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Mkey [24]
3 years ago
15

Mary is x years old. what expression represents her age 12 years from now? 2 years ago?

Mathematics
1 answer:
Yuliya22 [10]3 years ago
6 0
Mary is x years old
when we write the expression for her age which represents 12 years from now, it means we have to add 12 years in the age of Mary, and she is x years old now
so the expression will be:
x+12
and the expression which represents her age two years ago from now when she is x years old is:
x-2
if we know the x, we can calculate easily her age for above two expressions.
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What is the midpoint of the vertical line segment (5,4) and (5,-5)
azamat

Answer:

(5,-0.5)

Step-by-step explanation:

You need to take the avarage of each number. That will get you to the midpoint.

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3 years ago
Marsha sees an airplane flying overhead. The spot on the ground that is directly under the plane is 3,600 feet from Marsha's hou
Rudiy27

The elevation of the plane is 3600 ft

Let

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From the triangle, we have the trigonometric ratio

tanФ = h/D

<h3>Elevation of the plane</h3>

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h = DtanФ

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h = 3600 ft

So, the elevation of the plane is 3600 ft

Learn more about elevation of the plane here:

brainly.com/question/26380084

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2 years ago
Determine the graph that represents a function.
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3 0
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Parking at a large university can be extremely difficult at times. One particular university is trying to determine the location
Anna007 [38]

Answer:

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Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for population parameter implies that there is a (1 - <em>α</em>) probability that the true value of the parameter is included in the interval.

Or, the (1 - <em>α</em>)% confidence interval for the parameter implies that there is (1 - <em>α</em>)% confidence or certainty that the true parameter value is contained in the interval.

From the provided data the 95% confidence interval for the population mean parking time of students from within the various college on campus is:

CI = (9.1944, 11.738)

This 95% confidence interval implies that the true mean parking time of students from within the various college on campus is included in the interval (9.1944, 11.738) with a specific probability or confidence of 95%.

Thus, the phrase "95% confident" means that there is a 95% confidence that the true mean parking time of students from within the various college on campus is included in the interval (9.1944, 11.738).

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3 years ago
Graph a line with a slope of 3/4 that contains the point (2,-3).
arsen [322]

Answer:

Step-by-step explanation:

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6 0
3 years ago
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