All categories

2 years ago

A cube has a volume of 64 cubic feet. The surface area of the cube is?

Mathematics

2 answers:

oee [108]2 years ago

8 0

Answer:

The surface area is A≈96ft²

sesenic [268]2 years ago

6 0

The surface area is 96ft2

You might be interested in

Marsha has budgeted no more than $3,000 on centerpieces for the tables at the reception, which inequality represents all possibl

Black_prince [1.1K]

Answer:

$x+y\leq 3000$

Step-by-step explanation:

Given : Marsha has budgeted no more than $3,000 on centerpieces for the tables

x denotes the number of Guest Tables Lily Arrangements

y denotes the number of Family Table Rose Arrangements

To Find: Which inequality represents all possible combinations of x, and y, that Marsha can buy for no more than $3,000?

Solution :

Since there are x number of Guest Tables Lily Arrangements.

And there are y number of Family Table Rose Arrangements

Since she cannot spend more than 3000 on centerpieces .

So, the inequality becomes:

$x+y\leq 3000$

Hence inequality represents all possible combinations of x and y that Marsha can buy for no more than $3,000:

$x+y\leq 3000$

8 0

3 years ago

Dy/dx= y^4 and y(2)= -1. Y(-1)=

cupoosta [38]

It looks like you're asked to find the value of y(-1) given its implicit derivative,

$\dfrac{dy}{dx} = y^4$

and with initial condition y(2) = -1.

The differential equation is separable:

$\dfrac{dy}{y^4} = dx$

Integrate both sides:

$\displaystyle \int \frac{dy}{y^4} = \int dx$

$-\dfrac1{3y^3} = x + C$

Solve for y :

$\dfrac1{3y^3} = -x + C$

$3y^3 = \dfrac1{-x+C} = -\dfrac1{x + C}$

$y^3 = -\dfrac1{3x+C}$

$y = -\dfrac1{\sqrt[3]{3x+C}}$

Use the initial condition to solve for C :

$y(2) = -1 \implies -1 = -\dfrac1{\sqrt[3]{3\times2+C}} \implies C = -5$

Then the particular solution to the differential equation is

$y(x) = -\dfrac1{\sqrt[3]{3x-5}}$

and so

$y(-1) = -\dfrac1{\sqrt[3]{3\times(-1)-5}} = \boxed{\dfrac12}$

6 0

2 years ago

If k(x) = 5x - 6, which<br> expression is equivalent to (k + k)(4)?

kogti [31]

28! hope this helps, you just plug in 4 for x, and then multiply by two.

3 0

3 years ago

Read 2 more answers

Ummm can u plz tell me what u put in these boxes and um answer 4 pls

Lorico [155]

Well your answer for problem 4 is 28. IM not sure what the boxes are for though...

7 0

3 years ago

Question 11 of 45

Bezzdna [24]

Answer:

You are only given a Side, an Angle, and then a side. So that is what I would choose. It can't be AA because you weren't given two angles. It can't be SSS because you weren't given 3 sides.

Step-by-step explanation:

3 0

3 years ago