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Tpy6a [65]
3 years ago
14

The probability of a golden retriever catching a tennis ball in mid-air is 78%. Find the probability that a golden retriever cat

ches three tennis balls in mid-air.
Mathematics
2 answers:
Salsk061 [2.6K]3 years ago
3 0

To find the probability, we do 78% to the third power, which is 0.474552 or when rounded 0.475

s344n2d4d5 [400]3 years ago
3 0

Answer:

53.1441%

Step-by-step explanation:

Assuming each event is independent of one another, the probability of catching the tennis ball three times in a row is

(0.81)^3 = (0.81)*(0.81)*(0.81) = 0.531441

This converts to 53.1441%

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A random sample of dogs at different animal shelters in a city shows that 10 of the 55 dogs are puppies. The city's animal shelt
inysia [295]

Answer: The number of dogs in all of the city's animal shelters is puppies = 270

Step-by-step explanation:

Given: A random sample of dogs at different animal shelters in a city shows that 10 of the 55 dogs are puppies.

The city's animal shelters collectively house 1,485 dogs each year.

The number of dogs in all of the city's animal shelters is puppies = 1485\times\dfrac{10}{55}=270

Hence, The number of dogs in all of the city's animal shelters is puppies = 270

7 0
3 years ago
Betty's height is 2/3 of Jinlan's height. Find the ratio of Betty's height to Jinlan's height.
nasty-shy [4]
Betty's height versus Jinlan's height is 2:3
3 0
3 years ago
Please find which quadratic equation matches the graph with work attached
lesya [120]

Answer:

C

Step-by-step explanation:

Firstly, we know that the function must be negative due to its shape. This means that the answer cannot be B

Next we can use the equation x=\frac{-b}{2a} that is used in order to find the vertex of the parabola.

A)

f(x)=-x^2+6x+7\\a=-1,b=6,c=7\\\\x=\frac{-6}{-2} \\x=3

As the vertex is at x=3 on the graph, this one could be a contender.

C)

f(x)=-x^2+6x-7\\a=-1,b=6, c=-7\\\\x=\frac{-6}{-2} \\\\x=3

This also could be the equation

D)

f(x)=-x^2-6x-7\\\\a=-1, b=-6, c=-7\\\\x=\frac{6}{-2} \\\\x=-3

This rules option D out.

For this last step, we can look at where the zeroes would be for each equation. (These values are irrational, so we cannot look at specific number)

A)

f(x)=-(x^2-6x-7)

As this equation has a negative value for c, this means that one zero must be positive and the other must be negative.

This means that option A can be ruled out

C)

f(x)=-(x^2-6x+7)

As this equation has a positive value for c, this means that both of the zeroes must be positive. This means that it is the only one that fits all of the criteria.

7 0
3 years ago
What is the value of 2 in 5,014,245?
Arlecino [84]
Your reasoning and your answer were both correct. Discuss with the teacher. ("Discuss". DON'T fight.)
6 0
3 years ago
A city has a population of 250,000 people. Suppose that each year the population grows by 7.5%. What will the population be afte
Diano4ka-milaya [45]
So, if it grows by 6.75%, each year the population is 106.75% of the year before.

After 1 year, 370,000(1.0675). After two years, 370,000(1.0675)(1.0675).

370,000(1.0675)12 = your answer
4 0
2 years ago
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