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1 year ago

F r e e pointsc o m e and get somesay sheeeeeeeeeeeeeeesh

Mathematics

1 answer:

tiny-mole [99]1 year ago

5 0

Sheeeeeeeeeeeeeeesh
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enrico is laying 1-ft tiles ok a square bathroom floor. if he needs 81 tiles to cover the floor, how many tiles run along each w

atroni [7]

Answer:

Step-by-step explanation:

you would need to find the square root of the total amount of tiles. luckily 81 is a square number meaning the answer is each side is 9 tiles long.

8 0

3 years ago

Can I please get help

dolphi86 [110]

I can’t see the picture☹️☹️☹️

7 0

3 years ago

Read 2 more answers

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:

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

Halving diameter:

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

So, SA would be:

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

Halving height:

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.

5 0

3 years ago

Find the surface area of the solid. 28.

Andrews [41]

Answer: 166 units²

Step-by-Step Explanation:

7 × 5 × 2 + 7 × 4 × 2 + 5 × 4 × 2 = 166 units²

7 0

3 years ago

Someone pls help me ! i rlly need help

DerKrebs [107]

Answer:

Option D is the correct answer.

Step-by-step explanation:

Coefficients od dividend = (4, - 17, - 15)

Dividend $=4x^2 - 17x - 15$

Divisor x = 5 =>x-5= 0

Coefficients of Quotient = (4, 3)

Quotient $=4x + 3$

Remainder = 0

Since,

$Dividend = Divisor \times quotient + Remainder\\\therefore 4x^2 - 17x - 15 = (x - 5)\times (4x + 3) +0 \\\therefore 4x^2 - 17x - 15 = (x - 5)\times (4x + 3) \\\therefore( 4x^2 - 17x - 15) \div (x - 5) = (4x + 3)$

8 0

3 years ago