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4 years ago

Help solve the equation 536x-382x=23*32+6502 32m:166=480:30

Mathematics

1 answer:

Naya [18.7K]4 years ago

5 0

Its easy if you think well

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Please help me on these

Sergeu [11.5K]

1. x = 25 inches
2. Triangle c

3 0

3 years ago

Multiplying (-9)(-6)(2)=

yawa3891 [41]

Answer:

108

Step-by-step explanation:

3 0

3 years ago

Based on FAA estimates the average age of the fleets of the 10 largest U.S. commercial passenger carriers is 13.4 years with a s

Aliun [14]

Answer : 0.0129

Step-by-step explanation:

Given : Based on FAA estimates the average age of the fleets of the 10 largest U.S. commercial passenger carriers is $\mu=13.4$ years and standard deviation is $\sigma=1.7$ years.

Sample size : $n=40$

Let X be the random variable that represents the age of fleets.

We assume that the ages of the fleets of the 10 largest U.S. commercial passenger carriers are normally distributed.

For z-score,

$z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

For x=14

$z=\dfrac{14-13.4}{\dfrac{1.7}{\sqrt{40}}}\approx2.23$

By using the standard normal distribution table , the probability that the average age of these 40 airplanes is at least 14 years old will be :-

$P(x\geq 14)=P(z\geq2.23)\\\\=1-P(z$

Hence, the required probability = 0.0129

6 0

3 years ago

a dvd player remote control costs 266 a college student has 813 in her savings account how much will she have left in her saving

defon

Answer:

547

Step-by-step explanation:

Just subtract 813 - 266.

pls mark me as brainiest

5 0

3 years ago

Hi can someone help me with this

Ad libitum [116K]

Answer:

25 units

Step-by-step explanation:

Applying Pythagoras' Theorem,

(BD)^2= (CD)^2 + (BC)^2

(BC)^2= 65^2 - 60^2

(BC)^2= 625

BC= √625= 25

5 0

3 years ago