Answer:
x=1
Step-by-step explanation:
4^x+3=7
subtract 3
4^x=4
x=1
Answer: y^16/x^9
Step-by-step explanation:
(x^-2(y^4))^3/x^3y^4
(x^-2y^4)^3/x^3 * y^4
x^-6y^12/x^3 * y^4
y^12/x^9 * y^4
y^16/x^9
Answer:
Step-by-step explanation:
Answer:
Option 3: mean increases by 3
Step-by-step explanation:
Current mean:
[50+76+78+2(79)+80+81+2(82)+83] ÷ 10
= 77
Without the outliers:
[76+78+2(79)+80+81+2(82)+83] ÷ 9
= 80
80 - 77 = 3 (increase)