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4 years ago

Comparing unit rates

Mathematics

1 answer:

Yuki888 [10]4 years ago

4 0

Answer:

Step-by-step explanation:

The probability that Liu Yang makes a three-point shot in basketball is 10\%10%10, percent. For practice, Liu Yang will regularly shoot a series of these shots until she makes one. She's curious how many shots it will typically take her to get her first successful shot.

She simulated 303030 trials of three-point shots where each shot had a 0.10.10, point, 1 probability of being made, and in each trial, she counted how many shots it took to get the first successful shot. Here are her results:

Use her results to estimate the probability that it takes 111111 or more shots to get her first successful shot.

Give your answer as either a fraction or a decimal.

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PLEASE HELP ITS URGENT

malfutka [58]

Answer:

So the annual percent of decay is: 7.77%

Step-by-step explanation:

If the value of a car was $18000 in 2006, and in 2016 it was worth $4000 it means, it lose 77.77% of its value in 10 years.

To calculate the percentage of decay we use the rule of three:

If the price of the car in 2006 ($18000) represents 100%, then, how much does $4000 represents?

4000*100/18000 = %22.22

Now, we know that $4000 represents 22.22% the original value, so it lose 100% - 22.22% = 77.77% of its value.

So the annual percent of decay is: 77.77% / 10 = 7.77%

7 0

4 years ago

A 4-ft vertical post casts a 20-in shadow at the same time a nearby cell phone tower casts a 120-ft shadow. How tall is the c

Sedaia [141]

change 20 in to ft

20/12 = 1 2/3 ft

4 ft x ft

------- = ---------------

5 /3 ft shadow 120 ft

using cross products

4 * 120 = 5/3 x

480 = 5/3 x

multiply each side by 3/5

480 * 3/5 = x

288 ft

7 0

4 years ago

Helpppp Plsssss Asap!! Show your work!! Thanks!!

Vera_Pavlovna [14]

Answer:

the answer is C

used graphing calculator

Hope This Helped! Have A Nice Day!!

8 0

3 years ago

Read 2 more answers

Marcus wants to decorate his box that is i the shape of a cube with a color. he decides to cover the entire box with red color p

olga2289 [7]

*see attached picture for the diagram of the box

Answer:

130cm²

Step-by-step explanation

The amount of red appear needed by Marcus to cover his box = Surface Area of the cube - Area of the circle.

Surface area of cube = 6s² (where s is the side length of the cube. s² therefore is S.A of 1 face of the cube)

Given that s = 5cm,

S.A of cube = 6s² = 6*5² = 150cm²

Area of circle = πr²;

Given that π = 3.14, and r = ½ of diameter of circle (i.e. ½ of side length of cube)

Area of circle = 3.14*(½*5)² = 3.14*(2.5)² = 3.14*6.25 =19.625

Amount of red paper needed = S.A of the cube - Area of the circle = 150cm² - 19.625cm² = 130.375cm² = 130cm²

3 0

3 years ago

Help please i dont know this thank you<33

jok3333 [9.3K]

Answer:

Step-by-step explanation:

Put the value where the variable is and do the arithmetic. It can save some steps to simplify the expression first.

35 -c³ +8 = 43 -c³

c = 1

43 - 1³ = 43 -1 = 42

c = 2

43 - 2³ = 43 -8 = 35

c = 3

43 -3³ = 43 -27 = 16

The values that go in the blanks are 42, 35, 16.

_____

Additional comment

It does not take long to learn how to use a spreadsheet for evaluating the same formula with a number of different values of the variable(s). Graphing calculators can do this, too. It is always appropriate to use the right tool for the job.

Familiarity with multiplication and addition facts is a very good place to start. It is also useful to memorize the squares and cubes of small integers. The latter are needed here.

3 0

3 years ago