Answer:
I think the closest to the correct answer is choice B:
![f^{-1} (x)=\frac{1}{x-1}](https://tex.z-dn.net/?f=f%5E%7B-1%7D%20%28x%29%3D%5Cfrac%7B1%7D%7Bx-1%7D)
Step-by-step explanation:
the accurate answer is: ![f^{-1} (x)=-\frac{1}{1-x}](https://tex.z-dn.net/?f=f%5E%7B-1%7D%20%28x%29%3D-%5Cfrac%7B1%7D%7B1-x%7D)
Answer:
angle A=72 degrees and angle B= 108 degrees
Step-by-step explanation:
1. the sum of the angles altogether must be 360 degrees
2. the picture shows that the two horizontal lines are the same and that the two vertical lines are the same
3. that means that 3y+27=5y-3
4. solve for y
5. 3y+27=5y-3
6. 27+3+3y=5y
7. 30+3y=5y
8. 30=5y-3y
9.30= 2y
10. 15=y
11. Then solve what each angle is by plugging in y
12. 3(15)+27 and 5(15)-3
13. Remember, the two should equal the same number
14. 72 degrees and 72 degrees
15. 72+72=144
16. The two horizontal lines equal 144 together which means because the whole figure equals 360 degrees, 360-144= the two vertical lines
17. 360-144=216
18. 216 equals the two vertical lines sum put together and since the two lines are equal, we cut 216 in half
19. 216/2= 108
20. each vertical line equals 108 and each horizontal line equals 72 degrees
21. Therefore angle A=72 degrees and angle B= 108 degrees
22. I know this was a lot of info. and I hope I helped you understand it!
The two numbers are -6 and 7
<em><u>Solution:</u></em>
Given that eight times a number plus five times another number is -13
The sum of two numbers is 1
To find: the two numbers
Let the two numbers be "a" and "b"
From given information,
Eight times a number plus five times another number = -13
eight times a number "a" + five times another number "b" = -13
8a + 5b = -13 ---- eqn 1
Also given that sum of two numbers is 1
sum of two numbers = 1
a + b = 1 ---- eqn 2
<em><u>Let us solve eqn 1 and eqn 2 to find values of "a" and "b"</u></em>
From eqn 2,
a = 1 - b ----- eqn 3
Substitute eqn 3 in eqn 1
8(1 - b) + 5b = -13
8 - 8b + 5b = -13
8 - 3b = -13
-3b = -13 - 8
-3b = -21
<h3>b = 7</h3>
Substitute b = 7 in eqn 3
a = 1 - 7
<h3>a = -6</h3>
Thus the two numbers are -6 and 7
Answer:
<em>y = </em>
<em> x - 2 </em>
Step-by-step explanation:
Slopes of perpendicular lines are opposite reciprocals.
If AB ⊥ CD , then
= - 1
y -
= m(x -
)
~~~~~~~~~~~
6x - y = 7 ⇔ y = 6x - 7
Slope of given line is 6
Slope of a perpendicular line is
( - 6, - 1 )
y + 1 =
(x + 6)
<em>y = </em>
<em> x - 2</em>
Answer:
0.761
Step-by-step explanation:
first you do 3 divided by 2.2 and get .733 which you round to .7
next you do 3 divided by 2.28 and get .76
last you do 3 divided by 2.283 and get .761