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3 years ago

Find the arc of the semicircle(diameter is 12)

Mathematics

1 answer:

Alchen [17]3 years ago

4 0

Answer:

$18.849$

Step-by-step explanation:

$\frac{180}{360} \times 2\pi \: \times 6 \\ \frac{1}{2} \times 2 \times \pi \times 6 \\ \pi \times 6 \\ = 18.849$

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Answer:The answer is =3,7

Step-by-step explanation:

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3 years ago

The equation below describes a parabola. If a is positive, which way does the

Rzqust [24]

B. Up

Because a positive ‘a’ value will make the parabola open upwards, and because the power is 2 (even) both sides will open up in a ‘U’ shape

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2 years ago

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0.05% of 40 help please

ohaa [14]

0.05% of 40 is 0.02

Divide your decimal by 100:
$0.05 \div 100 = 0.0005$

Multiply your decimal with 40:
$0.0005 \times 40 = 0.02$

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3 years ago

Pizzas come in 4 different sizes, each with or without a choice of 5 toppings. How many ways are there to order a pizza?

Lelu [443]

Answer:

There are 20 ways the pizza can be ordered.

Step-by-step explanation:

Choices available in Sizes = 4

Choices available is toppings = 5

Since these choices are mutually exclusive,

So, by the PERMUTATION RULE

Number of ways a pizza can be ordered is : 4 x 5 = 20

So, there are 20 ways the pizza can be ordered.

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3 years ago

An airplane pilot can see the top of a traffic control tower at a 20 degree angle of depression. the airplane is 5,000 feet away

daser333 [38]

The given question describes a right triangle with with one of the angles as 20 degrees and the side adjacent to the angle 20 degrees is of length 5,000 feet. We are looking for the length of the side opposite the angle 20 degrees.

Let the required length be x, then

$\tan{20^o}=\cfrac{opp}{hyp}=\cfrac{x}{5,000}\\ \\ \Rightarrow x=5,000\tan{20^o}=1,819.85$

Therefore, the height of the airplane above the tower is 1,819.85 feet.

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3 years ago

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