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2 answers:
Answer:
21) Angle A = 44 degrees
22) Angle A = 23 degrees
Step-by-step explanation:
The angles inside of every triangle always add up to 180 degrees, you can use this trigonometric identity to solve for x values:
Problem 21)
X + 59 + X + 51 + 84 = 180
2x + 194 = 180
2x = -14
x = -7
now solve for angle A:
Angle A = x + 51 = -7 + 51 = 44 degrees
Problem 22)
The square symbol inside a triangle denotes a 90 degree angle. Setting the angles equal to 180 degrees, you can find angle A again.
90 + x + 37 + x + 67 = 180
2x + 194 = 180
2x = -14
x = -7
now solve for angle A:
Angle A = -14 + 37 = 23 degrees
Answer:
The best way to measure an angle is to use a protractor. To do this, you'll start by lining up one ray along the 0-degree line on the protractor. Then, line up the vertex with the midpoint of the protractor. Follow the second ray to determine the angle's measurement to the nearest degree.
Step-by-step explanation:
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Answer: c
Step-by-step explanation: answer is C
Answer:
x = - 2
Step-by-step explanation:
(f + g)(x) = f(x) + g(x)
f(x) + g(x) = x² - 2x + 6x + 4 = x² + 4x + 4
Equating to zero, that is
x² + 4x + 4 = 0 ← left side is a perfect square
(x + 2)² = 0, thus
x + 2 = 0 ⇒ x = - 2
The points A and B and the center O of the circle form a right angle and AO = radius.
Answer:
so just move the corners out by 2 from the a i think
Step-by-step explanation:
