20/100 = x/12
The 20/100 in the expression represents the 20%. The x in this scenario is the unknown amount in which the person will tip. The /12 is the cost of the original price. So, in order to find the value of x, you would need to cross multiply.
x = $2.40
The total cost would be $2.40 + $12.00 = $14.40
Answer: 0.4575
Step-by-step explanation:
.915/2
The area bounded by the curve ay = x² and the lines y = a and y = 4a is
<h3>How do you find the area bounded by a curve:</h3>
The area bounded by the curve can be determined by taking the integral of the curve such that:
From the given information:
Applying power rule
Taking the boundaries, we have:
Learn more about the area bounded by the curve here:
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Answer:
B. Reject the claim that the proportion of Americans that have seen a UFO is equal to 2 in a thousand when that proportion is actually 2 in a thousand
Step-by-step explanation:
The type I error is rejection of true null hypothesis.
In the given scenario our hypothesis are
Null hypothesis: The proportion of Americans that have seen a UFO is equal to 2 in a thousand.
Alternative hypothesis: The proportion of Americans that have seen a UFO is less than 2 in a thousand.
Type I error is the rejection of true null hypothesis so, in this case type I error is rejection of claim that the proportion of Americans that have seen a UFO is equal to 2 in a thousand when that proportion is actually 2 in a thousand.
Answer:
Mean=43 Median=44
Step-by-step explanation:
To find the median add up all the numbers and divide by however many numbers there are. To find the median look at the middle number if there is not one then add the two in the middle and divide by two. Hope this helps