MATHEMATICS HIGH SCHOOL

PLEASE HELP ME THANK YOU SO MUCH!How far away can a person live from a radio station and hear its broadcast if the signal covers a circular area of 40,000 square miles? Write your answer as a whole number.
IM MARKING BRAINLIEST!! :D

Answers

Answer 1
Answer:

Answer:

About 113 miles away.

Step-by-step explanation:

πr^2=40000

40000/π=12732.3954.

sqrt of 12732.3954 is 112.837916 which is about 113

Related Questions

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Line ZR bisects ∠QTS. Which is true? A. m∠QTR = m∠RTS B. m∠ZTS = m∠RTS C. m∠ZTQ = m∠QTR D. m∠STR < m∠QTR
Can someone help? anyone who's taking like geometry?
Which of these number is irrational?the square root of 36 the square root of 49 the square root of 13 the square root of 121
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On 4-7 how do you write the ratio and find the answer?

Answers

Basic trig concepts you have to keep in mind:
SOH CAH TOA
Sine: Opposite of the angle over the hypotenuse
Cosine: Adjacent over hypotenuse
Tangent: Opposite over adjacent
I'll do one of the problems, you should be able to do the rest (It's good practice ;))
sin(L) = 12/15

Jenny is on the local swim team for the summer and has swim practice four days per week. The schedule is the same each day. The team swims in the morning and then again for 2 hours in the evening. If she swims 20 hours per week, how long does she swim each morning?

Answers

Answer:

Number of hours Jenny swims each morning = 3 hours

Step-by-step explanation:

Let Jenny swims 'x' hours in the morning each day.

She swims 2 hours in the evening too.

Total hours she swims each day = (x + 2) hours

If her team swims 4 hours per week then number of hours she swims = 4(x + 2)

If she swims 20 hours in a week then,

4(x + 2) = 20

(x + 2) = 5

x = 5 - 2

x = 3 hours

Therefore, Jenny swims 3 hours each morning.

What is the value of this expression?

(9^2+79)/2^2

(its a fraction)

Answers

Hey there!

Answer: \boxed{40}

Explanation:

Simplify to solve.

\boxed{40}\text{ is your answer.}

Hope this helps!

\text{-TestedHyperr}

Answer:

40

Step-by-step explanation:

(9^2 +79) /2^2

(81 +79) /4

160/4

40

In the figure below, hln. Find the values of z and y.

Answers

To find y:

3y-14=180

3y=194

y=64.7

To find z:

180 - 64.7 = z

z = 115.3

One number is 1 more than 2 times another. Their product is 10. Find the numbers.

Answers

whenever a problem says "one number" and "another number" we can substitute x and y. for this we have x=2y+1 and xy=1. since we know the value of x (2y+1) we can substitute it for the other equation to get (2y+1)y=10. simplify to get 2y^2+y=10. from here you can do a few methods to solve this, but the simplest in my opinion is by factoring. 

In order to factor it must be equal to 0, so we have 2y^2+y-10=0. We factor this and get y=5 (we also get y=-4 but it is an extraneous root). now we can plug that into either equation and find that x=2.

this means our two numbers are 5 and 2

Find the midpoint of the segment with the following endpoints. (6, 4) and (9,9)

Answers

Answer:

15/2, 13/2.

Step-by-step explanation:

Here's a graph as well.

Answer in fraction form = (15/2, 13/2)

Answer in decimal form = (7.5, 6.5)

========================================================

Explanation:

To get the midpoint, we average the two endpoint values. We handle the x and y coordinates separately.

The x coordinates of each point are 6 and 9. They average to (6+9)/2 = 15/2 = 7.5; so you add up the x coordinates and divide by 2.

The y coordinates are handled the same way. Add them to get 4+9 = 13 and then divide by 2 to get 13/2 = 6.5

The midpoint is (15/2, 13/2) = (7.5, 6.5)
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