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creativ13 [48]
3 years ago
5

Is x=15 a function?​

Mathematics
2 answers:
Mama L [17]3 years ago
7 0

Answer:

yes i do believe so

Step-by-step explanation:

ioda3 years ago
4 0

Answer:So x=15 does not define a function. Another way of describing the condition above is that x=15 fails the vertical line test - the requirement that any vertical line intersects the graph in at most one point. This fails when x=15 because a vertical line at that point intersects the graph at infinitely many points.

Step-by-step explanation:

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y=20-3x

Step-by-step explanation:

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2 years ago
A student said that since -9 is less than 4, then |-9| is less than |4|. Is the student correct? Explain why or why not.
IRISSAK [1]
No, that is not true. The absolute value is the distance a number is from zero. The distance of -9 to 0 is 9. 9 is not less than 4.
4 0
3 years ago
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Please help I don’t understand
JulsSmile [24]

Answer:

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2 years ago
Certain tubes manufactured by a company have a mean lifetime of 800 hours and a standard deviation of 60 hours. Find the probabi
Anna71 [15]

Answer:

Step-by-step explanation:

given that certain tubes manufactured by a company have a mean lifetime of 800 hours and a standard deviation of 60 hours.

Sample size n =16

Std error of sample mean = \frac{\sigma}{\sqrt{n} } \\= 15

x bar follows N(800, 15)

the probability that a random sample of 16 tubes taken from the group will have a mean lifetime

(a) between 790 and 810 hours,

=P(790

(b) less than 785 hours

=P(X

, (c) more than 820 hours,

=P(X>820)\\=p(Z>1.333)\\= 0.0913

(d) between 770 and 830 hours

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2 years ago
Bus going at 30 mph for 7 hours
Sergeu [11.5K]
Well, not specific. But after 7 hour the bus will be 210mi away
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3 years ago
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