Answer:
(a) and (b) are true
Step-by-step explanation:
a) is true.
b) is true. Replacing x with 8 in the equation y=1/4x-5 results in 2-5, or -3.
c) is false. See (a), above.
d) is false. Replacing x in the equation by 12 results in y = (1/4)(12) - 5, or -2.
Answer:
112
Step-by-step explanation:
Answer:
135 cent
Step-by-step explanation:
Given that:
Cost of electricity = 10cent / 1 kilowatt hour
TV consumption = 150watt per hour
Duration = 3 hours
Cost of operating for 30 days
Total energy usage per day: (150 watt/hr) * 3 hours = 450 watts = 450/1000 = 0.45kW
Total energy for 30 days = 0.45 * 30 = 13.5 Kilowatt
Cost per kilowatt = 10cent
13.5 kw = 13.5 * 10 cent = 135 cent
135 cent = $1.35
#8
24 • 24= 576 and 25 • 25= 625
76 • 76= 5,776 and 77 • 77= 5, 929
242 • 242= 58, 564 and 243 • 243= 59, 049√
766 • 766= 586, 756 and 767 • 767=588, 298
( by the way,
I'm squaring it because it's a square.)
#9
3x -5≥ 5x-25
-3x. -3x
-----------------
---> -5 ≥2x -25
+25. +25
---------------------
---->20≥2x
20/2 ≥ 2x/2
----->10≥x, the greatest 'x' can be is 10.
I can see the question but if you add a picture maybe i’ll understand it a little more
