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Molodets [167]
2 years ago
9

What does an equal sign mean mathematically?

Mathematics
1 answer:
DIA [1.3K]2 years ago
3 0

Answer:

It means that the both sides of the expression in the given equation must be/are congruent.

Hope this helps!

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Because all airline passengers do not show up for their reserved seat, an airline sells 125 tickets for a flight that holds only
bekas [8.4K]

Answer: a) 0.9961, b) 0.9886

Step-by-step explanation:

Since we have given that

Probability that does not show up = 0.10

Probability that show up = 0.90

Here, we use "Binomial distribution":

n = 125 and p = 0.90

Number of passengers that hold in a flight = 120

a) What is the probability that every passenger who shows up can take the flight?

P(X\leq 120)=\sum_{x=0}^{120}^{125}C_x(0.90)^x(0.10)^{125-x}=0.9961

(b) What is the probability that the flight departs with empty seats?

P(X\leq 119)=\sum _{x=0}^{119}^{125}C_x(0.90)^x)(0.10)^{125-x}=0.9886

Hence, a) 0.9961, b) 0.9886

3 0
3 years ago
Hey guys help my please !!Q 4,6,7
padilas [110]
Q4, 4y²=60
y=√15 ( i am not sure)
q6, (5+y) ²=81
5+y=9
y=4
q7 (x+4) (x) =77
x²+4x-77=0
(x+11) (x-7) =0
x=-11(rej) or x=7
therefore ,length= 7+4=11cm
breadth=7cm
6 0
3 years ago
125 pounds decreased by 4% what is the new amount
Anvisha [2.4K]

You want 125 pounds minus 4% of it, so you want 96% just multiply it

125 . 96% = 125 . 96/100 = 120

3 0
3 years ago
Read 2 more answers
What are the qualification of? 0.3%
KIM [24]

Answer:

30

Step-by-step explanation:

4 0
2 years ago
Link is coloring a triforce, which consists of four equilateral triangles and is depicted below. He has three colors to use: gol
bogdanovich [222]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
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