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
sleet_krkn [62]
3 years ago
13

Without calculating, which has a bigger volume. A cube that has a length, width, and height of 18 m. Or a sphere with a radius o

f 9 m? Explain.
Mathematics
1 answer:
Evgesh-ka [11]3 years ago
3 0

Weird. A period appears above this... huh.

Answer:

[Th]e cube has a greater value.

Step-by-step explanation:

What the word problem really wants us to get [is ]the question of 'Which is greater, A=6a^2 when 'a' [is] 18 or A=4\pir^2 when r = 9? And here's how to solve that.

Starting with the[ c]ube we have A=6a^2. A bit t[o]o simple, right?

A=6(18)^2 Substitute numbers.

A=6(324) Solve ex[p]onents.

A=1944 Mult[i]ply.

So w[e] know that the cube is 1944 meters cube[d ] in area. But what about the more [f]ormidable sphere? Fo[r] it we need a slightly m[o]re co[m]plicated formula, A=4\pir^2. However, instead of using the real pi I will be rounding to 3.14, since we have no calculator so anything more would take way too long and fry your[ bra]in.

A=4(3.14)(9)^2 Subst[i]tute numbers.

A=4(3.14)(81) Solve expone[n]ts.

A=12.56(81) Multip[ly].

A=1017.36 Multiply again[.]

Now, since I'm sure all of us can count, we know that 1944 is greater than 1017.36. Or in other words, the cube is bigger than the sphere.

And PLEASE don't copy this guys. Make your own iteration. Change it up!

You might be interested in
Please help me with this, I don't get it!
Helen [10]
V_B=2x\cdot2y\cdot4=16xy=120\ cm^3\\
V_A=x\cdot y\cdot2=2xy\\\\
16xy=120\ cm^3\\
2xy=15\ cm^3=V_A
5 0
3 years ago
Read 2 more answers
2. What is the y-intercept of this graph?<br> O A. 1<br> O B.-2<br> O C. 2<br> O D.-4
MAVERICK [17]

Answer:

1

Step-by-step explanation:

Because it is where the like crosses with the y axis

3 0
3 years ago
Read 2 more answers
Which of the following are polynomial functions? Check all that apply.​
steposvetlana [31]

Answer:

C and E

Step-by-step explanation:

A polynomial is a function where the only operation is an exponent on the variable. It can have just one term or many terms. For example, x^2 is a polynomial but x^2 / x+3 is not since it also contains division. This is a rational. Using this definition then only C and E are polynomials.

Choice A has a rational term. This is not polynomial.

Choice B has an exponent of -2 which is actually division. This is rational and not polynomial.

Choice D has a radical term with the variable. This is not polynomial.

7 0
3 years ago
To find how high school students feel about hot lunches, Adam walks to the nearest high When a=6 and b=22, c=33. If c varies dir
Delvig [45]

Answer:The equation that models the solution will be

33 = 22k / 6

Step-by-step explanation:

The two types of variation involved in this problem are direct variation and inverse variation.

In direct variation, when one item changes in the positive or negative direction, the other item also changes in the positive or negative direction.

In inverse variation, when one item changes in the positive or negative direction, the other item also changes in the negative or positive direction.

From the information given,

c varies directly with b

If we introduce a direct proportionality constant, k, then,

c = kb

c also varies inversely with a

If we introduce an inverse proportionality constant, k, then,

c = k/b

Therefore, c = kb / a

When a=6 , b=22 and c=33.

The equation that models the solution will be

33 = 22k / 6

8 0
3 years ago
LOOK AT PICTURE,THEN ANWSER QUESTION, WHOEVER ANSWERS CORRECT I WILL MARK BRAINIEST!!
Gnom [1K]
Answer:
B. 4/11

Solution:
Gradient=(y1-y2)/(x1-x2)
Gradient=(6-2)/(4-(-7)) =4/11
3 0
3 years ago
Other questions:
  • Two-fifths of one less than a number is less than three-fifths of one more than that number. What numbers are in the solution se
    5·2 answers
  • Complete the following proof related to the figure below.
    15·2 answers
  • Serious inquiries only please need help
    9·1 answer
  • I don’t know... please help
    11·2 answers
  • Find the slope of a line that passes through the points (4, -2) and (6, -8).
    11·1 answer
  • This table displays the height of a balloon as it floats away.
    15·2 answers
  • Solve using the elimination method <br>x + 5y = 26 <br>- X+ 7y = 22​
    7·2 answers
  • Mrs. Trotta drives 31 miles each day when she goes to work. How many miles does she drive in a 5 day work week?
    8·1 answer
  • Two word problems :)
    15·1 answer
  • The amount of money Camilla earns varies directly with the number of hours she works. If she earns $150 when she works 20 hours,
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!