Answer:
area = 21 feet^2
Step-by-step explanation:
Area of a triangle is 1/2(base*height)
1/2(6*7) = area
1/2(42) = area
area = 21 feet^2
9514 1404 393
Answer:
20°, 120°, 40°
Step-by-step explanation:
Let s represent the smallest angle. Then the largest is (100+s) and the third angle is (2s). The sum of angles in a triangle is 180 degrees, so we have ...
s + (100+s) +(2s) = 180
4s = 80 . . . . . . . . . . subtract 100
s = 20 . . . the smallest angle
100+s = 120 . . . the largest angle
2s = 40 . . . the third angle
The angle measures are 20°, 120°, and 40°.
Scores that are greater than 31 are significantly high.
Scores that are less than 11.4 are significantly low.
The test scores between 11.4 and 31 are not significantly low or significantly high.
<h3>How to Identify significance values?</h3>
We are given;
Standard deviation; s = 4.9
From the complete question, we are told to consider a value to be significantly low if its z score less than or equal to -2 or consider a value to be significantly high if its z score is greater than or equal to 2.
Thus;
2s = 2 * 4.9 = 9.8
Scores that are greater than 21.2 + 9.8 = 31 are significantly high.
Scores that are less than 21.2 - 9.8 = 11.4 are significantly low.
Thus, the test scores between 11.4 and 31 are not significantly low or significantly high.
Read more about significance values at; brainly.com/question/4621112
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Uhhh that doesn’t seem possible but then again i forgot simple math lol
