Answer:
f-1(x) = (x - 1)/ 5.
Step-by-step explanation:
Lete f(x) = y = 5x + 1
Now we find an expression for x in terms of y:
y = 5x + 1
5x = y - 1
x = (y - 1) / 5
So the inverse of th function = f-1(x) = (x - 1)/ 5 (answer).
Answer:
x=80 degrees
Step-by-step explanation:
We are given that
ABC is a right triangle
Therefore, angle B=90 degrees
Angle A=a+b=135 degrees
Angle C=c+d=55 degrees
Angle D=x
We have to find the value of x.
We know that
In quadrilateral
Sum of all angles of quadrilateral=360 degree
x=80 degrees
Answer:
28
Explanation:
area of the cloth on the table: 6*4= 24
area of the extra cloth: 4*1=4
4+24=28
Answer:
(f + g)(x) = – 3x^2 + 5x - 8
Step-by-step explanation:
(f + g)(x) = f(x) + g(x)
= 5x^2 + 9x – 4 + (– 8x^2 – 3x – 4)
= 5x^2 + 9x – 4 – 8x^2 – 3x – 4
Combine
= – 3x^2 + 5x - 8
Answer:
268.40
Step-by-step explanation:
We can write a ratio to solve
2.5 meters 22 meters
----------------- = --------------
30.5 dollars x dollars
Using cross products
2.5 * x = 30.5 * 22
2.5x =671
Divide each side by 2.5
2.5x / 2.5 = 671/2.5
x =268.4
