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2 years ago

23. A triangular earring has side lengths of 1.5 centimeters, 2 centimeters, and 3

Mathematics

1 answer:

garik1379 [7]2 years ago

4 0

Answer:

Step-by-step explanation:

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In math, a statement that shows that two expressions are equal.

adoni [48]

Answer:

= this is that two expression two equal numbers

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10 months ago

There is a spinner with 13 equal areas, numbered 1 through 13. If the spinner is spun one time, what is the probability that the

irina [24]

Answer:

0.06

Step-by-step explanation:

probability of multiple of 6= 0.2

probability of multiple of 4= 0.3

0.2 * 0.3 = 0.06

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2 years ago

The random variable X is exponentially distributed, where X represents the waiting time to be seated at a restaurant during the

erastova [34]

Answer:

The probability that the wait time is greater than 14 minutes is 0.4786.

Step-by-step explanation:

The random variable X is defined as the waiting time to be seated at a restaurant during the evening.

The average waiting time is, β = 19 minutes.

The random variable X follows an Exponential distribution with parameter $\lambda=\frac{1}{\beta}=\frac{1}{19}$ .

The probability distribution function of X is:

$f(x)=\lambda e^{-\lambda x};\ x=0,1,2,3...$

Compute the value of the event (X > 14) as follows:

$P(X>14)=\int\limits^{\infty}_{14} {\lambda e^{-\lambda x}} \, dx=\lambda \int\limits^{\infty}_{14} {e^{-\lambda x}} \, dx\\=\lambda |\frac{e^{-\lambda x}}{-\lambda}|^{\infty}_{14}=e^{-\frac{1}{19} \times14}-0\\=0.4786$

Thus, the probability that the wait time is greater than 14 minutes is 0.4786.

7 0

2 years ago

Here's another Math one worth 10.

tia_tia [17]

In a 30-60-90 triangle the side opposite the 30 degree angle is half the length of the hypotenuse.
The short leg is the side opposite the 30 degree angle. If the short leg =x, then the hypotenuse = 2x

The ratio of the short leg to the hypotenuse in the given triangle is cos(60°)

$
cos(60^o) = \frac{adjacent \ side}{hypotenuse } = \frac{x}{2x} = \frac{1}{2}$

Answer is C. 1:2

7 0

2 years ago

Is (-1, 2) a solution to this system of inequalities? 2x + 18y < 7 and 2x - 4y < 12

Reil [10]

Yes

Plug in points

Mark brainliest please

8 0

2 years ago