Answer:
Since f(x) is a first order equation, it has only one zero
f(x) = -20*x +23*x -6
This means that
f(x) = (-20 + 23)*x -6
f(x) = (3)*x -6
If we mame the previous equation equal to zero ----->
(3)*x -6 = 0
x = 2
which means, the factorization is equal to
(x-2) = 0
f(x) = 3*(x-2)
Since PQ = QR = RS,
Let's set PQ equal to RS
2x + 3 = x + 10
Subtract x and 3 from both sides.
x = 7
PQ = 2x + 3 = 2(7) + 3 = 14 + 3 = 17
Since PQ = QR = RS,
QR = 17
Domain: (-∞, 2) ∪ (2, ∞)
Range: (-∞, -3) ∪ (-3, ∞)
For inverse, solve for y.
inverse:
Hope this helps!
Answer:
a. 18 ft
b 12 ft
c 44 inches
Step-by-step explanation:
We can use proportions to solve part a. Put the inches on the diagram on top and the feet in real life on the bottom
4 inches 24 inches
---------------- = --------------
3 ft x ft
Using cross products
4x = 3 *24
Divide each side by 4
4x/4 = 3* 24/4
x = 3 * 6
x = 18 ft
We can use proportions to solve part b. Put the inches on the diagram on top and the feet in real life on the bottom
b) 4 inches 16 inches
---------------- = --------------
3 ft x ft
Using cross products
4x = 3 *16
Divide each side by 4
4x/4 = 3* 16/4
x = 3 * 4
x = 12 ft
We can use proportions to solve part c. Put the inches on the diagram on top and the feet in real life on the bottom
b) 4 inches y inches
---------------- = --------------
3 ft 33 ft
Using cross products
4*33 = 3 *y
Divide each side by 3
4*33/3 = 3* y/3
4*11 =y
44 =y
44 inches =y