Answer:
x = 6
Step-by-step explanation:
Start off by reducing this equation: divide all three terms by 4. This yields:
x^2 - 12x + 36 = 0
This equation has the form (x - h)^2, the square of a binomial.
x^2 - 12x + 36 = 0, written as the square of the binomail x - 6, comes out to:
(x - 6)^2 = 0. This equation has a repeated real root: x = 6
48 25 39 64 70 65 52 43 21 22
46 28 39 76 63 39 42 55 29 30
A.
The frequency table should not have been set up in intervals.
B.
The recorded frequency for the interval 40 - 49 is incorrect.
C.
The recorded frequency for the interval 70 - 79 is incorrect.
D.
The frequency table is correct.
The recorded frequency for the interval 70 - 79 is incorrect, option C is correct.
Statistics is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data.
We can find the frequency for each interval by counting the number of data points that fall within each range.
There are no values between 10 and 19, so the frequency of 1 for the interval 10-19 is correct.
Similarly, there are no values between 50 and 59 or between 60 and 69, so the frequencies of 4 for the intervals 50-59 and 60-69 are correct.
when we count the values between 40 and 49 the range is 5 which is correct.
when we count the values between 70 and 79, we see that there are 3 value in this range, not 2 as listed in the frequency table.
Hence, the recorded frequency for the interval 70 - 79 is incorrect.
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It's C I took the quiz
if 0 < x ≤ 450, y = $60.
if 450 < x ; y = $60 + (x - 450min) × $0.35
Here x will represent the number of minutes.
so if 0 < x ≤ 450, y = $60.
And,
if 450 < x ; y = $60 + (x - 450min) × $0.35
where we use (x - 450) ×$0.35 since any minute after the 450 minute mark is considered an extra time.
Find out more information about the graph here: brainly.com/question/14375099?referrer=searchResults
Answer: if 0 < x ≤ 450, y = $60.
if 450 < x ; y = $60 + (x - 450min)*$0.35
Step-by-step explanation:
Here x will represent the number of minutes.
with $60 you have 450 minutes, and you must pay 60 regardless of how much minutes you use.
so if 0 < x ≤ 450, y = $60.
now, if you call for more than 450 minutes, you get an additional of $0.35 per minute, then we have:
if 450 < x ; y = $60 + (x - 450min)*$0.35
where we use (x - 450)*$0.35 because any minute after the 450 minute mark is considerated an additional time.
So our piecewise function is:
if 0 < x ≤ 450, y = $60.
if 450 < x ; y = $60 + (x - 450min)*$0.35
Answer:
rhombus
Step-by-step explanation: