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alexandr1967 [171]

2 years ago

12

The formula to find tha area of a cylinder

2 answers:

Sergio [31]2 years ago

4 0

A=2πrh+2πr2 Area of cylinder
.......

finlep [7]2 years ago

4 0

Hi

The formula is

A = 2πr² + h(2πr)

I hope this help!

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I want to know the distance

DiKsa [7]

here's the answer to your question

3 0

3 years ago

How to solve long division by using long division 711.9 divided by 8.4

harkovskaia [24]

Multiply both 711.9 and 8.4 by 10 which will remove the decimal point.
and make the calculation much more easier
the required answer would be 84.75

5 0

3 years ago

X^2=4x-15 solve with Quadratic formula

bulgar [2K]

Answer:

$x=2+i\sqrt{11}$

$x=2-i\sqrt{11}$

Step-by-step explanation:

we have

$x^{2} =4x-15$ -------> $x^{2}-4x+15=0$

we know that

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$x^{2}-4x+15=0$

so

$a=1\\b=-4\\c=15$

substitute in the formula

$x=\frac{-(-4)(+/-)\sqrt{-4^{2}-4(1)(15)}} {2(1)}$

$x=\frac{4(+/-)\sqrt{16-60}} {2}$

Remember that

$i=\sqrt{-1}$

$x=\frac{4(+/-)\sqrt{-44}} {2}$

$x=\frac{4(+/-)2i\sqrt{11}} {2}$

$x=\frac{4(+)2i\sqrt{11}}{2}=2+i\sqrt{11}$

$x=\frac{4(-)2i\sqrt{11}}{2}=2-i\sqrt{11}$

7 0

3 years ago

<img src="https://tex.z-dn.net/?f=%5Csf%5Clarge%5Cgreen%7B%5Cunderbrace%7B%5Cred%7BQuestion%2A%7D%7D%7D%3A" id="TexFormula1" tit

matrenka [14]

Answer:

$y > \boxed{\cfrac{42}{5} }$

Step-by-step explanation:

Given inequality:

$\cfrac{y}{3} > 7 - \cfrac{y}{2}$

To solve for <em>y.</em>

Solution:

Rewrite the inequality as,

$\displaystyle \frac{1y}{3} > \frac{ - 1}{2} y + 7$

Adding 1/2y to both sides,

$\cfrac{1}{3} y + \cfrac{ 1 }{2} y > \cfrac{ - 1}{2}y + 7 + \cfrac{1}{2} y$

$\cfrac{5}{6} y > 7$

Multiplying both sides by 6/5:

$\cfrac{6}{5} \times \cfrac{5}{6} y > \cfrac{6}{5} \times 7$

$y > \boxed{\cfrac{42}{5} }$

Value of y is 42/5.

7 0

2 years ago

What is the square root of 190,290,390,545

andre [41]

Answer:

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers