T=5.5 hope this helped:)
brainliest please:)
Answer:
C) 154
Step-by-step explanation:
This is the formula A=πr^2 so, 3.14*7^2=153.86 so glad to help you this is my 100th math q!!!
Answer:
The correct answer is the third option: y = 4x - 20
Step-by-step explanation:
To solve this problem, we should first find two points that are located along our line of best fit. We can see that the points (25,80) and (15, 40) are both located along the line. Next, we can calculate the slope using these two points.
slope = rise/run = Δy/Δx = (80-40)/(25-15) = 40/10 = 4
Therefore, the slope of the line of best fit is 4.
To find the y intercept, we can use our equation for slope and plug in one of our points.
y = mx + b
y = 4x + b
40 = 4(15) + b
40 = 60 + b
b = -20
Therefore, the y intercept is -20.
If we put both our slope and y intercept into one equation, we get:
y = mx + b
y = 4x - 20
The correct answer is the third option.
Here are some more questions that involve scatter plots and the line of best fit:
brainly.com/question/11799545
brainly.com/question/21101334
Step-by-step explanation:
72÷9= 8, so the boat was only doing 8mph going upstream (against the current) the return trip downstream only took 4 hours. 72÷18=4 meaning the boat was traveling at 18mph downstream (no current) there is a 10mph difference between upstream and downstream therefore the current had to be running at 10 mph. so the speed of the tug boat is 8mph without a current and the current is running at 10mph.
Answer:
what
Step-by-step explanation:
