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3 years ago

Slope-intercept form. need help!

Mathematics

1 answer:

belka [17]3 years ago

4 0

Answer:

y=mx+b

Step-by-step explanation:

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What is the surface area of the figure? Can you please explain how to get it

goldenfox [79]

Answer:

The surface area of the solid = 582 feet²

Step-by-step explanation:

* At first lets study the solid

- it consists of 8 faces

- One base with dimensions 15 and 4 feet (1)

- Two side faces L-shaped with dimensions 15 , 4 , 9 ad 6 feet (2)

- One side face with dimensions 4 and 15 feet (3)

- One side face with dimensions 9 and 4 feet (4)

- One side face with dimensions 6 and 4 feet (5)

- One top base with dimensions 9 and 4 feet (6)

- One top base with dimensions 6 and 4 feet (7)

* Now lets find the area of the faces

- A(1) = 15 × 4 = 60 feet² ⇒ rectangular face

* We can find the area of L-shaped by this way

∵ Area of the square face = 15 × 15 = 225 feet²

∵ Area of the small rectangle = 9 × (15 - 9) = 54 feet²

- Lets subtract the area of the small rectangle from the area of

the square, to find the area of the L-shaped

- A(2) = 2 ( 225 - 54) = 2 (171) = 342 feet²

- A(3) = 4 × 15 = 60 feet² ⇒ rectangular face

- A(4) = 9 × 4 = 36 feet² ⇒ rectangular face

- A(5) = 6 × 4 = 24 feet² ⇒ rectangular face

- A(6) = 9 × 4 = 36 feet² ⇒ rectangular face

- A(7) = 6 × 4 = 24 feet² ⇒ rectangular face

* Lets add all of these areas to find the surface area of the solid

∴ The S.A = 60 + 342 + 60 + 36 + 24 + 36 + 24 = 582 feet²

5 0

2 years ago

Jake packed 3 pairs of shorts for a trip: 1 khaki and 2 denim. He

sladkih [1.3K]

Answer:

I’m not sure but I think it’s the third one

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Calvin work as an air conditioning contractor the customer wants to buy an air condition for his family room his room measure 30

Verdich [7]

ANSWER

$3840 {ft}^{3}$

EXPLANATION

The room represents a rectangular prism or a cuboid.

The dimensions of the room are 30 feet by 16 feet by 8 feet(height).

The volume of a rectangular prism is

$= base \: area \: \times \: height$

Substitute the given values

$= 30 \times 16 \times 8 {ft}^{3}$

Simplify:

$= 3840 {ft}^{3}$

Hence the cubic feet of air in the room is 3,840ft³.

6 0

3 years ago

Given the function below, find f(7) f(x)=-x^2+9x

sashaice [31]

Answer:

f(x) = 7

-7^2 + 9(7)= -49 + 63 = 14

3 0

3 years ago

You are working for the meteorological department in Hawaii. Your job is to track the amount of rainfall received on 50 sites ac

ki77a [65]

It is a observation study, because you are observing how much rainfall is in Hawaii at 50 sites.