A physics test has 50 questions. The table below represents the amount of time in minutes that the students spent studying, and the number of total correct answers they
obtained in the test.
What is the correlation coefficient r of the table above?
F 0.75
45
60
75
G 0.48
90
Minutes, X
30
Correct answers, y 32
35
39
H 0.95
42
45
J 0.99

I don't know search on google it usually helps too!

Step-by-step explanation:

Sorry.

i think the answer is b.

step-by-step explanation:

not 100% sure though.

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!