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astraxan [27]
2 years ago
8

TIME LIMIT PLEASE HELP ASAP

Mathematics
1 answer:
SashulF [63]2 years ago
4 0

Answer:

y = 8, x = 4

Step-by-step explanation:

idk whether y is hardcover or paperback of vice versa and i can't explain if there's a timelimit it'll take too long

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A weather plane took to the skies to measure the speed of the jet stream. The plane flew 1920 km with the jet stream as a tail w
Alex
For this case, the first thing we must do is define variables:
 p: plane speed
 w: wind speed
 With the wind in favor, the speed is:
 p + w = 1920/2

 With the wind against the speed is:
 p - w = 1920 / 3.2

 Rewriting both equations, we have the following system of equations:
 p + w = 960

p - w = 600
 Then, solving the system of equations (graphically for example), we have the solution is: 
 p = 780

w = 180
 Therefore, jet stream's speed:
 w = 180 km / h

 Answer:
 
A) p + w = 960; p - w = 600; jet stream's speed = 180 km / h
7 0
3 years ago
How would you write this equation in terms of sin and cos as well as simplify it from there?
ziro4ka [17]
Try this option:
(1+ \frac{cosx}{sinx})(1- \frac{cosx}{sinx})- \frac{1}{sin^2x}= \frac{sin^2x-cos^2x}{sin^2x}- \frac{1}{sin^2x}=
= \frac{sin^2x-cos^2x-sin^2x-cos^2x}{sin^2x}=- \frac{2cos^2x}{sin^2x}.
or -2ctg²x
8 0
3 years ago
18)Write 4 expressions that are equivalent to 6(c<br> 5) - 6?
Vikki [24]

Answer:

the answer is 6C+24 or if you divide 6 on both sides c+4

examples/expressions:

1. 4(1.5c+6)

2. 3(2c+8)

3. 2(3c+12)

4. 12(0.5c+2)

4 0
2 years ago
How many times can 6 go into 58
swat32
58 ÷ 6 = 9/2/3

i am a mathematics teacher. if anything to ask please pm me
4 0
3 years ago
Under what condition the composite function of any two function is an identity function?
Veseljchak [2.6K]

Answer:

under the condition of f(x)=x composite function is an identity one

6 0
2 years ago
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