What's the product of 4 2⁄3 and 11 1⁄4 ?

Mathematics

1 answer:

Svetlanka [38]3 years ago

5 0

4 2/3 * 11 1/4

14/3 * 45/4 = 630/12 = 52 6/12 = 52 1/2

OPTION B IS YOUR ANSWER....

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A resting heart rate for men on a chart say 62-65 beats per minute puts men in the good category of scott counted 238 heart beat

olganol [36]

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3 years ago

In a given right triangle, If 0 º < x < 90 º and cos x = √ 3 / 2, then sin x = ?

nordsb [41]

Answer:

1/2

Step-by-step explanation:

The "Pythagorean relation" between trig functions can be used to find the sine.

<h3>Pythagorean relation</h3>

The relation between sine and cosine is the identity ...

sin(x)² +cos(x)² = 1

This can be solved for sin(x) in terms of cos(x):

sin(x) = √(1 -cos(x)²)

<h3>Application</h3>

For the present case, using the given cosine value, we find ...

sin(x) = √(1 -(√3/2)²) = √(1 -3/4) = √(1/4)

sin(x) = 1/2

<em>Additional comment</em>

The sine and cosine of an angle are the y and x coordinates (respectively) of the corresponding point on the unit circle. The right triangle with these legs will satisfy the Pythagorean theorem with ...

sin(x)² + cos(x)² = 1 . . . . . . where 1 is the hypotenuse (radius of unit circle)

A calculator can always be used to verify the result.