15/100
45/x
cross multiply to get 15x = 4500
x = 300 minutes. 300 + 45 = 345 minutes in total.
Answer:
Don't worry! This is not that hard! You got this! You can use this for checking :)
Plus we have to use x-y and use the numbers given for each question
15. x-y if x=6 and x=-3
6-(-3) negative plus negative equals positive
6+3= 9
16. x= -7 x=1
-7-1= -8
17. x=-2 y=-6
-2-(-6) negative plus negative equals positive
-2+6= 4
18. x=9 y=11
9-11= -2
19. x=-1 y=-1
-1-(-1)
-1+2= 1
20. x=-5 y=5
-5-5= -10
21. The high temp. is 6 and the low temp. is -3 It sasking for the differnece between the two.
6-(-3)
6+3=9
The difference between the high temp. and low temp. is 9 degrees Fahrenheit
22. This question is a little tricky but don't worry!
From -7 to 7. To reach -7 to 0, that is 7 degrees. To reach 7 from 0, that is also 7 degrees. So you add 7 and 7!
7+7= 14
The temperature increased 14 degrees Fahrenheit.
Hope this helps! Good luck on your quiz and I hope you pass :)
Answer:
4000
Step-by-step explanation:
20 to the power of 3 is 8000 and 8000/2 is 4000
Answer:
D. Linear model
Step-by-step explanation:
According to the question the various R square values are mentioned below:
Linear 0.997
Quadratic 0.776
Power regression 0.788
Exponential 0.834
The r- square is a measure of statistics that represents the data to be fitted on the line of regression. The other name is the coefficient of determination also if is 100% so it represents the perfect model
As if we compared all R square values so the highest R sqaure is near to one i.e. linear
Therefore this represents the linear model
A. 3.20/7 = $0.46 per stamp
B. 3.20/8 = $0.40 per stamp
C. 4.10/10 = $0.41 per stamp
D. 4.80/16 = $0.30 per stamp
Solution: A is worth the most
