Answer:
0.84, 84%
Step-by-step explanation:
First one: x>5
second one: x≥5
im pretty sure its right
Hope this helps love! :)
Step-by-step explanation:
(f + g)(x) = f(x) + g(x)
= (2x² - 9x) + (3x - 2) = 2x² - 6x - 2.
Therefore (f + g)(3) = 2(3)² - 6(3) - 2 = -2.
(f - g)(x) = f(x) - g(x)
= (2x² - 9x) - (3x - 2) = 2x² - 12x + 2.
Therefore (f - g)(-4) = 2(-4)² - 12(-4) + 2 = 82.
(g o f)(x)
= g(2x² - 9x) = 3(2x² - 9x) - 2 = 6x² - 27x -2.
(f o g)(x)
= f(3x - 2) = 2(3x - 2)² - 9(3x - 2) = 18x² - 51x + 26.
Answer:
The answer is D
Step-by-step explanation:
Answer:
Cost of one bush = 23
Cost of one tree = 47
Step-by-step explanation:
Let cost of bushes be x per piece
Let cost of trees be y per piece
First order : 13x + 4 y = 487 ----(1)
Second order : 6x + 2y = 232 -----(2)
multiply (1) by 6 => 78x + 24y = 2922 ----(3)
multiply (2) by 13 => 78x + 26y = 3016 -----(4)
(3) - (4) ==> -2y = -94
y = 47
Substitute y = 47 in (1) ==> 13x + 4(47) =487
13x = 487 - 188
13x = 299
x = 23
