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charle [14.2K]
3 years ago
9

If one swiss franc can purchase $0.71 u.s. dollars, how many swiss francs can one u.s. dollar buy? 0.50 0.71 1.00 1.41 2.81

Mathematics
1 answer:
EastWind [94]3 years ago
8 0
0.71 dollars  = 1 franc
1 dollar  =  1/0.71 francs  =  1.41 francs
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Work out an equation of the straight line with gradient 3 that passes through the point with coordinates (2, 4).
Gnom [1K]

Answer:

The answer is

\huge \boxed{y = 3x - 10}

Step-by-step explanation:

To find an equation of a line given the slope and a point we use the formula

y -  y_1 = m(x -  x_1)

where

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We have the final answer as

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\color{Blue}\huge\boxed{Answer}

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Taya2010 [7]

<u>Answer and explanation</u>

(1+sinθ)(1-sinθ)=cos²θ

We are to prove that the left hand side is equal to the right hand side.

(1+sinθ)(1-sinθ) = 1(1-sinθ) + sinθ(1-sinθ)

                         = 1 - sinθ + sinθ - sin²θ

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From the trigonometric identity sin²θ + cos²θ = 1,

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