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scoray [572]
3 years ago
7

which statement could be used to explain why f(x) = 2x – 3 has an inverse relation that is a function? a. the graph of f(x) pass

es the vertical line test. b. f(x) is a one-to-one function. c. the graph of the inverse of f(x) passes the horizontal line test. d. f(x) is not a function.
Mathematics
2 answers:
Mars2501 [29]3 years ago
8 0
B- f(x) is a one-to-one function
alex41 [277]3 years ago
4 0
F(x) is a one-to-one function.
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Simplify<br> 3 to the negative power of 9<br> over 3 to the negative power of 12
Dmitriy789 [7]

Answer:

27

Step-by-step explanation:

3^-9/ 3^-12

Simply change the division into multiplication. The denominator will become numerator. We are doing so because the base are same.

3^-9 * 3^12

Negative sign of power 12 become positive

Add the powers because the base is same.

3^-9+12

3^3

3^3 means multiply 3 three times

3*3*3

=27....

8 0
4 years ago
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What does a linear function look like on a graph
larisa86 [58]

just like a line, straight but long

6 0
3 years ago
Given that (0,7) is on the graph of f(x), find the corresponding point for the function f(x + 2).
Ksju [112]
0 I think if youre saying 0(7+2)
4 0
3 years ago
Pls someone help me with these 2 questions and explain.. ​
garik1379 [7]

question 6,

Answer : 35.7 degree from north

Step-by-step explanation:

Bearing is angle w.r.t the north.

To calculate this angle we need the angle of the triangle in the diagram.

We know two sides of the triangle the base (18) and Perpendicular(25).

Tan(x) = 25/18

arctan(25/18) = 54.24 deg

Subtracting from 90 to get angle w.r.t north 90-54.24 = 35.7

Question 7,

Solution: 33.12

Explaination

calculate the length of the straw within the glass.

It makes a right angle  triangle with the glass, where the length is the hypotenuse.

the base is 9 (radius *2 = 4.5*2)

using Cos(x) = base / hypotenuse

cos(72) = 9 /Hypotenuse

Hypotenuse = 9/cos(72)

Hypotenuse  = 29.12

total length is hypotenuse + the length protruding out(4)

29.12 + 4  = 33.12

6 0
4 years ago
The following time series shows the sales of a clothing store over a 10-week period. Compute the mean square error (MSE) for a 4
Alenkasestr [34]

Answer:

7.67

Step-by-step explanation:

Given the data :

Week_sales_Forecast ___|error|_ |error|²

1 _____15

2 ____ 16

3 ____ 19

4 ____ 18

5 ____ 19 ____ 17 _______ 2____4

6 ____ 20 ___ 18 ________2____4

7 ____ 19 ____19 ________0____0

8 ___ 22 ____ 19 ________3____9

9 ___ 15 ____ 20 ________5___ 25

10 __ 21 _____19 ________ 2 ___ 4

Mean squared error :

(4 + 4 + 0 + 9 + 25 + 4) / 6

= 46 / 6

= 7.666

= 7.67

8 0
3 years ago
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