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3 years ago

In the swimming pool design explain how to find the area of the pool surface

Mathematics

1 answer:

disa [49]3 years ago

7 0

Answer:

Find the area of the rectangle. Then, find the area of the circle. The diameter is given, so take half that to get the radius. Multiply the area of the circle by half. Subtract the area of the half circle from the area of the rectangle.

Step-by-step explanation:

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What type of graph is this?

professor190 [17]

Answer:

bar graph

Step-by-step explanation:

you can see the bars

and we learned about them in 5th to 8th grade

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3 years ago

Pls help me with my beestar

Minchanka [31]

Mmmmm Maybe you should try doing something doing something doing something during

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3 years ago

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Defective Merchandise Suppose that 8% of a certain batch of calculators have a defective case, and that 11 % have defective batt

Snowcat [4.5K]

Answer:

0.84 = 84% probability that the calculator has a good case and good batteries.

Step-by-step explanation:

We have these following percentages:

8% of a certain batch of calculators have a defective case.

11 % have defective batteries.

3% have both a defective case and defective batteries.

Using Venn Diagrams:

Event A: Defective Case

Event B: Defecitve Battery

So the probabilities are: $P(A) = 0.08, P(B) = 0.11, P(A \cap B) = 0.03$

Probability of at least one problem:

$P(A \cup B) = P(A) + P(B) - P(A \cap B) = 0.08 + 0.11 - 0.03 = 0.16$

Find the probability that the calculator has a good case and good batteries.

No problems, so

$p = 1 - P(A \cup B) = 1 - 0.16 = 0.84$

0.84 = 84% probability that the calculator has a good case and good batteries.

4 0

3 years ago

Use the drop-down menus to choose steps in order to correctly solve 6n+9=−3n−21−6 for n.

crimeas [40]

6n + 9 = -3n + -21 + -6

Reorder the terms:

9 + 6n = -21 + -6 + -3n

Combine like terms: -21 + -6 = -27

9 + 6n = -27 + -3n

Solving

9 + 6n = -27 + -3

Add '3n' to each side of the equation.

9 + 6n + 3n = -27 + -3n + 3n

Combine like terms: 6n + 3n = 9n

9 + 9n = -27 + -3n + 3n

Combine like terms: -3n + 3n = 0

9 + 9n = -27 + 0

9 + 9n = -27

Add '-9' to each side of the equation.

9 + -9 + 9n = -27 + -9

Combine like terms: 9 + -9 = 0

0 + 9n = -27 + -9

9n = -27 + -9

Combine like terms: -27 + -9 = -36

9n = -36

Divide each side by '9'.

n = -4

Simplifying

n = -4

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4 years ago

Simplify (12a^2b^6)^2

marishachu [46]

You go through and square each term in the parentheses
(12a^2b^6)^2 = (12)^2(a^2)^2(b^6)^2 =
144a^4b^12

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3 years ago

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