Answer:
Step-by-step explanation:
e = 300-10(30)
e = 300 - 300
e = 0
Answer: the first answer is 72
Step-by-step explanations
24x3=72
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
I think 4 divided by 8/9 - 1/2 = 4
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