Answer:
A
Step-by-step explanation:
Just add every number and divide by 4. The question is basically asking for average/mean of his previous expenditure.
Move all terms to the left side and set equal to zero. Then set each factor to equal to zero giving you..
Answer:
Her solution is correct
Step-by-step explanation:
i just took the test
Answer:
x= 1 ±√21/3
x= 2.52753
x= - 0.527525
Step-by-step explanation:
-(-6) ±√-6² - 4 (3) (-4) / 2(3)
6±√36 -(-48) / 6
6±√84/6
6±2√21/6
6/6 ±2√21/6
1±√21/3
1+ √21/3 = 2.52753
1-√21/3= - 0.527525
