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aliya0001 [1]
3 years ago
12

a pilot can see the runway she is about to land on directly ahead. When looking at each end of the runway the angles of depressi

on are 45 degrees and 42 degrees. If the airplane is 1500 ft off the ground, how long is the runway?
Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
4 0
We develop two different right triangles in which the opposite side to the given angle of depression is 1500 ft and the length of the runway is the y.
                (45°) -->       tan (45°) = 1500 ft / y₁  
                                                     y₁ = 1500 ft
                (42⁰) -->        tan (42⁰) = 1500 ft / y₂
                                                      y₂ = 1665.92 ft
Finding the difference between two y's, the answer would be 165.92 ft. 
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Erika worked 14 hours last week and 20 hours this week. If she earns $9 per hour, how much did she earn during these two weeks
IrinaK [193]
$9 per hour for 14 hours the first week can be found by doing 9 • 14, which equals 126.
In the first week, Erika earned $126.
$9 per hour for 20 hours for the second week can be found by doing 9 • 20, which equals 180.
In the second week, Erika earned $180.
To find the total amount Erika earned in both weeks, add how much she made in week 1 to how much she made in week 2.
126 + 180 = 306
Erika made $306 during these 2 weeks.
6 0
3 years ago
At an amusement park, a group of 154 people wants to ride the roller coaster. If each car on the roller coaster holds 9 people,
Vsevolod [243]

Answer:

1

Step-by-step explanation:

you simply divide 154 by 9, get around 17.1. 17 is the closest whole number answer, so 17*9 is 153.

do 154-153, you get 1.

not the best explaination but i hope it helps.

6 0
3 years ago
Please help with this im super lost and confused
postnew [5]

Answer:

D) C': ( -3, -2), D': ( -4, 1), E': ( -1, -2)

Step-by-step explanation:

Formula for this equation:

(x - 5, y - 3)

C:

(2, 1)

(x - 5, y - 3)

C': ( -3, -2)

E:

(4, 1)

(x - 5, y - 3)

E': ( -1, -2)

D:

(1, 4)

(x - 5, y - 3)

D': ( -4, 1)

3 0
3 years ago
Hurry please!<br> Find the slope <br> A. -3/5<br> B. 3/5<br> C. -5/3<br> D. 5/3
IceJOKER [234]

Answer:

\frac{5}{3} should be correct!

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Find the minimum or maximum value of the function g(x)= -(x-2)^2-3
Nady [450]
Neato

assuming you mean
g(x)=-1(x-2)^2-3
remember
in form
f(x)=a(x-h)^2+k
a is leading coficient
(h,k) is vertex
k will be the minimum or max value of the function
if a is positive, then the parabola opens up and k is minimum
if a is negative, then the parabola opens down and k is max

given
g(x)=-1(x-2)^2-3
a is negative
the parabola opens down and k is the max value
it is -3
the max value is -3, which occors at x=2
g(2)=-3 is max
3 0
3 years ago
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