Answer:a=1/5
B=2/15
Step-by-step explanation:
<h3>
Answer: C) 2.47 cm</h3>
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Explanation:
We have 81 cm^3 of clay. Divide this among the 20 students and each gets 81/20 = 4.05 cm^3 of clay
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The volume of a cone is
V = (1/3)*pi*r^2*h
Solving for h gets us
3V = pi*r^2*h
(3V)/(pi*r^2) = h
h = (3V)/(pi*r^2)
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The diameter is 2.5 cm which cuts in half to 1.25 cm, so this is the radius.
We'll plug this radius in, along with V = 4.05 and pi = 3.14
h = (3V)/(pi*r^2)
h = (3*4.05)/(3.14*(1.25)^2)
h = 2.4764
This value is approximate. Rounding down to the nearest hundredth gets us 2.47
We round down because rounding up to 2.48 will lead to a volume larger than 4.05
The student's score was higher than 54% of the students who took the test. Then the correct option is C.
<h3>What is the percentage?</h3>
The quantity of anything is stated as though it were a fraction of a hundred.
A student scored in the 54th percentile on her Calculus exam.
Then the student's score mean in relation to those of the other test takers will be
Let the student got the lowest scored in calculus.
Then the student's score was higher than 54% of the students who took the test.
Then the correct option is C.
More about the percentage link is given below.
brainly.com/question/8011401
#SPJ1
Answer:
I believe the first one is A
Step-by-step explanation:
