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2 years ago

suppose sin(A)=2/5. Use the trig identity sin^2(A)+cos^2(A)=1 to find cos(A) in quadrant 1. Round to ten-thousandth.

Mathematics

1 answer:

shutvik [7]2 years ago

3 0

Answer:

about0.9165

Step-by-step explanation:

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frosja888 [35]

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3 years ago

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2 years ago

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murzikaleks [220]

Answer: Option a) 3

Step-by-step explanation:

The formula for calculating combinations is as follows

$nCr = \frac{n!}{r!(n-r)!}$

Where "n" is the amount of items in a set and you can choose "r" from them

3C1 reads as: The combination of 1 in 3. You have a set of 3 elements and choose 1 of them.

$n = 3\\\\r = 1$

So :

$3C1=\frac{3!}{1!(3-1)!}\\\\3C1=\frac{3!}{1!*2!}\\\\3C1=\frac{3*2*1}{1*2*1}\\\\3C1=3$

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2 years ago

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Sunny_sXe [5.5K]

$V=hb$

$h= \frac V b$

$h = \dfrac{ x^3 - 3x^2 + 5x - 3}{x^2 -2}$

Expressing that as a quotient and remainder,

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First choice.

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2 years ago

The producte of x and the sum of 6 and 8 times the square of x

seraphim [82]

Product is multiplication.

The first part would be x(6+8) , x times the sum of 6 plus 8.

The second part would be written as x^2, the square of x

Now combine to get:

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