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3 years ago

A sprinkler that sprays water in a circular area can spray up to a radius of 22 ft.

Mathematics

2 answers:

kifflom [539]3 years ago

8 0

<span>1520.5</span>^2 feet is the answer

Tomtit [17]3 years ago

5 0

Answer:

Step-by-step explanation:

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Which statement is true? (25 points)

olasank [31]

Answer:

C. The value of 534 − 356 is half the value of 2 x (534 − 356). :) hope this helps.

Step-by-step explanation:

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4 years ago

How do you do this question

lorasvet [3.4K]

You have to do exactly what it says calculate the length of that part of the shape.

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3 years ago

Devon wants to write an equation for a line that passes through 2 of the data points he has collected. The points are (8, 5) and

ser-zykov [4K]

For this case we have the following equation:
$7x - 10y = 3
$
From here, we must substitute ordered pairs of the form:
(x, y)
If the ordered pair satisfies the equation, then it belongs to the line.
We have then:

For (8, 5):
We substitute the following values:
$x = 8

y = 5

7 (8) - 10 (5) = 3

56 - 50 = 3

6 = 3$
We observe that the equation is not satisfied and therefore, this point does not belong to the line.
Since one of the points does not belong to the line, then the equation is not a good model.

Answer:
It is not a good model. One of the points does not belong to the line.

4 0

3 years ago

Read 3 more answers

Steve put an empty cup undern eath a leaking faucet After l and a half hours,Steve had collected 1 out of 8 cup of water ,

Snowcat [4.5K]

I think the answer is 1/16 ...not for sure tho

6 0

4 years ago

Penelope invested 60% of her retirement account in stocks and 40% in gold. Penelope believes that the return to stocks over the

hjlf

Answer:

1) mean = 21, standard deviation σ = 21.9317

2) the probability that Penelope's portfolio will earn at least 12% in the next 12 months is 0.6591

Step-by-step explanation:

Given the data in the question;

1. According to Penelope's beliefs, what are the mean rate of return and the standard deviation of return of her portfolio?

Mean μ = Return = ( 60% × 15) + ( 40% × 30 ) = 9 + 12 = 21

mean = 21

standard deviation σ = √( (0.6² × 25²) + ( 0.4² × 40² ) )

standard deviation σ = √( (0.36 × 625) + ( 0.16 × 1600 ) )

standard deviation σ = √( 225 + 256 )

standard deviation σ = √481

standard deviation σ = 21.9317

2) What is the probability that Penelope's portfolio will earn at least 12% in the next 12 months

so we are to find P( X > 12 )

converting into standard normal variable;

⇒ P( Z > X-μ / σ )

= P( Z > ( 12-21 / 21.9317 ) )

= P( Z > ( -9 / 21.9317 ) )

= P( Z > -0.41 )

FROM z-score table; P( Z > -0.41 ) is 0.3409

P( X > 12 ) = 1 - 0.3409

P( X > 12 ) = 0.6591

Therefore, the probability that Penelope's portfolio will earn at least 12% in the next 12 months is 0.6591

3 0

3 years ago