Increase=5%of 4
=5÷100×4=0.2
So 4+0.2=4.2litres
4x-3+7x+1
Ones with a variable: 4 & 7
Only whole number: -3 & 1
The answer is option two: -3 and 1; 4x and 7x
I pretty sure the best answer would be f(x)=cbrt(27-x)
cbrt means cube root by the way.
Answer:
see explanation
Step-by-step explanation:
Given
x + ≤ - 3 or x - 3 > - 2
Solve the left and right inequalities separately, that is
x + ≤ - 3 ( isolate x by subtracting from both sides )
x ≤ - 3 - , that is
x ≤ - - , thus
x ≤ -
OR
x - 3 > - 2 ( isolate x by adding 3 to both sides )
x > 1
Solution is
x ≤ - or x > 1