Answer:
x = 24
Step-by-step explanation:
Here, The Right angled triangle is given
So, The sum of angles of right angled triangle is 180
Now,
2x + 42 + 90 = 180
2x + 132 = 180
2x = 180 - 132
2x = 48
x = 48/2
x = 24
<h3>
<em><u>FOR</u></em><em><u> </u></em><em><u>VERIFICATION ONLY</u></em><em><u>:</u></em></h3>
2x + 42 + 90 = 180
2(24) + 42 + 90 = 180
48 + 42 + 90 = 180
180 = 180
Hence, L.H.S = R.H.S
-TheUnknownScientist
Http://www.squiglysplayhouse.com/BrainTeasers/bt.php?id=119
just swap grain with corn
The approximations of the mean and the standard deviation are 233.3 and 229.82, respectively
<h3>How to determine the mean?</h3>
The table of values is given as:
Savings Lower Limit Upper Limit Frequency
0-199 0 199 345
200-399 200 399 97
400-599 400 599 52
600-799 600 799 21
800-999 800 999 9
1000-1199 1000 1199 8
1200-1399 1200 1399 3
Rewrite the table to include the class midpoint and the frequency
x f
99.5 345
299.5 97
499.5 52
699.5 21
899.5 9
1099.5 8
1299.5 3
The mean is calculated as:
So, we have:
Evaluate
Approximate
Hence, the approximation of the mean is 233.3
<h3>How to determine the standard deviation?</h3>
The standard deviation is calculated as:
So, we have:
Evaluate
Hence, the approximation of the standard deviation is 229.82
Read more about mean and standard deviation at:
brainly.com/question/475676
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Answer:
3
Step-by-step explanation:
Answer C
6 triangles around. 1/2bh=. 1/2 (15)(12)(6) triangles = 540
Bottom base formula 1/2 a p
1/2 (7.5 sq rt of 3)(15)(6)= 584.56
1,124.56
1,125