All categories

2 years ago

I need help asapppplpplll

Mathematics

1 answer:

My name is Ann [436]2 years ago

7 0

Answer:

sqrt( 3 V / pi h) =r

Step-by-step explanation:

V = 1/3 pi r^2 h

Multiply each side by 3

3 V = 1/3 pi r^2 h*3

3 V = pi r^2 h

Divide each side by pi h

3 V/ pi h = pi r^2 h/ pi h

3 V/ pi h = r^2

Take the square root of each side

sqrt( 3 V / pi h) = sqrt(r^2)

sqrt( 3 V / pi h) =r

You might be interested in

Find area and circumference of the circle (12.) pls NO links

xxTIMURxx [149]

Answer:

The area is 452.39

The Circumference is 75.36

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Use the Pythagorean theorem and the following diagram to help you find the area and perimeter of the following triangle. Please

Mekhanik [1.2K]

Answer:

Perimeter = 30

Area = 30

Step-by-step explanation:

$(x+8)^2 -x^2 = 12^2$

$x^2 +16x +64 - x^2 = 144$

$16x+64=144$

$16x = 80$

$x = 5$

Double check:

$\sqrt{12^2 + 5^2} = (5+8)\\\sqrt{12^2 + 5^2} = 13\\13 = 13$

Perimeter:

$12+5+13=30$

Area( $\frac{1}{2}bh$ ):

$\frac{1}{2}$ × 12 × 5 = 30

5 0

2 years ago

Read 2 more answers

Sont au

Sonbull [250]

Answer:

Step-by-step explanation:

3 0

2 years ago

Simplify 45/150 show work please:)

Jlenok [28]

Answer:

$\frac{3}{10}$

Step-by-step explanation:

$\frac{45}{150}$ 15 can go into both 45 and 150 so you divide both into that

45/15 is 3

150/15=10

$\frac{3}{10}$

7 0

2 years ago

Devon and his friends bought strawberry wafers for $3 per packet and chocolate wafers for $1 per packet at a carnival. They spen

boyakko [2]

PART A
s = the number of packets of strawberry wafers ;
c = the number of packets of chocolate wafers ;
3 × s + 1 × c = 30 ;
s + c = 22 ;

PART B

The method of solving "by substitution" works by solving one of the equations (you choose which one) for one of the variables (you choose which one), and then plugging this back into the other equation, "substituting" for the chosen variable and solving for the other. Then you back-solve for the first variable.

c = 30 - 3s;
s + ( 30 - 3s ) = 22;
30 - 2s = 22;
30 - 22 = 2s;
8 = 2s;
s = 4 ;
c = 30 - 12 ;
c = 18 ;

4 0

3 years ago