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vodka [1.7K]
3 years ago
9

Find the cos sin and tan

Mathematics
1 answer:
Taya2010 [7]3 years ago
3 0

Answer:

Step-by-step explanation:

Sin= o/h = 23/40 = 0.575 = sin^-1(0.575) = 35.1 degrees

Cos = a/h = 37/40 = 0.925 = cos^-1(0.925) = 22.3 degrees

Tan= o/a = 23/37 = 0.622 = tan^-1(0.622) = 31.9 degrees

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The level of a lake in inches is falling linearly . The lake level is 452 inches on Jan 1 and then 378 inches on Jan 21. Find a
Marysya12 [62]

Answer:

y=-\frac{74}{21}x+452

Step-by-step explanation:

Given:

The level of a lake is falling linearly.

On Jan 1, the level is 452 inches

On Jan 21, the level is 378 inches.

Now, a linear function can be represented in the form:

y=mx+b

Where, 'm' is the rate of change and 'b' is initial level

x\to number\ of\ days\ passed\ since\ Jan\ 1

y\to Lake\ level

So, let Jan 1 corresponds to the initial level and thus b = 452 in

Now, the rate of change is given as the ratio of the change in level of lake to the number of days passed.

So, from Jan 1 to Jan 21, the days passed is 21.

Change in level = Level on Jan 21 - Level on Jan 1

Change in level = 378 in - 452 in = -74 in

Now, rate of change is given as:

m=\frac{-74}{21}

Hence, the function to represent the lake level is y=-\frac{74}{21}x+452

Where, 'x' is the number of days passed since Jan 1.

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Alysha is two years younger than Bryce the sum of their ages is 28 how old is Alysha
vova2212 [387]
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Read 2 more answers
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r-ruslan [8.4K]

Answer:

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Step-by-step explanation:

This stuff is quite easy in reality. Here's a little example including your numbers.

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by this point we are left with simplifying it. Since it's a double negative we get a positive. Thus x=1

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3 years ago
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