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3 years ago

Bab needs help please!

Mathematics

2 answers:

ASHA 777 [7]3 years ago

8 0

Answer:

282.6 in³

Step-by-step explanation:

Volume = area circle * height

Area circle = πr²

Area circle = 3.14 * 9 = 28.26

28.26 * 10 = 282.6 in³

If my answer is incorrect, pls correct me!

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-Chetan K

lara [203]3 years ago

8 0

282.6 in^3
Step by step explanation:
Because I said so

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(x + 21)°<br> 137°<br> find the value of x.

pantera1 [17]

Answer:

x=116

Step-by-step explanation:

subtract 21 on both sides

5 0

4 years ago

Y=-x^2+2x+10<br> y=x+2<br><br> Substitution <br> Please show your work<br> Need ASAP

erik [133]

Answer:

The solutions of the system of equations are the points

$(\frac{1-\sqrt{33}} {2},\frac{5-\sqrt{33}} {2})$

$(\frac{1+\sqrt{33}} {2},\frac{5+\sqrt{33}} {2})$

Step-by-step explanation:

we have

$y=-x^{2} +2x+10$ ----> equation A

$y=x+2$ ----> equation B

Solve the system by substitution

substitute equation B in equation A

$x+2=-x^{2} +2x+10$

solve for x

$-x^{2} +2x+10-x-2=0$

$-x^{2} +x+8=0$

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$-x^{2} +x+8=0$

$a=-1\\b=1\\c=8$

substitute in the formula

$x=\frac{-1\pm\sqrt{1^{2}-4(-1)(8)}} {2(-1)}$

$x=\frac{-1\pm\sqrt{33}} {-2}$

$x=\frac{-1+\sqrt{33}} {-2}$ -----> $x=\frac{1-\sqrt{33}} {2}$

$x=\frac{-1-\sqrt{33}} {-2}$ -----> $x=\frac{1+\sqrt{33}} {2}$

<em>Find the values of y</em>

For $x=\frac{1-\sqrt{33}} {2}$

$y=x+2$

$y=\frac{1-\sqrt{33}} {2}+2$ ----> $y=\frac{5-\sqrt{33}} {2}$

For $x=\frac{1+\sqrt{33}} {2}$

$y=x+2$

$y=\frac{1+\sqrt{33}} {2}+2$ ----> $y=\frac{5+\sqrt{33}} {2}$

therefore

The solutions of the system of equations are the points

$(\frac{1-\sqrt{33}} {2},\frac{5-\sqrt{33}} {2})$

$(\frac{1+\sqrt{33}} {2},\frac{5+\sqrt{33}} {2})$

5 0

3 years ago

The volume of a right cone is 17287 units³. If its circumference measures 247 units,

Nikolay [14]

The height of the right cone is 10.68 unit

<h3>What is Volume ?</h3>

Volume is defined as the space occupied by a three dimensional object.

Volume of a right cone is given by

V = π r²h/3

C = 2 π r

r = 247/2 π

3 * 17287 = π r²h

3 * 17287 = π *(247/2 π )²h

h = 51861 *π *4/61009

h = 10.68 unit

Therefore the height of the right cone is 10.68 unit.

To know more about Volume

brainly.com/question/1578538

#SPJ1

7 0

2 years ago

On a school bus, the teacher sitting in front of me asked if I passed gas -- why did she ask me this and why did she WHISPER it

Musya8 [376]

Answer:

Step-by-step explanation:she asked you that because she smelled something and she whispered it so she wouldnt embarrass you

7 0

3 years ago

Read 2 more answers

How would you do this I am confused???

Margaret [11]

Angle 2 is 180-127=53 degrees

angle G is 90

triangle has a total of 180 degrees, so angle 1 is 180-90-53=37 degrees

4 0

4 years ago

Read 2 more answers