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77julia77 [94]
3 years ago
6

POSSIBLE POINTS 50

Mathematics
1 answer:
m_a_m_a [10]3 years ago
8 0

Answer:

2500

Step-by-step explanation:

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A landscaping company is laying a triangular flower bed. The height of the trangle is 15ft. What lengths of the base will make t
mash [69]

Answer:

28 ft

Step-by-step explanation:

The height of the triangle = 15 ft

The least required area A = 210 ft^2

We know that the area of a triangle = 1/2bh

Where

b is the base

h is the height

Substituting, we have

210 = 1/2 x b x 15

210 = 15/2 x b

420/15 = b

b = 28 ft

5 0
3 years ago
PLEASE HELP 2x + 6 for x = 12
elixir [45]

Answer:

30

Step-by-step explanation:

1.Substitute the x for 12.

2.Multiply the 2 by 12.

3.Then add 6 to your answer.

8 0
3 years ago
PLEASE HELP ME!! I AM TAKING A TEST AND I NEED TO KNOW THE ANSWER!!!! GIVING BRAINLIEST
Sloan [31]

Answer:

Yes

Step-by-step explanation:

Both angles can be 90 degrees

4 0
3 years ago
Read 2 more answers
Ayo runs a fairground game.In each turn, a player rolls a fair dice numbered 1 - 6 and spins a fair spinner numbered 1 - 12.It c
aksik [14]

Using the definition of expected value, it is found that Ayo can be expected to make a profit of £55.8.

The <em>expected value</em> is given by the <u>sum of each outcome multiplied by it's respective probability.</u>

In this problem:

  • The player wins $6, that is, Ayo loses £6, if he rolls a 6 and spins a 1, hence the probability is \frac{1}{6} \times \frac{1}{12} = \frac{1}{72}.
  • The player wins $3, that is, Ayo loses £3, if he rolls a 3 on at least one of the spinner or the dice, hence, considering three cases(both and either the spinner of the dice), the probability is \frac{1}{6} \times \frac{1}{12} + \frac{1}{6} \times \frac{11}{12} + \frac{5}{6} \times \frac{1}{12} = \frac{1 + 11 + 5}{72} = \frac{17}{72}
  • In the other cases, Ayo wins £1.40, with 1 - \frac{18}{72} = \frac{54}{72} probability.

Hence, his expected profit for a single game is:

E(X) = -6\frac{1}{72} - 3\frac{17}{72} + 1.4\frac{54}{72} = \frac{-6 - 3(17) + 54(1.4)}{72} = 0.2583

For 216 games, the expected value is:

E = 216(0.2583) = 55.8

Ayo can be expected to make a profit of £55.8.

To learn more about expected value, you can take a look at brainly.com/question/24855677

6 0
2 years ago
In the past year Maya watched 34 movies that she thought were very good. She watched 40 movies over the whole year. Of the movie
kvasek [131]

Answer:

90 percent

Step-by-step explanation:

the fraction is 90/100 so the percentage is 90%

6 0
3 years ago
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