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3 years ago

When rolling a fair dice numbered 1-6 what is the probability of getting an even number

Mathematics

2 answers:

kherson [118]3 years ago

7 0

NO of even number =3
Total number =6
3/6=1/2
Answer =1/2

Sveta_85 [38]3 years ago

4 0

The probability is 50% or 1/2

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If a simple harmonic motion is described by x = 3 cos(πt), starting from t = 0 s, what is the first occurrence of a value of t f

poizon [28]

Answer:

The first occurence of t for which x = 0 is t = 0.5.

Step-by-step explanation:

The harmonic motion is described by the following equation.

$x(t) = 3\cos{\pi t}$

What is the first occurrence of a value of t for which x = 0?

This is t when $x(t) = 0$ . So

$x(t) = 3\cos{\pi t}$

$3\cos{\pi t} = 0$

$\cos{\pi t} = \frac{0}{3}$

$\cos{\pi t} = 0$

The inverse of the cosine is the arcosine. So we apply the arcosine function to both sides of the equality.

$\arccos{\cos{\pi t}} = \arccos{0}$

$\pi t = \frac{\pi}{2}$

$t = \frac{\pi}{2 \pi}$

$t = \frac{1}{2}$

$t = 0.5$

The first occurence of t for which x = 0 is t = 0.5.

3 0

3 years ago

Verify that the segments are parallel

kozerog [31]

Answer:

We know that lines AB and CD are parallel because if you expand them, we know they will never touch.

Step-by-step explanation:

4 0

3 years ago

Find a factor pair of 80 that has a sum of 21

uranmaximum [27]

16 and 5 are the factors

8 0

3 years ago

Read 2 more answers

PLEASE HELP ASAPPP!!! 15PT QUESTION!!! Suppose that a ball is rolling down a ramp. The distance traveled by the ball is given by

Sever21 [200]

Answer:

The average velocity of the ball is $137.5 \:ft/sec$

Step-by-step explanation:

First find the velocities at given times and then form two points. Calculate the slope to find the average velocity. The two points are:

$\left(6,\:396\right)\quad and \quad \:\left(6.5,\:464.75\right)$

$\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}=\frac{464.75-396}{6.5-6}$

$m=137.5$

Best Regards!

5 0

3 years ago

Can someone help answer this please?

Dmitriy789 [7]

C= (31+7)1/2
Carlos has 19 points

double check
19•2 = 38-7 = 31

7 0

3 years ago