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3 years ago

Can someone help please?

Mathematics

2 answers:

ArbitrLikvidat [17]3 years ago

6 0

Y-int: is positive 4.
Slope: is 2/1x which is also 2x.
The equation: is 2x+4.
If it’s wrong I apologize, I haven’t done this in a while I’m sure it’s correct tho.
I hope this helped.

olga nikolaevna [1]3 years ago

5 0

Step-by-step explanation:

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4 years ago

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A cylinder has diameter of 4ft and a height of 9ft. Explain whether halving the diameter has the same effect on the surface area

elena55 [62]

Answer:

See Below

Step-by-step explanation:

The surface area of cylinder is given by the formula:

$SA=2\pi r^2 + 2\pi r h$

Where

r is radius ( diameter is 4, so radius is 4/2 = 2)

h is height ( h = 9)

Lets find original surface are:

$SA=2\pi r^2 + 2\pi r h\\SA=2\pi (2)^2 + 2\pi (2) (9)\\SA=8\pi +36\pi\\SA=44\pi$

<u>Halving diameter:</u>

diameter would be 4/2 = 2, so radius would be 2/2 = 1

So, SA would be:

$SA=2\pi r^2 + 2\pi r h\\SA=2\pi (1)^2 + 2\pi (1) (9)\\SA=2\pi +18\pi\\SA=20\pi$

<u>Halving height:</u>

Height is 9, halving would make it 9/2 = 4.5

Now, calculating new SA:

$SA=2\pi r^2 + 2\pi r h\\SA=2\pi (2)^2 + 2\pi (2) (4.5)\\SA=8\pi + 18\pi\\SA= 26\pi$

Original SA is $44\pi$ ,

Halving diameter makes it $20\pi$

Halving height makes it $26\pi$

So, halving diameter does not have same effect as halving height.

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3 years ago

What is the answer if you factor completely

Sergeeva-Olga [200]

Answer:

Your correct and final answer is (9+x^6) (3+x^3) (3-x^3)

Hope this helps!!!

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3 years ago

Please help i am confused.

goblinko [34]

The correct answer is the last one

This is because C and F do not join on the shape

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2 years ago

2/3 of the product of 3/8 and 16

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Hi there, we are going to multiply 3/8 by 16. 3/8*16=6 and 2/3*6=4

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4 years ago