Nacirema

Hi, have you tried to plot it out yet? I have made a graph here:

Hello. I shall allow someone else to solve the question 62. I am unable to solve it.

63) We are given a right triangle prism with an area of 450. L=15, and B=5.

This means the (5*15*(AB))/2 = 450 so 900 = 75(AB), so AB = 900/75 = 12. 

Notice how we are given that there is a right triangle. This means that we can apply the Pythagorean Theorem. a²+b²=c². a = 5, b = 12. If you know the basic Pythagorean Triples, then you will remember the (5, 12, 13) one. 

This means that our missing side is 13.

Sorry, Melody. I know this is a slightly hard problem, at least for me. I looked over your working to comprehend it, and it looks a bit like what I had done. My answer had only a slight arithmetic error, and hence the difference.

However, both of our answers appear to be wrong! Here is the answer I recieved from my source: 

There are 10 options for the numeric value of the two cards in the pair. Once we selected it, there are C(5,2)=10 ways to pick which two suits the cards in the pair will come from. There are then C(9,3) = 84 ways to choose the numbers on the final three cards, and 5 choices for the suit for each card, giving us a total of 10*10*84*5³ = 1,050,000 ways.

..............

Hello. This is a difficult mixture problem. The following link directs you to a SIMILAR problem. I how it offers a general idea:

https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.researchgate.net/post/Can_someone_help_me_with_a_conversion_dilution_calculation&ved=2ahUKEwjSoa6OlczrAhUkYTUKHXTQB2gQFjAAegQIAhAB&usg=AOvVaw1JZ3RHX3IkseHPt9jiKcLk

I recognize this problem from a pretest I took last week in school. I would recommend that this question is not answered.

Yes, so I believe that it is b using Electric Pavlov's reasoning.

@pocketthepenguin has this been verified, or shall I give it a shot?

We are giving the equations:

2d-a

And 

b-2c

Now, we can plug in the values to get the following:

1. 2*-5 - 3

    -10-3

    -13

2. 1-2*-6

     1+12

     13

Hence, part 1 is -13 and part 2 is 13.

Could you please explain how you got there? I seem to be a little lost with your explanation. Did you use a graphing calculator or graph it out?