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xz_007 [3.2K]
2 years ago
14

Help ;-; Im almost overdue and I'n only on Q.13/24

Mathematics
2 answers:
Mamont248 [21]2 years ago
8 0
C is the correct answer you flip the numbers around
jolli1 [7]2 years ago
7 0

Answer: C (-7/18)

Step-by-step explanation: you flip the denominator and numerator and keep the negative

You might be interested in
A market research firm conducts telephone surveys with a 50% historic response rate. suppose a sample of 400 is taken. what is t
solmaris [256]
N=400
sample proportion >= .475 => n>=.475N=190
mean response rate of population, p=0.5
Problem satisfies criteria for binomial distribution, where
P(x>=190)=sum P(x=i), i=190 to 400
This can be obtained from binomial distribution tables, calculators, or software as 
P(x>=190)=1-P(x<190)=1-0.14685=0.85315

Alternatively, normal approximation can be used.
mean=Np=400*.5=200
variance=Npq=400(.5)(1-.5)=100
standard deviation=sqrt(variance)=sqrt(100)=10
Calculate P(X>=190)=1-P(X<190)
X with continuity correction = 189.5
Z=(X-mean)/standard deviation=(189.5-200)/10=-1.05
P(z<Z)=P(z<-1.05)=0.14686 (from normal probability tables)
hence
P(X>=190)=1-P(X<190)=1-P(z<-1.05)=1-0.14686=0.85314 (approximately)

almost same as the exact binomial solution.

4 0
3 years ago
Find the volume of the solid.<br><br><br> 6 cm<br> 8cm<br> 15 cm
Bess [88]

Answer:

720 cm^3

Step-by-step explanation:

8 0
3 years ago
Solve 2(3x+3)=2(4x) and 2(7x-2)=2x+4
VARVARA [1.3K]
6x+6=8x
-6x     -6x
          -----
       6=2x
  6 divided by 2
x=3



6 0
3 years ago
Read 2 more answers
Look at the PDF and look answer the question, pls do explain
gulaghasi [49]

Answer:

26 hamburgers.

Step-by-step explanation:

8 2/3=26/3 each hamburger takes 1/3 meat. So 26/3 ÷1/3=26

8 0
3 years ago
Read 2 more answers
1. The length of a rectangle is 5 mm longer than its width. Its perimeter is more than 30 mm. Let w equal the width of the recta
VLD [36.1K]
The of the rectangle is w > 5mm
4 0
3 years ago
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