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Luba_88 [7]
3 years ago
8

A camera attached to a telescope photographs a stars image once every .045 seconds. How many complete images can the camera capt

ure in 3 seconds?
Mathematics
1 answer:
padilas [110]3 years ago
4 0
Writing and solving an equation of ratios would seem to be the best way to go.

0.045 sec       3 sec
------------- = ------------
1 image           x

Then 0.045x = 3, and x = 66 2/3 images, best rounded down to  66 images.

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Aurelio can choose between 3 pairs of pants and 4 shirts. How many different outcomes are in the sample space?
kherson [118]

Answer:

12

Step-by-step explanation:

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3 years ago
Question 1 What is the x-coordinate of the point in the standard (x, y) coordinate plane at which the lines y = 2x + 6 and y = 3
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Step-by-step explanation:

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3 0
2 years ago
Suppose researchers test 100 college students, whose ages range from 18 to 23. They also test 100 people at a nearby community c
prisoha [69]

Answer:

b. You would conclude that the differences in the average scores can be traced to differences in the working memory of the two groups.

Step-by-step explanation:

Though the average scores of the two sets could have lead to various conditions, but retentive ability deminishes with respect to an increase in age. With respect to the age of the elderly people involved, it is expected that some of them would not be able to retain information for a long period of time. Thus, their average score is 72%.

The college students' are younger, so it is expected that they should be able to retain more information. That ability is one of the reasons why their average score is 85%.

It can be concluded from the research that the differences in the average scores is probably due to the working memory of the two groups.

6 0
3 years ago
Find the perimeter of the figure below, in feet.
Sergeu [11.5K]

Answer:

add all and multiply it by 2

Step-by-step explanation:

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3 0
3 years ago
Solve each equation. Record your work and check your solution. <br> a. 5(x-2)+(-9)= -7(1-x)
Daniel [21]

The solution for equation is x = -6

<em><u>Solution:</u></em>

<em><u>Given equation is:</u></em>

5(x-2) + (-9) = -7(1-x)

We have to solve the equation

According to Bodmas rule, if an expression contains brackets ((), {}, []) we have to first solve or simplify the bracket followed by of (powers and roots etc.), then division, multiplication, addition and subtraction from left to right

Therefore, solve for brackets in given equation

5(x-2) + (-9) = -7(1-x)\\\\5x - 10 -9 = -7 + 7x

Solve for terms in left hand side of equation

5x - 19 = -7+7x

Move the variables to one side and constants to other side

7x -5x = -19+7\\\\2x = -12\\\\Divide\ both\ sides\ by\ 2\\\\x = -6

Thus the solution for equation is x = -6

8 0
3 years ago
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