Answer:
2x -12
Step-by-step explanation:
Multiply -3 times x and -3 times 4 to get -3x and -12. Then combine 5x -3x to get 2x - 12
Answer:
m∠C = 122°
Step-by-step explanation:
Opposite angles of a quadrilateral inscribed in a circle are supplementary. This means
m∠A + m∠C = 180°
m∠B + m∠D = 180°
To find angle C we need to find x, then subtract m∠A from 180°
x+20=3x
20=2x
x=10
Now we substitute 10 in for x
m∠A=2(10)+38
m∠A=20+38
m∠A=58°
Now we subtract this value from 180.
m∠C=180-58
m∠C=122°
Answer:
x=13
Step-by-step explanation:
one angle of triangle=85
parallel lines and vertical angles
the second angle is 82:
sum of angles of the triangle=180
x+85+82=180
x+167=180
x=180-167
x=13
Answer:
Both answer choices are irrational
Step-by-step explanation:
Irrational means the number cannot be over a fraction or repeating so they are both irrational
hopes this helps
