MATHEMATICS HIGH SCHOOL

Which statement is true about the function f(x)= x?O The domain of the graph is all real numbers.
The range of the graph is all real numbers.
The domain of the graph is all real numbers less than or equal to 0.
The range of the graph is all real numbers greater than or equal to 0.
Which statement is true about the function f(x)= x? O - 1

Answers

Answer 1
Answer:

Answer:

D

Step-by-step explanation:

√(x) only takes positive inputs and only outputs positive integers

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Nicole runs 6 miles in 45 minutes. At the same rate, how many minutes would she take to run 4 miles?

Answers

Answer:

30 minutes

Step-by-step explanation:

6=45

4=x

6x2/3=4

45x2/3=30

x=30

Answer:

66 minutes

Step-by-step explanation:

40,43,40,39,50,23 what is the median?

Answers

Median is the middle number, but since there is 6 numbers.
Put them in order first
23,39,40,40,43,50
Well in middle is 40 for both sides
So to solve median for this you'd add the two middle numbers together since there is even set of numbers.
40+40 =80 then divide by 2
80÷2=40
Median = 40
*Follow This Example for any other even sets of numbers for Median*
The median of this data set is 40. This is because when put in order from greatest to least the order is:
23, 39, 40, 40, 43, 50
So the middle number is 40.

Pablo folds a straw into a triangle with side lengths of 4x2 – 3 inches, 4x2 – 2 inches, and 4x2 – 1 inches. The perimeter of the triangle is 12x2 – 6 inches. If x = 1.5, what was the length of the straw before it was folded?

Answers

The perimeter is the sum of the lengths of the traingle. So,
P = 12x2 - 6
Plugging in the given value of x,
P = 12 (1.5)^2 - 6
P = 21 inches

Assuming that the ends of the straw are not overlapping in forming the triangle, the perimeter is just equal to the original length of the straw.

Help, 3+7x=12, what is x?

Answers

So just your normal equation. 
We need to isolate x alone. 
First lets write out our equation 
3 +7x = 12 

Lets do this step by step. 

first subtract 3 from both sides. 
3 + 7x = 12  
-3        = -3  it cancels out on the left side and we solve on the right side. 
*************
7x = 9 

second we divide both sides by 7 
7x = 9 
÷7 = 7      we got the x alone and we just write 9/7 as our answer. 

x = 9/7 

Or as a decimal. 
9/7 could be 1.28571428571429

Either will work. 
x = 9/7 
or 
x = 1.28571428571429

Have a nice day. :)

Subtract and simplify. (14x^2+8)-(6x^2+5x-1)

Answers

14x^2 + 8 - (6x^2 + 5x - 1) ...distribute the - thru the parenthesis
14x^2 + 8 - 6x^2 - 5x + 1 ....combine like terms
8x^2 - 5x + 9 <==

Rachel deposits $100 in a bank account and she gets 8% simple interest on it. Which linear model gives the return on her investment in terms of time t in years?a. R = 8t – 100
b. R = 8t + 100
c. R = 2t + 100
d. R = 88t + 100
e. R = 3t + 108

Answers

The answer would be B because the 100 stays in there and you are adding 8% per year. Hope this helps.
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