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3 years ago

10

A number cube with the numbers 1 through 6 is rolled. What is the probability of the number cube showing an even number or a num

ber greater than 2?

1 answer:

inna [77]3 years ago

8 0

Answer:

Step-by-step explanation:

The correct answer is 5/6 = 83.3%

I really hope this helps!

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3/5 x 11 .................

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3/5 * 11

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3 years ago

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All equivalent fractions of 4/5

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8/10 or 16/20

Step-by-step explanation:

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3 years ago

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The cosine of 55 1/2 degrees is approximately 0.566. What angle, in degrees, has a sine of approximately 0.566?

astra-53 [7]

Given:

$\cos (55\dfrac{1}{2})^\circ\approx 0.566$

To find:

The angle, in degrees, that has a sine of approximately 0.566.

Solution:

We know that,

$\sin(90^\circ-x)=\cos x$

We have,

$\cos (55\dfrac{1}{2})^\circ\approx 0.566$

Using the above trigonometric identity, it can be written as:

$\sin (90-55\dfrac{1}{2})^\circ\approx 0.566$

$\sin (90-\dfrac{110+1}{2})^\circ\approx 0.566$

$\sin (90-\dfrac{111}{2})^\circ\approx 0.566$

Taking LCM, we get

$\sin (\dfrac{180-111}{2})^\circ\approx 0.566$

$\sin (\dfrac{69}{2})^\circ\approx 0.566$

$\sin (34\dfrac{1}{2})^\circ\approx 0.566$

Therefore, the angle $34\dfrac{1}{2}$ degrees has a sine of approximately 0.566.

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3 years ago