At heart we're being asked for a line through two points,

In general the line through (a,b) and (c,d) is

Check that you understand why both (a,b) and (c,d) are on this line.
Here our indepedent variable, instead of x, is T, temperature. Our dependent variable is v, velocity. Substituting,





That's our answer; let's check it.
When T=40, v = (5/9)40 + (2995/9) = 355 good
When T=49, v= (5/9)49 + (2995/9) = 360 good
Answer: the first one is exponential and the second one is function
<h2>
Answer: C 375 cm²</h2>
Step by step explanation: The last answer i wrote was wrong, so i retook the quiz and got 100% and this was right.
There are 11 letters in total.
T & B
T = 1/11
B = 2/11
The total probability is 3/11.