Answer:
Step-by-step explanation:
There are two ways to do this.
1. You could make an accurate diagram and measure R. This works but the computer won't like it. However you will know if you are correct. An answer ± 2 degrees would tell you that you are likely correct.
2. The second way is to find <C. Similarity guarantees that <C and <R are equal. The adjacent side to angle C is the second longest line. The second longest line in PQR is the adjacent side of <R.
Naturally we will use the second method, but you ought to try the first method. It's cumbersome but it will teach you how to read the values of triangles to make clear the trig functions.
Tan(C) = opposite over adjacent
Tan(C) = 7 / 9
Tan(C) = .77777777...
<C = tan-1(0.7777777...)
<C = 37.87
<C = 37.9
A random sample of pickles in a jar has the following weights, in grams: 68, 54, 59, 70, 69, 65, 73, 59, 74, and 54. What is the
aivan3 [116]
All the weight of the pickles or the mean is
58.5
20 is 85% of the number 23.5294
Answer:
3
Step-by-step explanation:
Standard derivation is how much the data varies from the mean
class 2 has a lower derivation, the scores vary less from the mean, being closer
78+92=170
170/2=85
his current average is 85% so id go with C knowing that if his next quiz he got at least a 70, his average would be 80%