Answer:
70° is your measurement for ∠t.
Step-by-step explanation:
Note that a straight line has an angle of 180°
It is given to us that ∠r and ∠t = 180°, and that m∠r = 110°
Plug in 110 for ∠r
110 + ∠t = 180
Isolate ∠t. Note the equal sign, what you do to one side, you do to the other. Subtract 110 from both sides
110 (-110) + ∠t = 180 (-110)
∠t = 180 - 110
∠t = 70
70° is your measurement for ∠t.
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Well, I'm assuming you haven't had your question answered yet in these 58 minutes. I'm not 100% sure but I would think that you would do the reverse of the equation to find the area of a circle to find the radius of the pizza cutter. So you would find the radius using the equation A=

r

to figure out the RADIUS. THEN, you would plug in the radius into the equation C=


to figure out the circumference. Next, you would multiply the circumference by 4. This would give you the diameter of the pizza. Finally, you would plug in the diameter of the pizza into this equation: A=


to find the area of the pizza. I am pretty sure this would work and there's probably an easier way that I don't know about. Assuming you get this in time, good luck! :)
Answer:
Option (a).
Step-by-step explanation:
It is given that 3n is an odd number.
We need to find an even number from the given options.
Even numbers: Which are divisible by 2.
Odd numbers: Which are not divisible by 2.
We need know that the numbers are alternatively even and odd.
If we add or subtract 1 from an odd number, we always get an even number.
If we add or subtract 2 from an odd number, we always get an odd number.
3n is an odd number. So,
3n-1 is an odd number.
3n+2 is an even number.
3n+2 is an even number.
3n+2n is an even number because 2n is an even number and sum of two even numbers in always an even number.
Therefore, the correct option is (a).