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ryzh [129]
3 years ago
12

Solve the following system of equations x=-y-9 5x-6y=-1

Mathematics
1 answer:
juin [17]3 years ago
5 0

Answer:

x=y-9....1

5x-6y=-1.....2

putting the value of x in eqn 2

5y-45-6y=-1

-y=44

y=44

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Inside the container there is empty space not taken up by the volleyball. What is the volume of that empty space? Use 3.14 for π
tensa zangetsu [6.8K]
Volume of Sphere is V=(4/3)*PI*r^3
The radius of the volleyball is 13 inches
So V=(4/3) * 3.14 * 13^3 =  9198 cubic inches
 
Volume of a cylinder is V=pi * r^2 *h
Since they say the ball fits perfectly
The radius is 13 and the height is 26 ( the diameter of the ball)
So V=3.14 * 13^2 * 26 = 13,797 cubic inches
 
13797 – 9198 = 4,599 cubic inches of empty space

I really hope this helps.
6 0
3 years ago
Geometry - Will give 5 stars + Thanks!
Fynjy0 [20]

Answer:

<h2>x = 3 and y = 4</h2>

Step-by-step explanation:

We know:

The diagonals in a parallelogram divide by halves.

Therefore KG = UG and DG = CG.

We have

KG = 5y - 8, UG = 3y, DG = 4x - 7, CG = x + 2

Substitute:

5y - 8 = 3y          <em>add 8 to both sides</em>

5y = 3y + 8      <em>subtract 3y from both sides</em>

2y = 8      <em>divide both sides by 2</em>

y = 4

---------------

4x - 7 = x + 2           <em>add 7 to both sides</em>

4x = x + 9            <em>subtract x from both sides</em>

3x = 9     <em>divide both sides by 3</em>

x = 3

5 0
4 years ago
kelly ate 5/8of a pizza,lilly ate 2/6 of a pizza,ray ate 8/11 of a pizza,and marlin ate 2/5 of a pizza.which girl ate the least
kap26 [50]
5/8, 2/6, 8/11, 2/5
Convert them into decimals.

5/8 ⇒ 0.625
2/6 ⇒ 0.333
8/11 ⇒ 0.727
2/5 ⇒ 0.4

The lowest amount is 0.333, or 2/6.

Lilly ate 2/6 of a pizza.
Lilly ate the least amount of pizza.
7 0
3 years ago
determine the price and quantity for which revenue is maximised given a firm demand function of a particular commodity to be (12
DerKrebs [107]
Demand
D(q)=(12-q)^(1/2)
Revenue,
R(q)=q*D(q)=q*sqrt(12-q)
At maximum revenue, 
R'(q)=0
where
R'(q)=sqrt(12-q)-q/[2(sqrt(12-q))]=0
Solve for q=8.
Hence, quantity=8, price=sqrt(12-q)=sqrt(12-8)=sqrt(4)=2


7 0
3 years ago
The extract of a plant native to Taiwan has been tested as a possible treatment for Leukemia. One of the chemical compounds prod
Klio2033 [76]

Answer:

45.94%

Step-by-step explanation:

Probability-Above 45.94%

Z =0.1  

x= 61

µ 60

σ 9.8

6 0
3 years ago
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