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algol [13]
2 years ago
7

A paper cup shaped like a cone has a diameter of 6 centimeters and a slant height of 7.5 centimeters. About how much paper is ne

eded to make the cup
Mathematics
1 answer:
liq [111]2 years ago
4 0

Answer:

22.5 cm^2

Step-by-step explanation:

Amount of paper is going to be measured in area, so we want the surface area of the cone.  Since it is a cub it doesn't have a base, so we don't need to count it.  

Area of the cone without the base, or what is called the lateral area is pi*r*s where r is the radius and s is the slant height.  and of course radius is d/2 where d is the diameter.  so let's plug it in.  We know diameter is 6 and slant height is 7.5

SA = pi * r * s

SA = pi * d/2 * s

SA = pi * 6/2 * 7.5

SA = 22.5 cm^2

So you will need 22.5 square centimeters of paper.

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Answer:

The answer is 8 bicycles : 15 wheels

3 0
3 years ago
8. Teddy is considering buying flood insurance. The cost of flood insurance is $400 per year. Teddy predicts
spayn [35]

Answer:

The expected losses are $200 per year

Step-by-step explanation:

Expected payoff from flood insurance is:

income*probability of flood

$ 1000 * 0.20 = $ 200

But his insurance costs $400 per year, then he will loss: $ 400 - $ 200 = $200 per year.

7 0
3 years ago
Read 2 more answers
What does 5x + 10y equal
leonid [27]

Answer:

Step-by-step explanation:

 Slope = 1.000/2.000 = 0.500

 x-intercept = 0/1 = 0.00000

 y-intercept = 0/-2 = -0.00000

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    5*x-(10*y)=0  

Step by step solution :

Step  1  :

Pulling out like terms :

1.1     Pull out like factors :

  5x - 10y  =   5 • (x - 2y)  

Equation at the end of step  1  :

Step  2  :

Equations which are never true :

2.1      Solve :    5   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Equation of a Straight Line

2.2     Solve   x-2y  = 0

Tiger recognizes that we have here an equation of a straight line. Such an equation is usually written y=mx+b ("y=mx+c" in the UK).

"y=mx+b" is the formula of a straight line drawn on Cartesian coordinate system in which "y" is the vertical axis and "x" the horizontal axis.

In this formula :

y tells us how far up the line goes

x tells us how far along

m is the Slope or Gradient i.e. how steep the line is

b is the Y-intercept i.e. where the line crosses the Y axis

The X and Y intercepts and the Slope are called the line properties. We shall now graph the line  x-2y  = 0 and calculate its properties

Graph of a Straight Line :

 

 

Calculate the Y-Intercept :

Notice that when x = 0 the value of y is 0/-2 so this line "cuts" the y axis at y=-0.00000

 y-intercept = 0/-2  = -0.00000  

Calculate the X-Intercept :

When y = 0 the value of x is 0/1 Our line therefore "cuts" the x axis at x= 0.00000

 x-intercept = 0/1  =  0.00000  

Calculate the Slope :

Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is 0.000 and for x=2.000, the value of y is 1.000. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of 1.000 - 0.000 = 1.000 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)

   Slope     =  1.000/2.000 =  0.500  

Geometric figure: Straight Line

 Slope = 1.000/2.000 = 0.500

 x-intercept = 0/1 = 0.00000

 y-intercept = 0/-2 = -0.00000

6 0
4 years ago
11/3 can be thought of as a whole number and a fraction.
Nostrana [21]
11/3 = 3 2/3 as a mixed fraction or proprr fraction
6 0
3 years ago
Why is the rise the value for the numerator and the run the value for the denominator?
julsineya [31]
Because change in y for the rise is if it goes up or down and change in x for the run to see if it goes left or right
3 0
3 years ago
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