2(x + 4) -3
2x + 8 (-3)
2x + -24
Answer:
the second option
Step-by-step explanation:
Answer:
4f
Step-by-step explanation: multiply the outside number (1) by the number inside the parenthesis (4) and then add the letter.
Answer: 7
10
Explanation: First step is to shorten the fractions by finding the GCD (Greatest Common Divisor) of both numerator and denominator. For this example, GCD is 10. Then devide numerator and denominator with GCD:
70÷10 - 7
100÷10 - 10
Based on the data, the most likely correlation coefficient would be -1.
The slope between 20 and 30 days is -1, and it represents the change in the surface area of the lake per day.
The data represents correlation, not causation.
Since the data would form a perfectly straight line through the points, the correlation coefficient would be -1 for a perfect decreasing fit.
To find the slope, find the change in the surface area between those days, the change in the days, and write it as surface area/days: 80-90=-10; 30-20=10; -10/10=-1
This is not causation because there could be lurking variables we cannot see.