x + 7 = 2(3x - 4) Remove the brackets
x + 7 = 2*3x - 4*2
x + 7 = 6x - 8 Subtract 7 from both sides.
x + 7 - 7 = 6x - 8 - 7
x = 6x - 15 Subtract 6x from both sides
x - 6x = - 15
-5x = - 15 Divide by -5
-5x/-5 = -15/-5
x = 3
The 90% confidence interval is (70 - 4, 70 + 4). The margin of error is 4%.
Answer:
formal proof
Step-by-step explanation:
https://quizlet.com/230868297/geometry-u2-review-flash-cards/
Answer: 6.19
Step-by-step explanation: 106.25 divided by 17 is around 6.19.