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3 years ago

I don’t really understand this anyone here to help

Mathematics

1 answer:

Troyanec [42]3 years ago

8 0

Answer:

1/10 5 2

20 1 1/20

1/2 1/5 10

Step-by-step explanation:

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QUESTION IN THE PICTURE HALPPPPP

9966 [12]

Answer:

All real numbers

Step-by-step explanation:

All vertical parabolas have a domain of all real numbers

5 0

3 years ago

Suppose on a certain planet that a rare substance known as Raritanium can be found in some of the rocks. A raritanium-detector i

aleksandrvk [35]

Answer:

0.967 = 96.7% probability the rock sample actually contains raritanium

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Positive reading

Event B: Contains raritanium

Probability of a positive reading:

98% of 13%(positive when there is raritanium).

0.5% of 100-13 = 87%(false positive, positive when there is no raritanium). So

$P(A) = 0.98*0.13 + 0.005*0.87 = 0.13175$

Positive when there is raritanium:

98% of 13%

$P(A) = 0.98*0.13 = 0.1274$

What is the probability the rock sample actually contains raritanium?

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.1274}{0.13175} = 0.967$

0.967 = 96.7% probability the rock sample actually contains raritanium

7 0

3 years ago

6. In right triangle ABC, mZC=3y-10,

lorasvet [3.4K]

Answer:

scalene

Step-by-step explanation:

step 1

Find the value of y

we know that

The sum of the interior angles in a triangle must be equal to 180 degrees

In this problem

m∠A+m∠B+m∠C=180°

substitute the given values

$90\°+(y+40)\°+(3y-10)\°=180\°$

Solve for y

$4y+120=180$

$4y=180-120$

$4y=60$

$y=15$

step 2

Find the measure of angle B

m∠B=(y+40)°

substitute the value of y

m∠B=(15+40)=55°

step 3

Find the measure of angle C

m∠C=(3y-10)°

substitute the value of y

m∠C=(3(15)-10)=35°

The three interior angles are different

The three sides of the ABC triangle will also be different

therefore

The right triangle ABC is scalene

6 0

3 years ago

What is input what is output

uranmaximum [27]

Step-by-step explanation:

Input:

Input is generally defined as the information that is sent or passed to a computer or the information what is taken. The devices that are used to give or offer such information is know as Input devices.

For example:

We usually use keyboard to type and give a specific data to the computer and hence it can be considered as an Input device.

Output:

Output is generally defined as the source of information that is received or processed by the computer or the information what is given back. The devices that are used to give back such information is know as Output devices.

Example:

Printers takes the input from us,process it and gives back the output in the form of printed sheets,Hence it can be considered as Output device.

5 0

3 years ago

(-3x^6)^5

Alekssandra [29.7K]

Answer:

-18*5 is you answer aka -90

8 0

3 years ago