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You wrote the Pythagorean Theorem, which basically states that in a RIGHT triangle, the lenght of the hypoteneuse (c) squared is equal to the sums of the squares of the other two sides ('a' and 'b')

GuestNov 6, 2015

#2

0

Simplify the following:
-(((-7)/14-2) x)/(2)-1

The gcd of -7 and 14 is 7, so (-7)/14 = (7 (-1))/(7×2) = 7/7×(-1)/2 = (-1)/2:
-1-(((-1)/2-2) x)/(2)

Put -1/2-2 over the common denominator 2. -1/2-2 = -1/2+(2 (-2))/2:
-1-(-1/2-(2×2)/2 x)/(2)

2 (-2) = -4:
-1-((-4/2-1/2) x)/(2)

-1/2-(4)/2 = (-1-4)/2:
-1-((-1-4)/2 x)/(2)

-1-4 = -5:
-1-(-5 x)/(2×2)

2×2 = 4:
-(-5 x)/4-1

-(-5) = 5:
(5 x)/4-1

Put each term in (5 x)/4-1 over the common denominator 4: (5 x)/4-1 = (5 x)/4-(4)/4:
(5 x)/4-(4)/4

(5 x)/4-(4)/4 = (5 x-4)/4:
Answer: |
| 1/4 (5 x-4) =5x/4 - 1

GuestNov 6, 2015

#1

0

0.5714285714285714

GuestNov 6, 2015

#2

+5

Again, Chris has it correct. As an aside: The temperature drope per 1000ft elevation gain is referred to as the 'lapse rate'. The 'standard' lapse rate is generally 3.5 degrees drop per 1000 ft altitude gain, so when your airplane is flying at 30,000 ft you can see that it is QUITE cold outside !! (approx 115 degrees colder than sea level temperature)

GuestNov 6, 2015

#2

0

Simplify the following:
8 x-2 (-4+3 x+2 y)-12 x

Grouping like terms, 8 x-2 (-4+3 x+2 y)-12 x = -2 (-4+3 x+2 y)+(8 x-12 x):
-2 (-4+3 x+2 y)+(8 x-12 x)

8 x-12 x = -4 x:
-4 x-2 (-4+3 x+2 y)

-2 (-4+3 x+2 y) = 8-6 x-4 y:
8-6 x-4 y-4 x

Grouping like terms, 8-6 x-4 y-4 x = -4 y+(-6 x-4 x)+8:
-4 y+(-6 x-4 x)+8

-6 x-4 x = -10 x:
-4 y+-10 x+8

Factor 2 out of -4 y-10 x+8:
Answer: |
| 2 (-2 y-5 x+4) = -10x -4y + 8

GuestNov 6, 2015

#1

0

France does not have an 'equator' , the EARTH does. AND the Equator is not an AREA so you cannot add it to the AREA of China. Do you meant the AREA of France and the AREA of China perhaps? If so, get your Google fingers working to find those areas and add them together.

GuestNov 6, 2015

#1

0

hey