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3 years ago

3a. The distance around a circular track. Circumference Area HELP ASAP

Mathematics

1 answer:

gulaghasi [49]3 years ago

5 0

The distance around a circle on the other hand is called the circumference :)

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A company made a storage container with sheet steel walls. The container was in the shape of a rectangular prism, as shown below

nirvana33 [79]

The missing figure is attached

Answer:

The sheet steel costed $22.41 per square meter

Step-by-step explanation:

To find the cost per square units find the lateral area (they will made the walls only) of the rectangular prism and divide the cost of the steel sheet by it

The formula of the lateral area of the rectangular prism is:

LA = perimeter of base × height

∵ The length of the base is 9 m

∵ The width of the base is 5 m

∵ The height of the prism is 7 m

- Find the perimeter of the base

∵ Perimeter of base = 2(length + width)

- Substitute the values of the length and the width

∴ Perimeter of base = 2(9 + 5) = 28 m

Now use the formula of the lateral area to get it

∵ LA = 28 × 7

∴ LA = 196 m²

Let us find the cost per square meter

∵ The total cost of the sheet steel was $4392

∵ The lateral area of the container is 196 m²

- Divide the cost by the lateral area

∴ The unit cost = 4392 ÷ 196

∴ The unit cost = 22.41 dollars to the nearest cent

The sheet steel costed $22.41 per square meter

4 0

3 years ago

What is an equation of the line that passes through the points (1, 8) and (-1, -2)

hichkok12 [17]

Answer:

Step-by-step explanation:

(1,8) (-1,-2)

Slope: (-2-8)/(-1-1) = -10/-2 = 5

y -8 = 5 (x - 1)

y - 8 = 5x - 5

y = 5x +3

3 0

3 years ago

PLEASE HELP ME MATCH THEM!! I’m in need please. Match each value with its formula ABC.

dezoksy [38]

Answers are like this: 1)Cos C 2)Cos B 3)Cos A 4)a 5)b 6)c all of them are different type of writing cosines law , just this.

4 0

3 years ago

Read 2 more answers

Kim has a strong first serve; whenever it is good (that is, in) she wins the point 70% of the time. Whenever her second serve is

mestny [16]

Lets put ti this way:
P[1st serve good & wins point] = 60% * 70% = 42% = A
P[2nd serve good & wins point] = 40% * 76% *57% = 17.328% = B 

1. P[win point] = A+B = C = 59.328% <------- 
2. P[1st serve good | win point ] = A/C = 42 / 59.328 = 0.707 or 70.7%
Please remember that 2nd serve come into use only if 1st serve is not good

4 0

3 years ago

Matthew completed 5/8 of his workday. What decimal would also describe the portion of the workday he has finished? How can you u

Natalija [7]

Answer:

a)D= 0.625 Decimal that describes the portion of the workday he has finished

b)P= D*100= 0.625*100=62.5%

P: percentaje

D: Decimal

Step-by-step explanation:

Nomenclature

F: fraction of daily workday

D: decimal of daily workday

P: percentage of daily workday

Formulas

F= a/b

D= a÷b

P= D*100

Problem development

We have:

F = 5/8, then:

D= 5÷8= 0.625

To obtain the percentage of the workday that Matew has completed, we multiply the decimal x 100

P= 0.625*100=62.5%

6 0

4 years ago