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3 years ago

15

A rectangular box with a volume of 784 ft3 is to be constructed with a square base and top. the cost per square foot for the bot

tom is 15¢, for the top is 10¢, and for the sides is 1.5¢. what dimensions will minimize the cost

1 answer:

iVinArrow [24]3 years ago

8 0

I think it is 15 so I don’t know that if it right

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What is 5/6 * 3/7 ÷ 2/3

Butoxors [25]

Answer:

5/6 × 3/7 ÷ 2/3 = 45/84

Step-by-step explanation:

5/6 × 3/7 = 15/42

5 × 3 = 15

6 × 7 = 42

15/42 ÷ 2/3

15/42 × 3/2

15 × 3 = 45

42 × 2 = 84

15/42 × 3/2 = 45/84

6 0

3 years ago

tennis balls with a diameter of 2.5in are sold in cans of three. the can is a cylender. what is the volume of the area not occup

mina [271]

Answer:

The volume of the area not occupied by the tennis balls is 12.28 cubic inches.

Step-by-step explanation:

It is given that tennis balls with a diameter of 2.5in are sold in cans of three. the can is a cylinder.

Radius of ball = Radius of can = $\frac{2.5}{2}=1.25$

Height of can = $2.5\times 3=7.5$

The volume of sphere is

$V=\dfrac{4}{3}\pi r^3$

where, r is radius of sphere.

The volume of a tennis balls is

$V=\dfrac{4}{3}\pi (1.25)^3$

$V=8.18123$

$V\approx 8.18$

Volume of three tennis balls is

$V_1=3\times 8.18=24.54$

The volume of cylinder is

$V=\pi r^2h$

The volume of can is

$V_2=\pi (1.25)^2(7.5)$

$V_2=36.81553$

$V_2\approx 36.82$

The volume of the area not occupied by the tennis balls is

Volume = Volume of cylinder - Volume of three tennis balls

= 36.82 - 24.54 = 12.28 inches

Therefore, the volume of the area not occupied by the tennis balls is 12.28 cubic inches.

3 0

3 years ago

WHAT IS THE EQUATION OF THE LINE IN SLOPE - INTERCEPT FORM

Maksim231197 [3]

Y=10x-40
i hope that helps!!

5 0

2 years ago

15 cm<br> 16.6 cm<br> area<br> cm2

Ymorist [56]

Answer:

357.1573 (If you don't round)

Step-by-step explanation:

To find area of a rectangle is to multiply length by width, which in this situation would be 15 by 16.6, which is equal to 249. Next, we need to add this to the area of the semicircle. The area of a semicircle is equal to 1/2 * pi * radius^2 (Because a semicircle is half a circle and a circle's area is pi * radius^2). The radius is equal to half the diameter, which in this case is 16.6. 16.6/2 = 8.3, so the radius is 8.3. If we plug this into the equation, we get that 108.1573 is the area of the circle (If you use 3.14 as pi). 108.1573 + 249 is equal to 357.1573.

7 0

3 years ago

The value of n is both 5 times as much as the value of m and 36 more than the value of m. What are the values of n and m? Explai

tia_tia [17]

N = 5m
n = m + 36

since n is equal to both the expression in m we can say:-

5m = m + 36
4m=36

m = 9

and n = 5*9 = 45

3 0

3 years ago