All categories

3 years ago

Need help!! Anyone ?

Mathematics

1 answer:

VMariaS [17]3 years ago

4 0

Me I need help plz help me

You might be interested in

Why did the physiocrats oppose mercantilism?

Alexxandr [17]

Answer:

Mercantilism allowed for government regulation of trade, which interfered with natural market forces.

7 0

3 years ago

cylinder shaped can needs to be constructed to hold 200 cubic centimeters of soup. The material for the sides of the can costs 0

Dafna11 [192]

Answer:

Radius=2.09 cm

Height,h=14.57 cm

Step-by-step explanation:

We are given that

Volume of cylinderical shaped can=200 cubic cm.

Cost of sides of can=0.02 cents per square cm

Cost of top and bottom of the can =0.07 cents per square cm

Curved surface area of cylinder= $2\pi rh$

Area of circular base=Area of circular top= $\pi r^2$

Total cost,C(r)= $0.02\times 2\pi rh+2\pi r^2\times 0.07$

Volume of cylinder, $V=\pi r^2 h$

$200=\pi r^2 h$

$h=\frac{200}{\pi r^2}$

Substitute the value of h

$C(r)=0.02\times 2\pi r\times \frac{200}{\pi r^2}+2\pi r^2\times 0.07$

$C(r)=\frac{8}{r}+0.14\pi r^2$

Differentiate w.r.t r

$C'(r)=-\frac{8}{r^2}+0.28\pi r$

$C'(r)=0$

$-\frac{8}{r^2}+0.28\pi r=0$

$0.28\pi r=\frac{8}{r^2}$

$r^3=\frac{8}{0.28\pi}=9.095$

$r=(9.095)^{\frac{1}{3}}=2.09$

Again, differentiate w.r.t r

$C''(r)=\frac{16}{r^3}+0.28\pi$

Substitute the value of r

$C''(2.09)=\frac{16}{(2.09)^3}+0.28\pi=2.63>0$

Therefore,the product cost is minimum at r=2.09

h= $\frac{200}{\pi (2.09)^2}=14.57$

Radius of can,r=2.09 cm

Height of cone,h=14.57 cm

4 0

3 years ago

In the expression -3×+4y-2 what are the variables

SSSSS [86.1K]

Answer:

x and y are the variables

7 0

2 years ago

There were 200 people at the baseball game. Each of them bought a $8 ticket to get into the game. How much money did the people

irina1246 [14]

8 x 200

= 8 x 2 x 100

= 16 x 100

= 1,600

--------------

Answer:

$1,600

7 0

3 years ago

Read 2 more answers

show two ways that four people can share 6- segment chewy fruit worm. In each case how many segments that each person gets?

KengaRu [80]

1 1/2

6÷4=1. 1/2

so i hope this is what your looking for

3 0

3 years ago