The system is
i)
ii)
The solutions to this system, are all points (x, y) for which BOTH these 2 inequalities hold.
Check the points separately:
(5, 1)
i)
True
ii)
Not True
(0, 0)
i)
True
ii)
True
(-2, -3)
i)
True
ii)
True
(2, 5)
i)
Not True
ii)
Not True
Answer: (0, 0) and (-2, -3)
Remember you can do anything to an equiaotn aslong as you do it to both sides
try to isolae the variable then find 1 of it
50=7x-6
add 6 to both sides
56=7x
divide both sides by 7
x=8
Answer:
8/13
Step-by-step explanation:
<em>Step 1 : Write all the data</em>
Total number of students = 26
Number of girls in class = 10
Number of boys in class = 26-10 = 16
<em>Step 2 : Find the probability</em>
Probability of pulling out a boy's name = <u>number of boys in class</u>
Total number of students in class
= 16/26
<em>Simplify :</em>
16/26 = 8/13
!!
Answer:
C
Step-by-step explanation:
Given
(- 2x - 3) - (3x² - 8x + 9) ← distribute parenthesis
= - 2x - 3 - 3x² + 8x - 9 ← collect like terms
= - 3x² + 6x - 12 → C
Answer:
62.5
Step-by-step explanation:
Data provided in the question:
Actual demand = 59
Previous forecast = 64
Alpha = 0.3
Now,
The forecast for the next period be using simple exponential smoothing will be given as
= [ Alpha × Actual demand ] + [ (1 - Alpha) × Previous forecast ]
= 0.3 × 59 + [ ( 1 - 0.3 ) × 64 ]
= 17.7 + 44.8
= 62.5
