2.25x + 2.65y > = 8 (thats greater then or equal)
Answer:
x= -2
Step-by-step explanation:
-0.2(25x+5)-5 = 4
We move all terms to the left:
-0.2(25x+5)-5-(4) = 0
We add all the numbers together, and all the variables
-0.2(25x+5)-9 = 0
We multiply parentheses
-5x-1-9 = 0
We add all the numbers together, and all the variables
-5x-10 = 0
We move all terms containing x to the left, all other terms to the right
-5x= 10
x= 10/-5
x= -2
According to the rule of BODMAS multiplication goes first.
B - brackets
O - operations
D - division
M - multiplication
A - addition
S - subtraction
to answer the question, 4 ^ x goes first. which equals 4x. the new equation would be:
4x + 3 = 18
now you have to move +3 over the equals sign which becomes negative (-):
4x = 18 - 3
4x = 15
next you have to get the x to be alone, move the 4 over the equals sign. 15 is now divided by 4:
x = 15/4
x = 3.75
1. A) 19 ; 2. B) 5,5 ; 3. D) 10
Answer:
A
Step-by-step explanation:
Since -8 < 0, we use the top equation which is x^2.
f(-8) = x^2
f(-8) = -8^2
f(-8) = 64