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2 years ago

Surface area,pls help

Mathematics

1 answer:

erastovalidia [21]2 years ago

5 0

192
Solution
(2ft)x(12ft)x(8ft)
Answer
192
Sana po makatulong

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Please help In which table does y vary directly with x?

grigory [225]

Answer:

Table D

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

Verify each case

Table A

For x=1, y=3

Find the value of k

$k=y/x$ -----> $k=3/1=3$

For x=2, y=9

Find the value of k

$k=y/x$ -----> $k=9/2=4.5$

the values of k are different

therefore

The table A not represent a direct variation

Table B

For x=1, y=-5

Find the value of k

$k=y/x$ -----> $k=-5/1=-5$

For x=2, y=5

Find the value of k

$k=y/x$ -----> $k=5/2=2.5$

the values of k are different

therefore

The table B not represent a direct variation

Table C

For x=1, y=-18

Find the value of k

$k=y/x$ -----> $k=-18/1=-18$

For x=2, y=-9

Find the value of k

$k=y/x$ -----> $k=-9/2=-4.5$

the values of k are different

therefore

The table A not represent a direct variation

Table D

For x=1, y=4

Find the value of k

$k=y/x$ -----> $k=4/1=4$

For x=2, y=8

Find the value of k

$k=y/x$ -----> $k=8/2=4$

For x=3, y=12

Find the value of k

$k=y/x$ -----> $k=12/3=4$

All the values of k are equal

therefore

The table D represent a direct variation or proportional relationship

The linear equation is $y=4x$

6 0

3 years ago

Read 2 more answers

Any ideas anybody? Help needed.

kvv77 [185]

Here is your answer in the picture

5 0

3 years ago

If Circle a has a diameter of 1 foot. Circle B has a circumference of 1 m. Which circle is bigger

horrorfan [7]

Answer:

First option

Step-by-step explanation:

6 0

3 years ago

The length of the escalator is 36 ft and the

beks73 [17]

Answer:

sin θ = 9 / 36 = 1/4

θ = 14.48 deg (ans C)

8 0

2 years ago

2. In the figure given alongside, find the values of x and y.

dimulka [17.4K]

Answer:

y=50°

x=232°

Step-by-step explanation:

cuz y+130=180

y=50

and

y+68+x=360°

50+68+x=360°

so x =232

5 0

2 years ago

Surface area,pls help ​

Surface area,pls help