3 years ago

What is the length of each edge of a cube if its surface area is 486 square units?

1 answer:

4 0

SA = 2LW + 2LH + 2WH

Since it is a cube, all of the dimensions, LWH, will be the same.

SA = 2s^2 + 2s^2 + 2s^2

SA = 6s^2486 = 6s^2

Divide both sides by 681 = s^2Take the square root of both sides. 9 = s

Hope this helped☺☺

You might be interested in

What is a equation of the graph of the equation below translated down 3 units y=-x^2

aniked [119]

To move a graph up c units, add c to whole function

going up a negative distance is the same as going down that same distance but positive

so to move y=-x^2 up by -3 units, add -3 to the whole function so we get
$y=-x^2-3$ as the translated equation

5 0

3 years ago

Can you guys give me the steps for this plus the answer?

Alex_Xolod [135]

Answer:

x = -9

Step-by-step explanation:

First rearrange the terms.

-6x - 6x +3 = 111

Add like terms

-12x + 3 = 111

Subtract 3 from both sides

-12x = 108

Divide -12 on both sides

x = -9

3 0

2 years ago

Read 2 more answers

Please help me 123 or 4

butalik [34]

Answer:

Step-by-step explanation:

because divide Pt from both sides to get r=i/(pt)

8 0

3 years ago

the cost to rent a jet ski is $80 per hour. you must also pay a flat fee of $25 for a lesson on how to use the jet ski. write th

motikmotik

Y=mx+b
y=80x+25
for every hour you must pay 80$
how many hours is X
and B is the rate you must pay anyway for the lesson and how many hours you have rented.

4 0

4 years ago

What would your body temperature be if you had a fever?

pickupchik [31]

D because your body is the same but lowers because the ground mostly has more moist which gets wet and makes you colder. So yes, it’s d

6 0

3 years ago

Read 2 more answers