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3 years ago

5

7 minutes to half an hour

2 answers:

Harlamova29_29 [7]3 years ago

6 0

Hjhhnffhjdethhgsfkjjdcgyy

Orlov [11]3 years ago

3 0

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James has 6 stamps in his stamp collection. Roy has 12 stamps in his stamp collection. James adds 2 stamps to his stamp collecti

Stolb23 [73]

Answer:

D

Step-by-step explanation:

Using process of elimination we know that it cannot be a,b or c because after you add the 2 new stamps james collected the ratio is 8:12 which cannot be 1:2 because 8 is not half, can't be B because 8 is less than 12, Also cannot be C because 8 is less than 12

8 0

3 years ago

Evaluate the function.<br> f(x) = -x^2<br> Find f(-5)

mina [271]

1) plug -5 in for the place of x.
2) solve -(-5)^2
3) f(-5)=25

4 0

3 years ago

Vhich expression is equivalent to 16^3

LenKa [72]

Answer:16×16×16

Step-by-step explanaution:

16 ^3 so that means you need to but 16 3 times

6 0

3 years ago

A storage shed is to be built in the shape of a (closed) box with a square base. It is to have a volume of 150 cubic feet. The c

Alenkinab [10]

Answer:

$C(s) = 6s^2 + \dfrac{1500}{s}\\\text{where s is the side of base.}$

Step-by-step explanation:

We are given the following in the question:

A storage shed is to be built in the shape of a (closed) box with a square base.

Volume = 150 cubic feet

Let s be the edge of square base and h be the height.

Volume of cuboid =

$l\times b\times h$

where l is the length, b is the base and h is the height.

Volume of box =

$s^2h = 150\\\\h = \dfrac{150}{s^2}$

Area of base =

$\text{side}\times \text{side} = s^2$

Cost of concrete for the base = $4

Cost of base($) = $4s^2$

Area of roof =

$\text{side}\times \text{side} = s^2$

Cost of material for the roof = $2

Cost of roof ($) = $2s^2$

Area of 4 walls =

$4\times (sh)\\=4sh$

Cost of material for the side = $2.50

Cost of material of side($) =

$2.50\times 4s(\dfrac{150}{s^2})\\\\=\dfrac{1500}{s}$

Total cost

= Cost of base + Cost of 4 sides + Cost of roof

$C(s) = 4s^2 + \dfrac{1500}{s} + 2s^2\\\\C(s) = 6s^2 + \dfrac{1500}{s}$

is the required cost function.

5 0

3 years ago

frozen [14]

Answer:

it would take seven and a half hours

Step-by-step explanation:

450 ÷60 =7.5

8 0

3 years ago