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disa [49]
3 years ago
7

HELP I’m being timed!!!

Mathematics
1 answer:
avanturin [10]3 years ago
5 0
The answer is 54.

Volume is height times width times length. Since a cube has equal sides, you do 3 times 3 times 3. You get 27. Since there are two cubes you do 37 times 2 and get 54.
You might be interested in
The area of a soccer field at 7700 yd.². The width of the field is 70 yards. What is the perimeter of the field?
mario62 [17]
Since you know the area and the width, you can divide the area by the width to find the length. This gives you a length of 110 yards. To find the perimeter of the soccer field, you would add all the side lengths together. Since the width is 70, you would add 70 + 70, along with the length, 110 + 110. This gives you a perimeter of 360.
3 0
3 years ago
What is the maximum volume in cubic inches of an open box to be made from a 12-inch by 16-inch piece of cardboard by cutting out
Romashka-Z-Leto [24]

If you start with a 12x16 rectangle and cut square with side length x, when you bend the sides you'll have an inner rectangle with sides 12-2x and 16-2x, and a height of x.

So, the volume will be given by the product of the dimensions, i.e.

(12-2x)(16-2x)x = 4x^3-56x^2+192x

The derivative of this function is

12x^2-112x+192

and it equals zero if and only if

12x^2-112x+192=0 \iff x = \dfrac{14\pm 2\sqrt{13}}{3}

If we evaluate the volume function at these points, we have

f\left(\dfrac{14-2\sqrt{13}}{3}\right) = \dfrac{64}{27}(35+13\sqrt{13})> f\left(\dfrac{14-2\sqrt{13}}{3}\right) = -\dfrac{64}{27}(13\sqrt{13}-35)

So, the maximum volume is given if you cut a square with side length

x=\dfrac{14-2\sqrt{13}}{3}\approx 2.7

5 0
3 years ago
What is the constant of proportionality, and what method did you use to determine this?
atroni [7]

Answer:

it should be A

Step-by-step explanation:

hope this helps :)

8 0
2 years ago
7x/z=10-r<br><br> solve for x
baherus [9]
Answer is:

x= 10z/7 - rz/7

4 0
3 years ago
What is the rectangle area
pentagon [3]
Length times the width
3 0
3 years ago
Read 2 more answers
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