When you multiply/divide by a negative number while solving the inequality, you reverse the symbol.
A.) 4(5 - y) ≥ 80 To solve this, isolate/get the variable "y" by itself in the inequality. Divide 4 on both sides
5 - y ≥ 20 Subtract 5 on both sides
5 - 5 - y ≥ 20 - 5
-y ≥ 15 Divide -1 on both sides to get "y" by itself
Because you are dividing by a negative number, you need to reverse the sign
y ≤ -15
B.) 2(y - 3) ≥ 8 Isolate "y", divide 2 on both sides
y - 3 ≥ 4 Add 3 on both sides to get "y" by itself
y ≥ 7
C.) 3y - 4 > 1 Add 4 on both sides
3y > 1 Divide 3 on both sides to get "y" by itself
D.) Isolate "y", add 3/4 on both sides
6y > 1 Divide 6 on both sides to get "y" by itseld
Formula is B(base)h(height)
Base is length x width
So… 10(4)(3)
Volume is 120
Answer: A) 3.2 ft
<u>Step-by-step explanation:</u>
f(4) = -0.3(4)² + 2(4)
= -4.8 + 8
= 3.2
Answer:
x = 1.5
y = 0.5
Step-by-step explanation:
Answer:$1,060
Step-by-step explanation: if it charges $40 every mont after the the first 100 dollar charge that means in 1 year you with have payed 480 becuase 40*12= 480 then adding on another year with make it 40*24=960 also including the first $100 u pay you with have payed $1,060