The correct answer should be D
The two equations graphs intersect and the points where they are touching are belonging to both graphs therefore solutions for both equations.
(2) points (x,y) are
(-1,0) (-1)^2. +0^2=1; 1=1 ✔️
0=-1+1; 0=0✔️
(0, 1). (0)^2. +1^2=1; 1=1 ✔️
1=0+1; 1=1 ✔️
Answer:
No
Step-by-step explanation:
Neither 4 or 7 is a solution to both equations
Answer:
8
Step-by-step explanation:
13 - 0.75 (12) + 8 (0.5)
13 - 0.75 (12) + 4
13 - 9 + 4
4 + 4
8
Answer:
Step-by-step explanation:
Given that a statistics student would like to estimate the average age of students at her college.
Population std dev =2.5years
For 99% , Z critical = ±2.59
Margin of error = 
Simplify to get
n = 167.70
n=168
She must survey 168 people
