Answer:
u= 18 square millimeters
Step-by-step explanation:
The surface area formula is A=6a^2
You plug in the given surface area (1944) into A.
Divide both sides of the equation by 6. On the left you will get 324 and on the right you will eliminate 6 and get a^2.
The only way to get rid of an exponent is to square root it, and whatever you do to one side you have to do to the other. The square root of 324 is 18 and that is your answer.
Remark
I'm going to interpret this equation as
D = ut + kt² The only difference is the 2.
Solution
Subtract kt² from both sides.
D - kt² = ut Now divide by u on both sides.
The t's cancel out. on the right. You are left with u on the right.
Answer:
7 days
Step-by-step explanation:
If there are 9 pages left, that means you have already read 70 pages.
Since you read 10 pages a day, we can find how many days you have been reading the book by dividing 70 by 10:
70/10
= 7
This means you have been reading the book for 7 days
Perimeter: 20cm
Area: 25cm
Perimeter is adding all the sides together
Area is multiplying two of the sides
Answer:
Step-by-step explanation:
Given
Required:
The area of the swimming pool
Assume the walkway will be on the 4 sides of the swimming pool.
The total length (L) of the swimming pool will be:
The total width (W) will be:
The area (A) is:
Expand bracket
Reorder