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Burka [1]
3 years ago
12

Did I get this right? If I did t could someone explain it to me

Mathematics
2 answers:
gregori [183]3 years ago
8 0
You are correct, by using vertical line test, all these are functions except graph b because there is more than one y output to one x input.
Kisachek [45]3 years ago
3 0

Answer:

Yes, you are correct.

Step-by-step explanation:

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A cheetah can run 70 miles per hour.what is this speed in feet
Fittoniya [83]
369,600 feet per hour
3 0
3 years ago
A designer is making a rectangular prism box with maximum volume, with the sum of its length, width, and height 8 in. The length
Sever21 [200]

Answer:

width = 1.8 in

length =   3.6 in

height =8-3w =8-3(1.8)= 2.6 in

Step-by-step explanation:

A designer is making a rectangular prism box with maximum volume, with the sum of its length, width, and height 8 in

Let l , w and h are the length , width and height

l +w+h=8\\l=2w

Plug it in the first equation

2w+w+h=8\\3w+h=8\\h=8-3w

volume the box is length times width times height

volume = (2w)(w)(8-3w)\\16w^2-6w^3

To get maximum volume we take derivatived

v'=32w-18w^2

set the derivative =0 and solve for w

0=32w-18w^2\\0=-2w(9w-16)\\w=0 , w= \frac{16}{9}

width = 1.8 in

length = 2w= 3.6 in

height =8-3w =8-3(1.8)= 2.6 in

6 0
3 years ago
D={x E Z;-4 < x < 4}
tino4ka555 [31]

Answer:

D={-3,-2,-1,0,1,2,3}

7 0
1 year ago
Write this number in standard form.431537
jeka94
The answer is 431537
8 0
3 years ago
What is the volume of the cylinder?
Elenna [48]

Answer:

Option D. 882\pi\ units^{3}

Step-by-step explanation:

we know that

The volume of the cylinder is equal to

V=\pi r^{2}h

In this problem we have

r=7\ units

h=18\ units

substitute

V=\pi (7^{2})(18)=882\pi\ units^{3} -----> exact value of the volume

5 0
3 years ago
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