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3 years ago

Give example to verify if the given statement is true or false

Mathematics

1 answer:

IgorC [24]3 years ago

4 0

Answer:

Step-by-step explanation:

if two numbers are co-prime that is not necessary that one of them must be a prime number

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Find the value of x for this trapezoid.

Lisa [10]

You just add up all of the sides to find the x

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4 years ago

Find the perimeter of this semi-circle with diameter,

Kryger [21]

Step-by-step explanation:

I have written the answer for you...You must know that diameter is twice the radius.

3 0

4 years ago

Given cosθ=1/3, find sin(90-θ)

natta225 [31]

Cos θ=1/3
cos θ=sen (90-θ)
therfore:
sen (90-θ)=1/3

To chek
θ=arc cos 1/3=70.53º

sin (90-θ)=sin (90º-70.53º)=sin 19.47≈0.3333≈1/3

7 0

3 years ago

More than three-quarters of the nation’s colleges and universities now offer online classes, and about 23% of college graduates

RUDIKE [14]

Answer:

0.1997 or 19.97%

Step-by-step explanation:

Have taken course online (H) = 23%

Have NOT taken course online (N) = 77%

Have taken course online and don't believe they provide same value (H&D) = 61%

Have NOT taken course online and don't believe they provide same value (N&D) = 73%

The probability that a student has taken a course online given that she does not believe that online courses provide the same educational value as one taken in person is;

$P(H|D)=\frac{P(H)*P(H\&D)}{P(H)*P(H\&D)+P(N)*P(N\&D)}\\P(H|D)=\frac{0.23*0.61}{0.23*0.61+0.77*0.73}\\P(H|D)=0.1997$

There is a 0.1997 or 19.97% chance that she has taken an online course before.

3 0

4 years ago

Using the slot method and multiple cases, calculate the probability that you would roll 3 sixes.

kotegsom [21]

Answer:

P = 1/216

the probability that you would roll 3 sixes is 1/216

Step-by-step explanation:

For a given dice, there are six possibilities.

We have;

1,2,3,4,5,6

The probability of rolling a six(6) is;

P(6) = 1/6

Then, the probability of rolling 3 sixes is a multiple of the P(6), given as;

P = P(6) × P(6) × P(6)

P = 1/6 × 1/6 × 1/6

P = 1/216

the probability that you would roll 3 sixes is 1/216

4 0

3 years ago