Answer:
They say that the sum of the two numbers (x and y) is 64, so we can write our first equation by adding them and setting that sum equal to 64:
x + y = 64
The question also tells us that their difference is 14. Similarly to before, we'll just subtract the two numbers and set that difference equal to 14:
x - y = 14
Now from here, you know how to continue with substitution to find the values for x and y. Just remember when you get a word problem to break it down and look for key words like sum, difference, or product, and from there you'll be able to build your system of equations.
Since line DB is perpendicular to line AC, then arc AB = arc BC
Thus, 14x - 3 = 7x + 18
Collecting like terms,
14x - 7x = 18 + 3
7x = 21
Dividing both sides by 7, we have
substituting x into the above equation,
Hence, angle the arc AC makes at the centre is 78 degrees.
Answer:
Bruh
Step-by-step explanation:
It’s is 1)
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First, you find the circumference of the full pizza.
C=d * pi
C=6pi
Then you divide it by two, because it is half of a pizza.
C=3pi
Therefore, the arc length of the crust of half a pizza is 3pi inches.
