Answer:
A. XY
Step-by-step explanation:
A chord has both ends on the circle. Point X is not on the circle so segment XY is not a chord.
Answer:
Input:
x/x + 1 - 1/x - 1 + 2×x/x^2 - 1
Result:
1/x
25/28
is in it's lowest form, as it cannot be reduced anymore.
25/28 = 0.8928571
hope this helps
Answer:
51715x/19x
Step-by-step explanation:
Answer:
Angle STR = 78°
Step-by-step explanation:
So, since line QS is a straight line, we know that it's 180°. We also know that angles QTR and STR both add up to 180°. That gives us an equation:
20x + 12 + 10x + 33 = 180
Combine like terms
30x + 45 = 180
Subtract 45 from both sides
30x = 135
Divide both sides by 30
x = 4.5
Now we know the value of x. We just need to plug it into angle STR's given value:
10(4.5) + 33 = angle STR
45 + 33 = angle STR
78° = angle STR
