I need this quick guys plz

The surface area of a solid object is a measure of the total area that the surface of the object occupies. The mathematical definition of surface area in the presence of curved surfaces is considerably more involved than the definition of arc length of one-dimensional curves, or of the surface area for polyhedra (i.e., objects with flat polygonal faces), for which the surface area is the sum of the areas of its faces. Smooth surfaces, such as a sphere, are assigned surface area using their representation as parametric surfaces. This definition of surface area is based on methods of infinitesimal calculus and involves partial derivatives and double integration.

Answer:

b

Step-by-step explanation:

Answer: c

Step-by-step explanation:

Answer:

The Company should choose to get the cylinder packages  ( V = 42.39 in³ )

Step-by-step explanation:

The volume of a cylinder of radius of circumference 1.5 in  and h = 1.5*4

h  =  6 in   is:

V(c)  =  π *r²*h   =  π * (1.5)²*6   =   π *2.25*6

V(c)  = 42.39 in³

Now V(p) =  Square of the base ( of side 3 in) * h

h  =  6 in

V(p)  =  (3)²*6

V(p)  =  54 in³

If we compare these two volumes we see that the volume of the cylinder is small than that of the square prism

Given:

Length of cloth = 9 yards

Length of pieces = [tex]\dfrac{1}{3}[/tex] yards each

To find:

The number of pieces of cloths after cutting.

Solution:

Let n be the number of required pieces.

Length of each piece is [tex]\dfrac{1}{3}[/tex] yards. So, the length of n pieces is [tex]\dfrac{1}{3}n[/tex] yards.

The length of the whole cloth is 9 yards. So, [tex]\dfrac{1}{3}n[/tex] yards must be equal to 9 yards.

[tex]\dfrac{1}{3}n=9[/tex]

Multiply both sides by 3.

[tex]n=9\times 3[/tex]

[tex]n=27[/tex]

Therefore, the Greata have 27 pieces of cloths.

Answer:I think it’s A or B

Step-by-step explanation:

Answer:

V = four-third (27 pi)

Step-by-step explanation:

Complete question;

A sphere and a cylinder have the same radius and height. The volume of the cylinder is 27 pi feet cubed.

A sphere with height h and radius r. A cylinder with height h and radius r.

Which equation gives the volume of the sphere?

V = two-thirds (27 pi)

V = four-thirds (27)

V = two-thirds (27)

V = four-third (27 pi)

Volume of the cylinder V = πr²h

If Volume is 27pi feet cubed, hence;

27pi = πr²h

27 = r²h

Since r = h

27 = r³

r = ∛27

r = 3

Since the volume of the sphe4/3πr³re = 4/3πr³

Volume of sphere = 4/3π(27)

Volume of sphere = 4/3(27π)

Hence the correct option is V = four-third (27 pi)

Answer:

The better buy is 16 cards for $12.20 because

Step-by-step explanation:

You need to find the individual price for each card in the packet. So first lets do 16 cards for $12.20, you divide $12.20 by 16 to get the price of one card. 12.2/16=0.7625, or about $0.76. Next we do $10.90 divided by 14, 10.9/14=0.7785, or about $0.78, which means 16 cards for $12.20 is the better buy!

Answer:

Las ganancias totales de la empresa B en dicho año fueron de $51.532,90.

Step-by-step explanation:

Dado que una empresa A gana $42.758,35 en un año, y si la empresa B gastara $8.774,55 tendría tantas ganancias como la primera empresa, para determinar cuál es la ganancia total de la empresa B se debe realizar el siguiente calculo:

Ganancias B - 8.774,55 = 42.758,35

Ganancias B = 42.758,35 + 8.774,55

Ganancias B = 51.532,90

Por lo tanto, las ganancias totales de la empresa B en dicho año fueron de $51.532,90.

Answer:

Mizuki here to answer!

The correct answer would be 15 inches!

Step-by-step explanation:

7200 ÷ (24 x 20) = 15

Answer:

Hello! answer: 15

Step-by-step explanation:

The volume is 7200 volume is found by doing length × width × height therefore the height is 15 because... 24 × 20 × 15 = 7200 HOPE THAT HELPS!

Answer:

1/3

Step-by-step explanation:

sample space includes 12 outcomes:

blue, green, yellow for 1, 2, 3, and 4

P(blue) = 4/12 or 1/3

Answer:

325

Step-by-step explanation:

40/100=130/x

Cross multiply to find x

40x=13000

/4            /4

x=325

Answer:

2. t=1.5(d)

Step-by-step explanation:

Part A- t=1.5(d)

Part B- 10.5

Answer:

I don't know, but thanks for the freee points and stuff

Answer:

when

x=1 then f(x)= -5

x=3 then f(x)= 2

x=5 then f(x)= 18

x=12 then f(x)= 15

x=15 then f(x)= 13

Step-by-step explanation:

Answer:

92.5

Step-by-step explanation:

you would add 90+95 which is 185 then divide that by 2 to get ur answer

Answer:C

Step-by-step explanation: 100 x 23/100=23

Answer:

7/18na

Step-by-step explanation:

something like dhat

Answer:

17

Step-by-step explanation:

I think the answer is 17 if helpful please mark me brainliest!

Answer:

12

Step-by-step explanation:

see if you do the math you will find out that its 12         17+12=29

Answer:

153.86 in²

Step-by-step explanation:

Area of circle = [tex]\pi r^2[/tex]

d = 14 inches, r = d/2 = 7 inches

= 3.14 * 7 * 7

= 153.86 in²

Answer:

6(base) x 3.5(Height) = 21, 21 divided by 2 (x 1/2) = 10.5

10.5(area of triangle) x 7.75(width) = 81.375

Formula of an area of a triangle:

BH x 1/2

Base x Height x 1/2(basically just dividing by 2)

Now the base:

1.5 x 7.75 x 6 = 69.75

Now let's add the two given volumes:

81.375+ 69.75 = 151.125 ft^3 is your answer.

Answer:

first find the area of the triangle by the formula of 1/2 b. h ( . means multiply) then find the area of rectangle by the formula of (length . width) then. the area of rectangle -the area of triangle

Answer:

Step-by-step explanation:

It’s c

Answer:

Thanks this can come in handy for me

Answer:

104

Step-by-step explanation:

all the angles of a triangle add up to 180, so set up an equation like this:

x+35+41=180

now solve for x

x=180-35-41

x=104

Answer:

4x + 5

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define

(-4x + 3) + (8x + 2)

Step 2: Simplify

Answer: See explanation

Step-by-step explanation:

Your question isn't complete and I couldn't get the exact question online but let's reframe it and solve it.

The restaurant manager wants to find how much they are spending for pies and cakes. Last week they payed 204$ for 12 pies and 8 cakes. This week, they paid $129 for 5 pies and 7 cakes.

Let's say the cost of pies is x

Let's say the cost of cake is y.

We'll then use the information given to make an equation which will be:

Last week they payed 204$ for 12 pies and 8 cakes. This will be:

12x + 8y = 204........ i

This week, they paid $129 or 5 pies and 7 cakes. This will be:

5x + 7y = 129 ........... ii

Therefore,

12x + 8y = 204........ i

5x + 7y = 129 .......... ii

Multiply equation i by 5

Multiply equation ii by 12

60x + 40y = 1020 ....... iii

60x + 84y = 1548 ........ iv

Subtract iii from iv.

44y = 528

y = 528/44

y = 12

The cost of cake is $12.

From equation i,

12x + 8y = 204

12x + 8(12) = 204

12x + 96 = 204

12x = 204 - 96

12x = 108

x = 108/12

x = 9

The cost of pies is $9.