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Verizon [17]
2 years ago
12

Last Year

Mathematics
1 answer:
Degger [83]2 years ago
5 0

Answer:

3

Step-by-step explanation:

The computation of the mean is shown below:

= Total sum ÷ number of observations

= (1 + 2 + 2 + 2 + 3 + 1 + 4 + 0 + 5 + 3 + 6 + 2) ÷ 12

= 31 ÷ 12

= 2.58

= 2.6

= 3

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What is the probability that the second digit of a lock combination is odd if the first digit is odd and the digits are not allo
Lelu [443]
That is a 4 out of 10 chance that the second number is odd, as well as the first.
6 0
3 years ago
What affect does "h" have on the parent function y = 1/x ?
pochemuha
If h moves the graph left or right, y= \frac{1}{x+h} (moves left)
y= \frac{1}{x-h} (moves right)

If a vertical stretch by a factor of |h|, then y =  \frac{h}{x}

If h moves the graph up or down, y= \frac{1}{x} +h (moves up)
y= \frac{1}{x} -h (moves down)

y= \frac{1}{-hx} and h = 1
7 0
3 years ago
a rock is thrown from the top of a tall building. the distance, in feet, between the rock and the ground x seconds after it is t
frez [133]

Answer:

1.5 seconds

Step-by-step explanation:

Since f(x) represents the distance from the ground to the rock (in feet), we just need to find the values of x for which f(x) = 340. Substituting f(x) = 340 into f(x) = -16x² - 4x + 382 gives us:

340 = -16x² - 4x + 382

0 = -16x² - 4x + 42 (Subtract 340 from both sides)

16x² + 4x - 42 = 0  (Multiply entire equation by -1, "flip" equation)

8x² + 2x - 21 = 0    (Divide entire equation by 2)

(4x + 7)(2x - 3) = 0  (Factor LHS)

4x + 7 = 0 or 2x - 3 = 0 (Zero Product Property)

4x = -7 or 2x = 3 (Subtract -7 and add 3 from/to both sides, respectively)

x = -\frac{7}{4} = -1.75 or  x =\frac{3}{2} = 1.5

x = -1.75 is an extraneous solution because in the context of the question, you can't have negative seconds so therefore, the final answer is 1.5 seconds.

Hope this helps!

3 0
2 years ago
How does a person use credit to make a
Black_prince [1.1K]

Answer:

makes a promise to pay at some point in the future

Step-by-step explanation:

Using credit means you borrow money to buy something, which is called a "loan", then you can buy the things you want, and you can pay it back later (with interest).

6 0
3 years ago
Indra completed 80% of her test questions. If there were 120 questions, how many questions she complete
kramer

Answer:

96 questions

Step-by-step explanation:

Given that:

Total number of questions = 120

Percentage questions completed = 80%

Number of questions completed =?

Number of questions completed = total number of questions * percentage questions completed

Number of questions completed = 120 * 0.8

Number of questions completed = 96

4 0
3 years ago
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