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andrey2020 [161]
3 years ago
9

3xy - 4y when y = 2 and x = 5​

Mathematics
2 answers:
tia_tia [17]3 years ago
7 0

Answer:

22

Step-by-step explanation:

kupik [55]3 years ago
4 0
The answer is 22!! :) mark me as brainliest please so I can help more people ?!
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1. 5 cups to 8 cups 2. 150 pounds to 135 pounds
STatiana [176]
The answer would be 60 to 30% i hope this helps<33
8 0
3 years ago
Thank you!!!!!!!!!!!!!!!
OverLord2011 [107]

Answer:

Binomial distribution requires all of the following to be satisfied:

1. size of experiment (N=27) is known.

2. each trial of experiment is Bernoulli trial (i.e. either fail or pass)

3. probability (p=0.14) remains constant through trials.

4. trials are independent, and random.

Binomial distribution can be used as a close approximation, with the  usual assumption that a sample of 27 in thousands of stock is representative of the population., and is given by the probability of x successes (defective).

P(x)=C(N,x)*p^x*(1-p)^(n-x)

where N=27, p=0.14, and C(N,x) is the number of combinations of x items out of N.

So we need the probability of <em>at most one defective</em>, which is

P(0)+P(1)

= C(27,0)*0.14^0*(0.86)^(27) + C(27,1)*0.14^1*(0.86^26)

=1*1*0.0170 + 27*0.14*0.0198

=0.0170+0.0749

=0.0919


4 0
3 years ago
(-0.5x-0.4)-8(0.75x-0.6)​
SashulF [63]

Answer: -6.5x+4.4

Step-by-step explanation:

7 0
3 years ago
You build 7 model airplanes during the summer. At the end of the summer, you have 25 model airplanes. How many model airplanes d
zimovet [89]

Answer:

18

Step-by-step explanation:

You have 25 when you are done, but you made 7, so subtract that from 27.

25-7 equals 18.

6 0
4 years ago
What is the cost per pound? $5.48 for 4 pounds of grapes.
Agata [3.3K]

Answer:

$1.37/lb

Step-by-step explanation:

5.48/4

4 0
3 years ago
Read 2 more answers
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