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Alex73 [517]
3 years ago
5

A lighthouse beacon can be seen 17mi in all directions. To the nearest square mile, what is the area over which the beacon can b

e seen?
Mathematics
1 answer:
Alchen [17]3 years ago
7 0
Imagine this as a circle. The circle will have a radius of 17mi and the lighthouse will be in the middle. The area of the circle will be the area over which the beacon can be seen.

A=\pi  r^{2} is the equation for the area of the circle where A is the area.

Now we simply plug in our information

A=\pi  (17)^{2}
A=907.9mi^{2}
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PLEASE HELP ME EASY 8TH GRADE MATH!!!!
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Answer: The probability is 3 out of 20

Step-by-step explanation:

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Coach Lucas kept track of the number of shots each basketball player took in a game.
Alisiya [41]

Answer:

20

Step-by-step explanation:

All you need to do is find the highest number in this table. In this instance, the answer is 20.

8 0
2 years ago
The farmer's market sells fruit baskets. Each basket contains 12 apples and 4 pears. Use a to represent the cost of each apple a
romanna [79]

Answer:

a) a x 12

b) p x 4

c) (a x 12) + (p x 4)

Step-by-step explanation:

These are the answers because:

1) Since a is representing the cost of each apple, we have to multiply the a with 12.

2) Since p is representing the cost of each pear, we have to multiply the p with 4.

3) Finally, for c, each basket contains 12 apples and 4 pears. Therefore, we just use our eautions from before and add them which will give you the total cost of one basket.

Hope this helps! :D

7 0
2 years ago
What is the slope of the line given by the equation below? y - 9 = 15(x - 5)
Elina [12.6K]
Y - 9 = 15x - 75

y = 15x - 75 + 9

y = 15x - 66              y = mx + c,   slope = m

m = slope = 15
7 0
3 years ago
Each line represents a proportional relationship. Write an equation for each line. Show your work.
tiny-mole [99]

Answer:

The equation of line a is y = x

The equation of line b is y =  \frac{2}{3} x

Step-by-step explanation:

The equation of the proportional is y = m x, where

  • m is the slope of the line (constant of proportionality)

The rule of the slope of a line is m = \frac{y2-y1}{x2-x1} , where

  • (x1, y1) and (x2, y2) are two points on the line

∵ Line a passes through points (0, 0) and (3, 3)

∴ x1 = 0 and y1 = 0

∴ x2 = 3 and y2 = 3

→ Substitute them in the rule of the slope above

∵ m = \frac{3-0}{3-0}=\frac{3}{3}

∴ m = 1

→ Substitute in the form of the equation above

∴ y = (1)x

∴ y = x

∴ The equation of line a is y = x

∵ Line b passes through points (0, 0) and (3, 2)

∴ x1 = 0 and y1 = 0

∴ x2 = 3 and y2 = 2

→ Substitute them in the rule of the slope above

∵ m = \frac{2-0}{3-0}=\frac{2}{3}

∴ m = \frac{2}{3}

→ Substitute in the form of the equation above

∴ y = (\frac{2}{3}) x

∴ y =  \frac{2}{3} x

∴ The equation of line b is y =  \frac{2}{3} x

7 0
3 years ago
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