Question

Can someone solve the equation attached?

Answer 1

Again! Haha.

Answer 2

I only have a couple more

Answer 3

Does this mean no?

Answer 4

It means I'll do what I can. But Help Monkeys also need some rest :-)

Answer 5

sorry, I hate to bug

Answer 6

Let's call the year 1920 the year t=0. This means that 1990 is the year t=70.

\[R(0)=46.4\]\[R(70)=44.3\]You have two points, (0, 46.4) and (70, 44.3). The first step is almost always finding slope. Find the slope using the equation
\[m=\frac{y_2-y_1}{x_2-x_1}\]
\[m=\frac{(46.4)-(44.3)}{(0)-(40)}\]\[m=-0.03\]

Then find the y-intercept. The y-intercept happens where the t-coordinate is 0, so b=46.4.
\[y=-0.03t+46.4\]
That's your linear function. Let me know if you need more on the next two parts.

Answer 7

ok

Answer 8

there was one part missing

in what year will the predicted record be 43.76 seconds?

Answer 9

c) 2008

Answer 10

You want to know what t is when R is 43.76.
\[43.76=-0.03t+46.4\]Solve for t.

Answer 11

Did anyone get what the seconds would be for 2003 and 2006?

Answer 12

Great, I was forgotten

Answer 13

2003: 43.91
2006: 43.82

Answer 14

so what did R(t)=?

Answer 15

Which suestion?

Answer 16

In the beginning of the series of questions, it ask R(t)=

Answer 17

before it asked for the predictions for the years