<u>Given</u><u>:</u>
- Area of rectangular prism ( cuboid ) = 448 cm²
<u>To</u><u> </u><u>find</u><u> </u><u>out</u><u>:</u>
Find the height, h ?
<u>Formula </u><u>used </u><u>:</u>
Area of rectangular prism ( cuboid ) = 2 ( lb + bh + hl )
<u>Solution</u><u>:</u>
We know that that,
Area of rectangular prism ( cuboid ) = 2 ( lb + bh + hl )
=> 448 = 2 ( 14 × 6 + 6 × h + h × 14 )
=> 448 = 2 ( 84 + 6h + 14h )
=> 448 = 2 ( 84 + 20h )
=> 448 = 168 + 40h
=> 40h = 448 - 168
=> 40h = 280
=> h = 280/40
=> h = 7 cm
Answer:
Last part 24x
Step-by-step explanation:
I understand some of this, like the last question. if each class had 24 pupil, and were trying to find out how many are in each class, it would be 24x (x stands for the amount of classes)
You have not given a true amount of pupils so I can not give a 100% correct answer for the first part.
Answer:
$40
Step-by-step explanation:
If she needs a total of 47 bands and she already has 7 that means she only needs 40 more bands. If the bands are $1 per band we do 40 x 1 to get 40
Answer:
C
Step-by-step explanation:
An approximation of an integral is given by:
First, find Δx. Our a = 2 and b = 8:
The left endpoint is modeled with:
And the right endpoint is modeled with:
Since we are using a Left Riemann Sum, we will use the first equation.
Our function is:
Therefore:
By substitution:
Putting it all together:
Thus, our answer is C.
*Note: Not sure why they placed the exponent outside the cosine. Perhaps it was a typo. But C will most likely be the correct answer regardless.
Answer:
500 miles an hour
Step-by-step explanation:
First off, find out how many sets of 12 minutes are in 1 hour. In other words 60 minutes divided by 12 minutes. The answer would be five. 100/12*5=500/60
The 60 represents the number of minutes. Hope that helps, good luck with homework :)