Isaac and Albert spot a hot air balloon flying at a low altitude. They decide to calculate its height by standing 400 feet apart on a level surface and measuring the angle of elevation to the balloon. From
Albert, the balloon was at an angle of elevation of 62°and from Issac its was 48º. Determine the height of
the balloon above the ground to the nearest foot.

Answers

Answer 1

Answer:

144 feet to nearest foot.

Step-by-step explanation:

Let the distance between Albert and the point on the ground that the balloon is directly above be x feet Then for Isaac the distance is 400 - x feet

So we have 2 right angled triangles and:

tan 62 = h/x

tan 48 = h / (400- x)         where h is the height of the balloon.

From the first equation x = h / tan 62 so plugging this into the second one:

tan 48 =  h /  ( 400 - h/tan 62)

h = 400 tan 48 - h tan 48 tan 62

h + h tan 48 tan 62 = 400 tan 48

h ( 1 + tan48 tan62) = 400 tan48

h = 400 tan 48 / (1 +  tan 48 tan 62)

= 143.8 feet.


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The answer to your question is 120

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Answer: 108 sq units

Step-by-step explanation:

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Answer:

it would be number two.

Step-by-step explanation:

It's basically just asking which angles are similar. look at the angels and if you use a protractor you can do exact measurements. It looks complex but its not just go step by step, stay calm. Glad to help!

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what is the probability of rolling a standard die twice and getting an even number, then 5?

Answers

Answer: 22.222% or .2222

Step-by-step explanation:

There are 6 sides on a standard die. Two of the numbers (1&4) are perfect squares so the chances of getting a perfect square on the first roll is 2/6. There are 4 numbers less than 5 (1,2,3,4). The chances of rolling a number less than 5 on the second roll is 4/6. The probability of two events is equal to the product of those events or in this case 2/6 x 4/6 which is 8/36. Which reduces to 2/9. That’s 22.222% or .2222

1). There are 25 students in grade 7. 15 are boys and others are girls. A
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Answers

Answer: 1) 15:25 or 15/25 2) 10:25 or 10/25

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Hiiiiiiiiiiiiiiiiiiii take your best guess

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pls help ASAP

Answers

9514 1404 393

Answer:

  (b)  y = -2x +3

Step-by-step explanation:

Subtract the 2x term to get y by itself on the left.

  2x -2x +y = 3 -2x

  y = -2x +3 . . . . . . . matches slope-intercept form y = mx +b

HURRY PLEASE I NEED HELP

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Step-by-step explanation:

as I guess it's a link question between some others so can you show us whole quetsion of it

If the circle below is cut from the square of plywood below, how many square inches of plywood would be left over? Use π = 3.14, and round your answer to the nearest hundredth

Answers

Answer:

86in²

Step-by-step explanation:

Find the complete question attached

Area of the circle = πr²

Area of the square = L²

Length of the side of the square

r is the radius of the circle

r = L/2 = 20/2 =10in

Given

Length of the side of the circle = 20in

Area of the square = 20²

Area of the square = 400in²

Area of the circle =π(10)²

Area of the circle = 3.14(100)

Area of the circle= 314in²

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Please help me this is my final!!!

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Answer:

A

Step-by-step explanation:

I fricked up last time, it's a

if you need me to explain then ask

Answer: hello

your answer is A.) 2700

Step-by-step explanation:

I hope it helps

have a nice day

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Answers

Answer:

1 ) ∠1 = 105    ∠2 = 75

2) ∠1 = 50     ∠2 = 50

Step-by-step explanation:

what is this pls and i will give you a brainliest

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Answer:

the picture is blurry repost it

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Enter the missing values.

Answers

Answer:

50/52/2

85/87/(2)

-6/-3/(3)

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Answer:

answer below

Step-by-step explanation:

Antarctica ( average temperature in 1960 Fahrenheit) = -11

Khartoum, Sudan ( change from 1960 to 2014 Fahrenheit) = 2

Greenland ( change from 1960 to 2014 Fahrenheit) = 3

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Answer:

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Step-by-step explanation:

$17 divided by 20% = $85 rounded by the nearest dollar is 90 ??????

I GOT THE POWER IF GOD AND ANIME ON MY SIDE

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WILL AMRK BRAINLIEST IF GOTEN CORRECT

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Answer: if im not mistaken its D

Step-by-step explanation:

Can someone tell me which equation this is
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2. y=1/2x +4
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Answers

Answer:

#3

Step-by-step explanation:

The line follows an inverted slope format, indicated by -2/3. Or down 2, and 3 to the right after going up by 4, creating the line. The other equations would flip the line horizontally because of a positive slope.

Write an equation of a line that goes thru the points (-2, 6) & (3, -4)

Answers

Answer:

The equation of the line is;

y = -2x + 2

Step-by-step explanation:

Here, we want to write the equation of the line that passes through the given points

The general form of the equation is

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Mathematically, to get the slope, we use the slope formula

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Answers

Answer:

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Step-by-step explanation:

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Answers

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Answers

Answer:

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Step-by-step explanation:

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Hopes this helps:

Answer:

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Answers

Answer:

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

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The second one is correct

Answer:

the first one is wrong the second one is right

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Answer:

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Step-by-step explanation:

Hope this helps :)

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Answers

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

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Answers

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Step-by-step explanation:

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Step-by-step explanation:

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