Answer:
-4
Step-by-step explanation:
(2^2)3 - (10 - 6) ^2 x 4 - 5 =
(4)3 - (4)^2 x 1 =
12 - 16 x 1 =
- 4 x 1 = -4
9514 1404 393
Answer:
5. 88.0°
6. 13.0°
7. 52.4°
8. 117.8°
Step-by-step explanation:
For angle A between sides b and c, the law of cosines formula can be solved to find the angle as ...
A = arccos((b² +c² -a²)/(2bc))
When calculations are repetitive, I find a spreadsheet useful. It doesn't mind doing the same thing over and over, and it usually makes fewer mistakes.
Here, the side opposite x° is put in column 'a', so angle A is the value of x. The order of the other two sides is irrelevant.
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<em>Additional comment</em>
The spreadsheet ACOS function returns the angle in radians. The DEGREES function must be used to convert it to degrees. The formula for the first problem is shown here:
=degrees(ACOS((C3^2+D3^2-B3^2)/(2*C3*D3)))
As you can probably tell from the formula, side 'a' is listed in column B of the spreadsheet.
The spreadsheet rounds the results. This means the angle total is sometimes 179.9 and sometimes 180.1 when we expect the sum of angles to be 180.0.
The midpoint of the segment with endpoints (-3,6) and (3, 0) is (0, 3)
<h3>Midpoint of a line </h3>
From the question, we are to determine the midpoint of the segment with the given endpoints
The given endpoints are
(-3,6) and (3, 0)
Given a line with endpoints (x₁, y₁) and (x₂, y₂), then the midpoint of the line is
((x₁+x₂)/2, (y₁+y₂)/2)
Thus,
The midpoint of the line with the endpoints (-3,6) and (3, 0) is
((-3+3)/2, (6+0/2)
= (0/2, 6/2)
= (0, 3)
Hence, the midpoint of the segment with endpoints (-3,6) and (3, 0) is (0, 3)
Learn more on Midpoint of a line here: brainly.com/question/18315903
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Answer:
3
Step-by-step explanation:
due to the fact I really don't know