I believe it would be C) 7 1/q
The first step is to find out how question in total she is able to miss, while still passing.
We know that there are questions on the test and she must get % of the questions correct.
Let's calculate how many questions that is:
40 x 0.70
= 28.
<em>Subtract</em>
<em>40 - 28 </em>
<em>= 12.</em>
She is able to get 12 answers incorrect.
Now we must find out how many questions she got wrong when she got 40% of the first 15 correct.
If she got 40% correct; She got 60% incorrect.
Let's do the math:
<em>Multiply:</em>
<em>15 x 0.40</em>
<em>= 6</em>
<em>Subtract:</em>
<em>15 - 6 </em>
<em>= 9</em>
This means that she got 6 questions correct, and 9 questions incorrect.
With the total allotment of 12 incorrect answers allowed, she can only get 3 more questions wrong.
Now we must find the percentage of the remaining 25 questions she can get wrong.
She can only get 3 wrong and she must get 22 correct.
<em />
<em>Multiply:</em>
<em>22 x 4 </em>
<em>= 88.</em>
This means that she has to get 88% of the remaining 25 questions correct.
<em />
Hey!
The formula for finding volume of a cylinder is: π · r² · h
Now multiply
Your answer is C)288π units³
Good luck and hope this helps! :)
If you get confused by logarithms, here's an easier way to think about this problem: What power of 2 equals 128? Well, we know 2^3 = 8, then 2^4 must equal 16. Doubling every times, we get 2^5 = 32, 2^6 = 64 and 2^7 = 128. So, the value of log₂128 is 7.