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Aleks04 [339]
4 years ago
13

Factor completely 49x2 − 81

Mathematics
2 answers:
nataly862011 [7]4 years ago
6 0
49x2 - 81
(7x - 9)(7x + 9)
slava [35]4 years ago
5 0

Answer:

(7x + 9)(7x -9)

Step-by-step explanation:

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writing carla has already written 10 pages of a novel she plans to write 15 additional pages per month until she is finished A.w
nika2105 [10]

Answer:

P = 5M + 10

Step-by-step explanation:

15 pages/month * M months + 10 pages = P pages

5 Months = 5*15 + 10 = 85 pages

7 0
3 years ago
Consider the age distribution in the United States in the year 2075 (as projected by the Census Bureau). Construct a cumulative
MrRissso [65]

Answer:

The cumulative frequency plot is also attached below.

Step-by-step explanation:

The data provided is as follows:

Age Group Frequency

   0 - 9             34.9

  10 - 19             35.7

20 - 29             36.8

30 - 39             38.1

40 - 49             37.8

50 - 59             37.8

60 - 69             34.5

70 - 79             27.2

80 - 89             18.8

90 - 99               7.7

100 - 109       1.7

Consider the Excel output attached.

The cumulative frequency are computed in the Excel sheet.

The cumulative frequency plot is also attached below.

From the cumulative frequency plot it can be seen that in the future most people will belong to a higher age group rather then the lower ones.

8 0
3 years ago
Which of the following rules represents the set of ordered pairs? {(2, 5), (3, 7), (5, 11),
Nana76 [90]

I think the answer is a.

6 0
3 years ago
Read 2 more answers
Quadrilateral ABCD is a square.<br> BC = 10<br> What is the length of AC?
aliya0001 [1]
All four sides of a square are equal.

So if BC is 10, then AC is also 10.
4 0
3 years ago
Read 2 more answers
2. Rob Incorrectly almplified the radioal expresalon. Find and correct his error.
Leona [35]

Answer:

I can't even find the rational expression

Step-by-step explanation:

Did you forget something?

3 0
3 years ago
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