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ratelena [41]
3 years ago
15

Find the area. Help me please!

Mathematics
1 answer:
Jobisdone [24]3 years ago
5 0

Answer:

16 cm^2

Step-by-step explanation:

Formula = 1/2 * base * height

1/2 * 8 * 4 = 16

16 cm^2

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How many different rays can be formed from five collinear points?
spayn [35]

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I believe that its infinitely

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A particular project can be completed by six people working eight hours a day for twenty days. To speed up completion of the pro
andrew-mc [135]

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10

Step-by-step explanation:

10 because you have to do the first problem first. 6 people × 8 hours = the total of 48 then times the days (20) and get the answer of 960. Then what you do is 960 and divide it by 12 and get 80 then divide that by 8 getting the answer of 10

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3 years ago
23b=161 show work and step by step please
dalvyx [7]
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7 0
3 years ago
Which is an ordered pair on the line 2.5,14 2.25,12 1.25,5 1.5,9
Savatey [412]
I would think that all but one point would be on the line.  One way to approach this problem is to find the equation of the line based upon any two points chosen at random, and then determine whether or not the other points satisfy this equation.  Next time, would you please enclose the coordinates of each point inside parentheses:  (2.5,14), (2.25,12), and so on, to avoid confusion.
                                                               14-12
slope of line thru 1st 2 points is   m = ----------------  =  2/0.25 = 8
                                                              2.50-2.25

What is the eqn of the line:     y = mx + b becomes

                                               14 = (8)(2.5) + b; find b:

14-20 = b = -6.  Then,   y = 8x - 6.

Now determine whether (12,1.25) lies on this line.  

Is 1.25 = 8(12) - 6?  Is 1.25 = 90?  No.  So, unless I've made arithmetic mistakes, (1.25, 5) does not lie on the line thru (2.5,14) and (2.25,12).

Why not work this problem out yourself using my approach as a guide? 



5 0
3 years ago
Can someone help me with this math homework please!
abruzzese [7]

Answfirst one

Step-by-step explanation:

hope it helps thank u

6 0
3 years ago
Read 2 more answers
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