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ElenaW [278]
3 years ago
5

8 over negative 4 ÷ negative 3 over 9.

Mathematics
2 answers:
gavmur [86]3 years ago
8 0
-8/4 divided by -3/9 equals 6
yaroslaw [1]3 years ago
3 0
I'd prefer you write this out symbolically instead of in words:

   8                       -3
------- divided by -----
   -4                        9

Why not reduce both fractions first?  We get    -2   divided by -1/3, which is
the same as -2 times -3.  Answer:   6


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X - (2x + 1) = 8 - (3x + 3)<br><br> Ayuda porfa
Marina86 [1]

Answer:

x = 3

Step-by-step explanation:

cambia los signos : x - 2x-1=8-3x-3

like terms : -x-1=5-3x

variable: -x+3x=5+1 --> 2x=6

dividir: x=3

4 0
3 years ago
A city survey of two neighborhoods asked residents whether they would
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Answer: 25

Step-by-step explanation:

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4 0
2 years ago
After a 12% increase the cost of a new cooker is £190.40
Gelneren [198K]

Answer:

22.848

Step-by-step explanation:

Calculate what 12% is out of 190.40

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5 0
3 years ago
In a certain city, there are about one million eligible voters. A simple random sample of size 10,000 was chosen to study the re
Ronch [10]

Answer:

REQUIRED TEST STATICS IS 35.19

Step-by-step explanation:

total size of sample = 10,000

                                     men                            women

voted                           2777                            3466

did not vote                  1444                             2313

By chi square test we can find the relationship between gender and participation in the election

<em>X^2 = \frac{ N(ad-bc)^2}{(a+c)(b+d)+(a+b)(c+d)}</em>

where

a represent  = 2777, b = 3466, c= 1444, d = 2313, N = 10000

Putting values to get chis square statics

<em>X^2 = \frac{ 10000(2777*2313-3466*1444)^2}{(2777+1444)(3466+2313)+(2777+3466)(1444+2313)}</em>

<em>X^2 = = 35.159</em>

HENCE REQUIRED TEST STATICS IS 35.19

3 0
3 years ago
Từ điểm A ở ngoài (O) kẻ các tiếp tuyến AB, AC với đường tròn (B và C là các tiếp điểm), BC cắt OA tại D, trên cung nhỏ BC lấy E
Neko [114]
I don’t understand what is that
4 0
2 years ago
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