Since a cube is l x w x h, find the length of one side first:
∛8,000 = 20
The length of one side is 20 feet. This can represented as "s".
To find the area of one of the faces, use s²:
20² or 20 x 20 = 400
The area of one face is 400 ft²!
Answer:
There were 140 robberies in Springfield in 2012.
Step-by-step explanation:
Let's marked (named) robberies in 2012 with x, which is worth 100%
196 robberies in 2013 worth 100% + 40% = 140%
Now we will make proportion
x : 196 = 100 : 140
When we multiply external and internal members we get
140 x = 196 · 100 => 140 x = 19600 => x = 19600/140 = 140
x = 140 robberies in 2012
Since we are trying to find the adult seats, we'll set that to x. Now the student section is 2x + 25. The total seats is 130 which is the student section and adult section added together. So now we can write an equation from the information given...
Students + adults = 130
(2x + 25) + x = 130
2x +25 +x = 130
2x + x + 25 = 130
3x + 25 = 130
3x = 130 - 25
3x = 105
x = 105/3 = 35
So there are 35 adult seats (remember we set adults to x)
Now we substitute back into the equation to find the students seats. As you recall students = 2x + 25
Students = 2x + 25
Students = 2(35) + 25
Students = 70 + 25
Students = 95
There are 95 student seats and 35 adult seats.
Answer:
B) 78 feet
Step-by-step explanation:
Just took the test
Answer:
Option D is the correct option
Step-by-step explanation:
Let the sets be A and B.
A = { 1 , 2 , 3 , 4 , 5 }
B = { 2 , 4 , 6 , 8 , 10 }
<u>Finding </u><u>A</u><u> </u><u>union</u><u> </u><u>B</u><u> </u><u>(</u><u> </u><u>A</u><u> </u><u>∪</u><u> </u><u>B</u><u> </u><u>)</u>
<u>The</u><u> </u><u>union</u><u> </u><u>of </u><u>sets</u><u> </u><u>A</u><u> </u><u>and</u><u> </u><u>B</u><u> </u><u>is </u><u>the </u><u>set </u><u>of </u><u>all</u><u> </u><u>elements</u><u> </u><u>which</u><u> </u><u>belongs</u><u> </u><u>either</u><u> </u><u>A</u><u> </u><u>or </u><u>B</u><u> </u><u>or</u><u> </u><u>both</u><u> </u><u>A</u><u> </u><u>and</u><u> </u><u>B</u>
So, list them :
A ∪ B = { 1 , 2 , 3 , 4 , 5 , 6 , 8 , 10 }
Hope I helped!
Best regards! :D
