Convenience. She just asked whoever she saw.
Simple random sampling. There was no sort of grouping or anything involved, and they tell you random numbers were used.
121 of 162 said yes, so the experimental probability is 121/162
4055 * 121/162 = 3028.73... = 3029 people.
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7x^2-63x+3x-27=0
Simplify.
7x^2-60x-27=0
To find value of x, 7x+3=0
x-9=0
x1=-3/7
x2=9
Substitute back in equation to find the answer either x1 or x2
(7x)^2 simplified is 49x^2 or 49 and x raised to the second power, since 7•7 is 49, and we dont know the value of x, your answer is 49x^2
Answer:
left shift by 2 units
Step-by-step explanation:
yep, that's it
