You can multiply by -30 to clear fractions.
.. 47 ≤ 10x +60
Now, subtract 60 and divide by 10
.. -13 ≤ 10x
.. -1.3 ≤ x
.. 47 ≤ 10x +60
Now, subtract 60 and divide by 10
.. -13 ≤ 10x
.. -1.3 ≤ x
Nicole usually scores between 89%
1 answer:
Answer:
B
Step-by-step explanation:
Nicole usually scores between 89% and 100% on her math quizzes.
On the quizzes she takes right after a track meet, she has about an 11% decrease in her score, so she will earn 100% - 11% = 89% of her usual score.
1. 89% of 89% is
2. 89% of 100% is
So, if Nicole had a track meet the day before a quiz, her score would be between 79% and 89%.
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Answer:
340 degrees
Step-by-step explanation:
So the key thing here is to notice that we are given the circumference which will allow us to find a value for the radius of the circle and hence the angle subtended by the arc (the central angle).
So the circumference of a circle = 2pi(r)
This means:
6 = 2pi(r)
Which means that
r = 6/2pi or r = 3/pi
Now we can use this value of r to find our angle in conjunction with the value of the arc length. So:
Arc length is defined by: length = θr
Where θ is our angle value.
So lets plug in:
Multiply by pi to get:
Divide by 3 to get that:
θ = 17pi/9
So if we convert that from radians to degrees we get 340 degrees.