NEED HELP !! #12,13,14
2 answers:
12. The angle can be worked out by doing 128 (s) minus 45 (q). This gives an answer of 83 degrees.
13. Luis measured angle PTR and forgot to take away the 45 degrees from q
14. For this, there will be one camera at 90 degrees and one either side (45 and 135 degrees). Now, they can see 60 degrees total so let’s assume that that’s 30 either side. I have drawn the rest of how I’d work it out and attached an image
13. Luis measured angle PTR and forgot to take away the 45 degrees from q
14. For this, there will be one camera at 90 degrees and one either side (45 and 135 degrees). Now, they can see 60 degrees total so let’s assume that that’s 30 either side. I have drawn the rest of how I’d work it out and attached an image
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Answer:
89.84375
Step-by-step explanation:
Given that on a finance exam, 15 accounting majors had an average grade of 90. On the same exam, 7 marketing majors averaged 85, and 10 finance majors averaged 93.
To find weighted mean.
Here weights can be considered as number of majors in each subject
Weighted total = 1350+595+930 = 2875
Weighted mean = weighted total/total students