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FinnZ [79.3K]
3 years ago
10

I need help with this geometry math assignment I been struggling and I need help on it very fast and it is due today so please h

elp me out I will mark you Brainly and I’m stress and worry.Also please help me I need the answer I try my best

Mathematics
1 answer:
photoshop1234 [79]3 years ago
4 0

Answer:

12a. (-6, -6)

12b. 17

13a. y = \frac{-1}{2} x + \frac{3}{2}

13b. 2

Step-by-step explanation:

12a. Using the midpoint formula:

(\frac{-9-3}{2} ,\frac{2-14}{2} ) = (\frac{-12}{2} , \frac{-12}{2}) = (-6, -6)

12b. Using the Distance formula:

d = \sqrt{(3 - (-9))^{2} +( 14 - 2)^{2} } = \sqrt{(12)^{2}+(12)^{2}  } = \sqrt{144 + 144} = \sqrt{288}

= 12\sqrt{2} or 17

13a. x + 2y = 3

2y = 3 - x

y = \frac{-1}{2} x + \frac{3}{2}

13b. The perpendicular slope is 2

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KiRa [710]

Answer:

(3x + 2)(x-4)

Step-by-step explanation:

3x² - 10x - 8 = 0

(splitting the middle term)

3x² -12x + 2x -8 = 0

3x(x-4) + 2(x-4) = 0

(3x + 2)(x-4) = 0

(3x + 2)(x-4) is the correct answer (option a)

3 0
3 years ago
Read 2 more answers
The Wind Mountain excavation site in New Mexico is an important archaeological location of the ancient Native American Anasazi c
timurjin [86]

Answer:

a) 28

b)

Class Limits  Class Boundaries   Midpoint    f      Rf         Cf

10 - 37            9.5-37.5                   23.5            7     0.096     7      

38 - 65           37.5-65.5                 51.5           25    0.342     32    

66 - 93           65.5-93.5                 79.5          26    0.356     58    

94 -  121        93.5-121.5                   107.5         9     0.123       67    

122 - 149      121.5-149.5                  135.5         5      0.068     72  

150 - 177       149.5-177.5                  163.5        0         0.0      72    

178 - 205       177.5-20.5                  191.5         1       0.014      73  

Total                                                                  73          1.0    

c)

The histogram is in attached file.

Step-by-step explanation:

a)

The width of class interval=range/desired number of classes

The width of class interval=(maximum-minimum)/7

The width of class interval=(200-10)/7

The width of class interval=190/7

The width of class interval=27.14=28 (rounded to next whole number)

Part(b) and part (c) is explained in attached word document.

Download docx
5 0
3 years ago
An architect built a scale model of a sports stadium using a scale in which 2 inches represents 30 feet. The height of the sport
bija089 [108]
The height of the model in inches would be 6. if you multiply 30 until it reaches 180 you will have 6.
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What is the mean median and mode for 50, 55,42,38,163,55,61​
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Answer:

Mean: 67.7 (rounded to the nearest tenth)

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To find the the mean is to take all the numbers, all them together and divide by how many numbers there is. 50+55+42+38+163+55+61= 564 then divided by 6 is 67.7

to find the median is to put all the numbers in order, (I prefer to go increasing order) and then find the middle number. If there is no  middle number you take the two numbers around it and subtract them from one n another.

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Hope I helped!

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4 years ago
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Zina [86]

Answer:

2n - 35 = 5 \\ 2n = 5 + 35 \\ 2n = 40 \\ n = 40 \div 2 \\ n = 20

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3 years ago
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