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4 years ago

10

Hi! can i get some help? Ramadan Mubarak

1 answer:

tensa zangetsu [6.8K]4 years ago

8 0

Answer:

Mode

Step-by-step explanation:

I believe it is mode because mode is the number which appears most in a group of numbers. In the survey he wants to see the most popular, in other words the highest number of votes on a sandwich. Hope this helped. Ramadan Mubarak to you too, im doing this while fasting.

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A cylindrical can without a top is made to contain 25 3 cm of liquid. What are the dimensions of the can that will minimize the

Basile [38]

Answer:

Therefore the radius of the can is 1.71 cm and height of the can is 2.72 cm.

Step-by-step explanation:

Given that, the volume of cylindrical can with out top is 25 cm³.

Consider the height of the can be h and radius be r.

The volume of the can is V= $\pi r^2h$

According to the problem,

$\pi r^2 h=25$

$\Rightarrow h=\frac{25}{\pi r^2}$

The surface area of the base of the can is = $\pi r^2$

The metal for the bottom will cost $2.00 per cm²

The metal cost for the base is =$(2.00× $\pi r^2$ )

The lateral surface area of the can is = $2\pi rh$

The metal for the side will cost $1.25 per cm²

The metal cost for the base is =$(1.25× $2\pi rh$ )

$=\$2.5 \pi r h$

Total cost of metal is C= 2.00 $\pi r^2$ + $2.5 \pi r h$

Putting $h=\frac{25}{\pi r^2}$

$\therefore C=2\pi r^2+2.5 \pi r \times \frac{25}{\pi r^2}$

$\Rightarrow C=2\pi r^2+ \frac{62.5}{ r}$

Differentiating with respect to r

$C'=4\pi r- \frac{62.5}{ r^2}$

Again differentiating with respect to r

$C''=4\pi + \frac{125}{ r^3}$

To find the minimize cost, we set C'=0

$4\pi r- \frac{62.5}{ r^2}=0$

$\Rightarrow 4\pi r=\frac{62.5}{ r^2}$

$\Rightarrow r^3=\frac{62.5}{ 4\pi}$

⇒r=1.71

Now,

$\left C''\right|_{x=1.71}=4\pi +\frac{125}{1.71^3}>0$

When r=1.71 cm, the metal cost will be minimum.

Therefore,

$h=\frac{25}{\pi\times 1.71^2}$

⇒h=2.72 cm

Therefore the radius of the can is 1.71 cm and height of the can is 2.72 cm.

6 0

3 years ago

HELP ASAP. solve for x

svp [43]

Answer:

x = 80

Step-by-step explanation:

x + 30 = 110 (Opposite angles are equal)

x = 110 - 30

x = 80

4 0

3 years ago

If someone was to conduct a study in the field of microeconomics, which of the following questions might the arrempt to answer?

slega [8]

Answer:

When will a firm decision expand, downsize, or close?

hope this helps!!:)

Step-by-step explanation:

4 0

3 years ago

6 people shared 4 subs equally how much each get

telo118 [61]

Answer:

2/3

Step-by-step explanation:

4 subs 6 people

4/6= 0.66 repeated

so each person got 2/3 sub

3 0

3 years ago

Given f(x) = -3x + 5, solve for x when f(x) =<br> - 4.

const2013 [10]

Answer:

x = 3

Step-by-step explanation:

Step 1: Define

f(x) = -3x + 5

f(x) = -4

Step 2: Substitute and Evaluate

-4 = -3x + 5

-9 = -3x

x = 3

4 0

3 years ago

Read 2 more answers