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3 years ago

Does anyone know the answer for his ?

Mathematics

2 answers:

n200080 [17]3 years ago

3 0

The answer is B :) i answered the other one

Tom [10]3 years ago

3 0

The answer is B x=1+2i,1−2i

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What is the difference between the formula of the volume of the cylinder and the volume of a cone? What do the formulas have in

Margaret [11]

Answer:

The volume of the cylinder is 3 times the volume of the cone

Step-by-step explanation:

The formula for the volume of the cylinder is given by :

$V_{cy}=\pi r^2 h$ .....(1)

Where

r and h are the radius and the height of the cylinder

The formula for the volume of the cone is given by :

$V_{cone}=\dfrac{1}{3}\pi r^2h$ ...(2)

From equation (1) and (2),

$\dfrac{V_{cy}}{V_{cone}}=\dfrac{\pi r^2 h}{\dfrac{1}{3}\pi r^2 h}\\\\=3\\\\V_{cy}=3\times V_{cone}$

So, the volume of the cylinder is 3 times the volume of the cone.

6 0

3 years ago

I’m taking a test plz anyone help!

Mandarinka [93]

Ok so, basically reflect the shape horizontally across the y - intercept. In the exact same position but reflected across. I’m not sure because I can’t really see the points. Does it give you options? Or do you have to type it?

7 0

3 years ago

I need to get the answer to the problem 3(x-4)=12 because I am having trouble solving it

KiRa [710]

Answer:

x = 8

Step-by-step explanation:

3(x-4) = 12

3x - 12 = 12

+ 12 + 12

3x = 24

/ 3 / 3

x = 8

6 0

3 years ago

Read 2 more answers

X^2 - y^2 = 100

luda_lava [24]

Answer:

Step-by-step explanation:

Let's start by rewriting the second equation in terms of "x":

$x+y=5$

Subtract y from both sides:

$x=5-y$

Now, substitute "5-y" for "x" in the first equation:

$(5-y)^2-y^2=100$

Note that:

$(a-b)^2=a^2-2ab+b^2$

$25-10y+y^2-y^2=100$

Cancel out like terms:

$25-10y=100$

Subtract 25 from both sides:

$-10y=75$

Divide both sides by -10

$y=\frac{75}{-10}=\frac{15}{-2}=-\frac{15}{2}$

Now, substitute this value back into either of the equations to solve for x.

$x+y=5\\x-\frac{15}{2}=5\\$

Add 15/2 to both sides:

$x=5+\frac{15}{2}\\x=\frac{10}{2}+\frac{15}{2}\\x=\frac{25}{2}$

Now, find the difference:

$x-y=\frac{25}{2}-(-\frac{15}{2})=\frac{25}{2}+\frac{15}{2}=\frac{40}{2}=20$

8 0

2 years ago

Which expression is equivalent to 1/2 x + (-70) - 2 1/4 x - (-2) *

katovenus [111]

Answer:

-7/4x-68

Step-by-step explanation:

8 0

3 years ago