well because it follows

a^2+b^2=c^2

3^2=9\\4^2=16\\16+9=25\\5^2=25

25=25

7 0
3 years ago
Explain what can happen if you line up the digits incorrectly when you rewrite additional problem
Natasha_Volkova [10]
So basiclly you will end up getting the wrong answer. For example 234+23.
If you lined it up incorrectly you might get 464. It is actually 257. This is wy you should line it up correctly.
~JZ
Hope it helps! Good Luck!

8 0
3 years ago
Read 2 more answers
Other questions:
  • 88.83 is what percent of 21?
    9·2 answers
  • You have a roll of tape that is 60 meters long. How many yards do you have? Note: 1 yd = .9144 meter. A)50 yards B) 60 yards C)6
    13·2 answers
  • Solve these equations. Show solutions on a number line.<br><br> |x+8|=x+8<br><br>​
    9·1 answer
  • Each morning Papa notes the birds feeding on his bird feeder. So far this month, he has seen 59 blue jays, 68 black crows, 12 re
    14·1 answer
  • miley is trying to solve the following riddle: "the sum of three consecutive integers is 84. what are the integers?"
    10·1 answer
  • a survey was taken of children between the ages 7 and 12. let A be the event that the person rides the bus to school, and let B
    8·1 answer
  • What is the slope of the line that passes through the points (6,-10) and
    10·1 answer
  • A small box measures 7 in. by 10 in. by 3 in. high. Find the volume of the box.
    7·2 answers
  • Help ill give brainlest
    12·1 answer
  • Find the GCF of the numbers using lists of factors. 1. 8,36. 2. 18,72. 3. 14, 28, 49​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!