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3 years ago

Please help will give brainliest to correct and explained answer

Mathematics

1 answer:

stepladder [879]3 years ago

7 0

Answer:

C. D: -2≤x≤3 ; R: -1≤y≤4

Step-by-step explanation:

The domain is all the values on the x-axis (horizontally) and the range is all the values on the y-axis (vertically).

The x-axis values (domain) go from -2 to +3, which is -2≤x≤3.

The y-axis values (range) go from -1 to +4, which is -1≤y≤4.

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Some researchers claim there is an association between taking vitamins and gaining weight. They took a random sample of people l

netineya [11]

Answer:

The probability that he or she has gained weight, given that he or she takes more than one vitamin per day is 0.47

Step-by-step explanation:

Has Gained Weight Has Not Gained Weight

Does not take vitamins 52 19

Takes one vitamin per day 35 49

Takes more than one vitamin per day 72 80

We are supposed to find the probability that he or she has gained weight, given that he or she takes more than one vitamin per day

A= he or she has gained weight

B=he or she takes more than one vitamin per day

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

$A \cap B = 72$

B = 72+80=152

So, $P(A|B)=\frac{72}{152}=0.47$

So, Option C is true

Hence the probability that he or she has gained weight, given that he or she takes more than one vitamin per day is 0.47

6 0

3 years ago

QUESTION 3

beks73 [17]

Answer:

31.62

wala ako maisip ehh

8 0

3 years ago

Mr. Red's first year salary is $30,000 and it increases by $500 each year. What is the explicit rule for this sequence in simpli

MA_775_DIABLO [31]

The required recursive function will be expressed as an = 3000 + 500n

<h3>How to write recursive functions</h3>

Given the following parameters

First year salary = $30,000

If it increases by $500 each year, let the number of years be "n", then the increment after "n" years is 500n

The required recursive function will be expressed as an = 3000 + 500n

Learn more on recursive function here: brainly.com/question/489759

5 0

3 years ago

For the following system, use the second equation to make a substitution for y in the first equation. 3x + y = 2 y + 4 = 3x

expeople1 [14]

First, set the second equation with y as the isolated variable. To do this, subtract 4 from both sides to get
$y = 3x - 4$
Now that you know the value of y, put that expression in for y in the first equation to get
$3x + (3x - 4) = 2$
Then, simplify by adding the x terms together to get
$6x - 4 = 2$
add 4 on both sides to isolate the x terms to get
$6x = 6$

then divide 6 from both sides to get
$x = 1$
Using that x value, plug it into one of the equations as x to find y ( I will use y=3x-4)
$y = 3(1) - 4 = 3 - 4 = - 1$
x=1 and y=-1 is the answer

5 0

3 years ago

Lea and her father arrived at the scenic overlook 15 minutes before noon and left 12 minutes after noon using am or pm write the

Aneli [31]

Answer:

They arrived at am and left at pm

Step-by-step explanation:

What do you need to find?

We need to find the time when Lea and her father arrived at the scenic overlook and the time when they left.

What do you need to find first?

First we need to find the exact minutes they arrived and left. Then we have to determine whether it was am or pm

Steps:

1. Noting the time they arrived

They arrived 15 minutes before noon

2. Determining whether it was am or pm

Noon is 12 pm by convention

Midnight is 12 am by convention

3. Calculating the minutes for exact time

Each hour has 60 minutes:

60 - 15 = 45

4. Determining the time(am or pm) after subtracting 15 minutes

which means they arrived at 11:45 am (am is used for time before 12 at noon)

5. They left 12 minutes after the noon:

Noon time is 12 pm

6. Adding 12 minutes to 12pm

The exact time becomes 12:12pm

4 0

3 years ago