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3 years ago

3,836 ÷ 63 = 60 r 9 58 r 56 60 r 56 58 r 9

Mathematics

1 answer:

pentagon [3]3 years ago

8 0

The answer would be c, because 63•60+56=3836

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The weights of items produced by a company are normally distributed with a mean of 4.5 ounces and a standard deviation of 0.3 ou

GalinKa [24]

Answer:

The right solution is:

(a) 0.8849

(b) 12.28%

(c) 4.9935

(d) 28004

Step-by-step explanation:

Given:

Mean,

= 4.5

Standard deviation,

= 0.3

(a)

P(x > 4.14)

As we know,

⇒ $z = \frac{4.14-4.5}{0.3}$

$=-1.20$

then,

⇒ $P(z>-1.20) = P(z$

$=0.8849$

(b)

P(4.8 < x < 5.04)

= $P(\frac{4.8-4.5}{0.3} < \frac{x-\mu}{\sigma} < \frac{5.04-4.5}{0.3} )$

= $P(1$

= $P(z$

= $0.9641 -0.8413$

= $0.1228$

or,

= $12.28$ (%)

(c)

P(x > x) = 0.05

z value will be,

= 1.645

⇒ $1.645 = \frac{x - 4.5}{0.3}$

$x = 4.9935$

(d)

P(x < 5.01)

⇒ $z = \frac{x- \mu}{\sigma}$

$=\frac{5.01-4.5}{0.3}$

$=1.7$

P(z < 1.70) = 0.9554

⇒ $n = \frac{27875}{0.9954}$

$=28004$

3 0

3 years ago

Pre Points Follow por more

Kamila [148]

nani .-. why tho?

why need followers?

must reason why

7 0

2 years ago

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Suppose A and B are independent events. If P(A) = 0.3 and P(B) = 0.9, what is P(AuB)?

Nadusha1986 [10]

When the events are independent
P(A∪B) = P(A) + P(B) - P(A∩B) . . . . where P(A∩B) = P(A)·P(B)

Substituting the given numbers, you have
P(A∪B) = 0.3 + 0.9 - 0.3·0.9
P(A∪B) = 0.93

3 0

3 years ago

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A 45-45-90 triangle has legs of length 3√2

qwelly [4]

Answer:

Step-by-step explanation:

the hypotenuse should be 3√2*√2=6

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3 years ago

Find the area of the circle

snow_lady [41]

Answer:

A=πr2

Step-by-step explanation:

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