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djyliett [7]
3 years ago
15

Complete the proof VW~=TU

Mathematics
1 answer:
jeka943 years ago
6 0

Answer:

You need to put more information next time

Step-by-step explanation:

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Please help me !!!!
liq [111]

Answer:

...

against the wind, an airplane travels 3640 km in 7 hours.

with the wind, the same plane travels 6000 km in 6hrs.

...

let speed of plane in still air be x mph

speed of wind be y mph.

..

t=d/r

..

against wind speed = x-y mph

with wond speed = x=y mph

...

3640/(x-y)=7

3640 = 7x-7y

/7

520=x-y.....................1

...

6000/x+y = 6

6000 = 6x+6y

/6

1000=x+y.....................2

...

Add (1) & (2)

2x=1520

/2

x=760 mph speed of plane in still air

...

plug value of x in 2

1000=760+y

100-760=y

240 = y

240 mph speed of wind

8 0
3 years ago
I had $88. then i earned $29 walking dogs. after I spent money for concert tickets, I have $74 remaining. estimate how much mone
klemol [59]

Answer:

$43

Step-by-step explanation:

88+29=117

117-74=43

You Spent $43 For The Concert.

7 0
4 years ago
Read 2 more answers
It is given that f(x) = 2x2 - 12x + 10.
Furkat [3]

Answer:

a = 2, b = - 3, c = - 8

Step-by-step explanation:

Expand f(x) = a(x + b)² + c and compare coefficients of like terms, that is

a(x + b)² + c ← expand (x + b)² using FOIL

= a(x² + 2bx + b²) + c ← distribute parenthesis by a

= ax² + 2abx + ab² + c

Compare like terms with f(x) = 2x² - 12x + 10

Compare coefficients x² term

a = 2

Compare coefficients of x- term

2ab = - 12, substitute a = 2

2(2)b = - 12

4b = - 12 ( divide both sides by 4 )

b = - 3

Compare constant term

ab² + c = 10 , substitute a = 2, b = - 3

2(- 3)² + c = 10

18 + c = 10 ( subtract 18 from both sides )

c = - 8

Then a = 2, b = - 3, c = - 8

 

8 0
3 years ago
On this number line, zero represents sea level. Plot the following points based on the description provided by dragging and drop
Mice21 [21]

what are the points? i need more information

6 0
3 years ago
If x equals 6 what is 5x-(3+9
RSB [31]
I think it is 18 Hope this helps. :)
7 0
3 years ago
Read 2 more answers
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