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3 years ago

I am crying I asked this question 5 times and everyone just takes my points and doesn't help me. I need help. Please?

Mathematics

1 answer:

olchik [2.2K]3 years ago

5 0

I think the probability of drawing a king card on the first draw is 1/12

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What is the answer to this?

coldgirl [10]

Answer:

C.) $A=12x-20$

Step-by-step explanation:

The area formula:

$A=l*w$

Insert the values:

$A=4*(3x-5)$

Use the distributive property:

$A=4(3x)+4(-5)\\\\A=12x-20$

:Done

7 0

4 years ago

Identifying roots - Pre calculus stuff

umka2103 [35]

The answers are 0 and 2

This can be found by looking at the x axis and finding every point where the line crosses

4 0

3 years ago

In relation t a functions? Is the inverse of relation t function

frozen [14]

Answer:

Relation t is a function. The inverse of relation t is not a function ⇒ 3rd

Step-by-step explanation:

* Lets explain how to solve the problem

- A relation is a set of inputs and outputs, and a function is a relation

with one output for each input

- Ex: T = {(1 , 2) , (3 , 5) , (-4 , 0)} is a function because every input has

only one output

- To find the inverse of a function we switched the input and the

out put

- The inverse of a function may not always be a function

* Lets solve the problem

∵ The relation t is the set of ordered pairs of x and y

x = 0 2 4 6

y = -8 -7 -4 -4

∵ x = 0 has only y = -8

∵ x = 2 has only y = -7

∵ x = 4 has only y = -4

∵ x = 6 has only y = -4

∴ Every value of x has only one value of y

∴ Relation t is a function

* Lets find its inverse by switching x and y

∵ The inverse function of t is :

x = -8 -7 -4 -4

y = 0 2 4 6

∵ x = -8 has only y = 0

∵ x = -7 has only y = 2

∵ x = -4 has y = 4 and y = 6

∴ Not every value of x has only one value of y

∴ The inverse of relation t is not a function

* Relation t is a function. The inverse of relation t is not a function

4 0

3 years ago

A study shows that employees who begin their workday at 9:00 a.m. vary their times of arrival uniformly from 8:40 a.m. to 9:30 a

jeka94

Answer:

0.2 or 20%

Step-by-step explanation:

If the times of arrival vary uniformly, there is an equal chance of an employee reporting at any given time between 8:40 and 9:30.

The range between 8:40 and 9:30 is 50 minutes.

The range between 9:00 and 9:10 is 10 minutes.

Therefore, the probability that a randomly chosen employee reports to work between 9:00 and 9:10 is:

$P(9:00\leq X\leq 9:10)=\frac{10}{50}=0.20=20\%$

The probability is 0.2 or 20%.

6 0

3 years ago

I need help on this. I’m so confused

12345 [234]

The answer is “12p+10”
4p+8p+10
12p+10

8 0

3 years ago