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3 years ago

8

Pls ansewr this an before you say anything about this being a test I tried everything but my mind isn't comprehending what to do

i already did half of this question too so yea :(

2 answers:

kati45 [8]3 years ago

8 0

SHE GAVE HIM 7 SHELLS and this makes him have 16 shells while she has 48 which just happens to be 3 times as much as he has.

puteri [66]3 years ago

6 0

Answer:

Step-by-step explanation:

she gives 28 shells to dev

You might be interested in

What is the measurement in degrees and radians for the rotation of counter-clockwise 5/3

irga5000 [103]

I am assuming 5/3 refers to 5/3rds of a full revolution.
radians is easier for now so I'll do that first. on full revolution = 2π radians, but you have 1 and 2/3rds revolutions, so that is 2π+2π*(2/3)=10π/3 radian turn
to convert from radians to degrees multiply the radians by 180/π, so (10π/3)*(180/π) => 600degrees
Final answer:
5/3 turn is 600 degrees and 10π/3 radians
Hope I helped :)

5 0

4 years ago

The base and sides of a container is made of wood panels. The container does not have a lid. The base and sides are rectangular.

vfiekz [6]

Answer:

Minimum surface area = $70.77 cm^2$

Step-by-step explanation:

We are given that

Width of container=x cm

Length of container=2x cm

Volume of container= $54 cm^3$

We have to find the minimum surface areas that this container will have.

Volume of container= $l\times b\times h$

$x\times 2x\times h=54$

$2x^2h=54$

$h=\frac{54}{2x^2}=\frac{27}{x^2}$

Surface area of container= $2(b+l)h+lb$

Because the container does not have lid

Surface area of container= $S=2(2x+x)\times \frac{27}{x^2}+2x\times x$

$S=\frac{162}{x}+2x^2$

Differentiate w.r.t x

$\frac{dS}{dx}=-\frac{162}{x^2}+4x$

$\frac{dx^n}{dx}=nx^{n-1}$

Substitute $\frac{dS}{dx}=0$

$-\frac{162}{x^2}+4x=0$

$4x=\frac{162}{x^2}$

$x^3=\frac{162}{4}=40.5$

$x^3=40.5$

$x=(40.5)^{\frac{1}{3}}$

$x=3.4$

Again differentiate w.r.t x

$\frac{d^2S}{dx^2}=\frac{324}{x^3}+4$

Substitute x=3.4

$\frac{d^2S}{dx^2}=\frac{324}{(3.4)^3}+4=12.24>0$

Hence, function is minimum at x=3.4

Substitute x=3.4

Then, we get

Minimum surface area = $\frac{162}{(3.4)}+2(3.4)^2=70.77 cm^2$

8 0

3 years ago

What is the correct answer

nevsk [136]

The correct answer for this question is 4

8 0

3 years ago

Read 2 more answers

The sides of a triangle are 5:8:10 and it's perimeter is 23 cm. find the area of triangle.

Tju [1.3M]

Answer:

19.81cm^2

Step-by-step explanation:

To solve this, you need to use Heron's formula. Heron's formula solves for the area of a triangle given 3 sides defined as a, b, and c, as well as the perimeter. In this formula, p is half of the perimeter. The formula is:

sqrt(p*(p-a)*(p-b)*(p-c))

Plugging the values into this formula gives 19.81cm^2.

8 0

3 years ago

The A+ Cell Company charges $40 per month and $0.30 per minute for each additional minute over 500 minutes. The cost can be writ

adelina 88 [10]

Answer:

up 10

Step-by-step explanation:

The function would change from

C(x) = 0.3x + 40

to

C(x) = 0.3x + 50

The change is only to the y-intercept, so the graph of the function will move up 10.

8 0

2 years ago