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3 years ago

These cylinders are similar. Find the surface

Mathematics

1 answer:

diamong [38]3 years ago

8 0

Answer:

Surface Area = 6.28 x 5.223 x 3 + 6.28 x 10.446 = 164 cm^2Step-by-step explanation:

A=2πrh+2πr2

When we divide 245 by 1.5 we find 164cm^2

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Pythagorean theorem help me plzzzz<br> Z

erastovalidia [21]

X^2 = 12^2 + 10^2
x^2 = 144 + 100
x^2 = 244
x = sqrt(244)
x = 15.62

6 0

3 years ago

Can you PLEASE help me!! And show me how you got the answer

Artist 52 [7]

In a triangle the midline joining the midpoints of two sides is parallel to the third side and half as long ⇒

2(3x + 2) = 2x + 20
6x + 4 = 2x + 20
6x - 2x = 20 - 4
4x = 16
x = 16/4
x = 4

midsegment = 3x + 2 = 3*4 + 2 = 12 + 2 = 14

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3 years ago

The sum of two numbers is 14. When one number is added to twice the other number, the result is 25. Find the numbers

ELEN [110]

Let x and y be the two numbers. We have:

$\begin{cases}x+y=14\\x+2y=25\end{cases}$

Subtract the first equation from the second to get

$y=11$

And deduce

$x+11=14 \iff x=3$

The two numbers are 3 and 11.

5 0

3 years ago

Two objects are moving along separate linear paths where each path is described by position, d, and time, t. The variable d is m

Leni [432]

Answer:

it would start at 2.2 on the y axis and go up 2.5 and over 1

Step-by-step explanation:

4 0

3 years ago

PLZ HURRY ITS TIMEDDD

Dafna11 [192]

Answer:

Option C. 4(20-16y): Each side measures 20-16y units.

Step-by-step explanation:

we know that

The perimeter of a square is equal to

$P=4b$

where

b is the length side of the square

we have

$P=(80-64y)\ units$

substitute the given value in the formula

$(80-64y)=4b$

solve for b

Divide by 4 both sides

$(20-16y)=b$

Rewrite the expression

$b=(20-16y)\ units$

<em>Alternative Method</em>

we have

$P=(80-64y)\ units$

Factor 4

$P=4(20-16y)\ units$

Each side measures (20-16y) units.

7 0

3 years ago