Does the point (273, 2) lie on the circle that is centered at the origin and contains the point (0, -4)? Explain?
1 answer:
Answer:
No, the point (273, 2) does not lie on the circle that is centered at the origin and contains the point (0, -4)
Step-by-step explanation:
The circle centered at the origin that contains the point (0,-4) has equation:
If the point (273,2) lies on this circle , then it must satisfy this equation:
Since
The point does not lie on this circle.
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Answer:
30 workers are required.
Step-by-step explanation:
If the site measured 30 acres and was completed in 10 days, then it can be said that on average were made.
Then, 24 workers completed 3 acres / day.
Then,
8 workers can complete 1 acre per day
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Finally, 30 workers are required.
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For the given triangle, x = 8.6 cm.
Step-by-step explanation:
Step 1:
In the triangle, the given angle is 35°, the hypotenuse side's length is 15 cm. Assume the opposite side's length is x cm. To determine the opposite side's length, we determine the sin of the angle. To calculate the sin of an angle, we divide the opposite side's length by the hypotenuse's length.
Step 2:
The opposite side's length = x cm.
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So x of the given triangle measures 8.6025 cm, rounding this off, we get 8.6 cm.