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3 years ago

Solve for x 3 1+3+x=- 9 (will give brainlist if correct. yes, i know i spelled that wrong.)

Mathematics

1 answer:

masha68 [24]3 years ago

5 0

Answer:

-13

Step-by-step explanation:

I didn't incliDE the 3 at the first if I need to include it I will do again

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A manufacturing process makes rods that vary slightly in length but follow a normal distribution with mean length 25 cm and stan

Galina-37 [17]

Answer:

The probability of randomly selecting a rod that is shorter than 22 cm

P(X<22) = 0.1251

Step-by-step explanation:

Step(i):-

Given mean of the Population = 25cm

Given standard deviation of the Population = 2.60

Let 'x' be the random variable in normal distribution

Given x=22

$Z = \frac{x-mean }{S.D} = \frac{22-25}{2.60} = -1.15$

Step(ii):-

The probability of randomly selecting a rod that is shorter than 22 cm

P(X<22) = P( Z<-1.15)

= 1-P(Z>1.15)

= 1-( 0.5+A(1.15)

= 0.5 - A(1.15)

= 0.5 - 0.3749

= 0.1251

The probability of randomly selecting a rod that is shorter than 22 cm

P(X<22) = 0.1251

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3 years ago

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3 years ago

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Svetllana [295]

Answer:

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Step-by-step explanation:

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3 years ago

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jek_recluse [69]

Step-by-step explanation:

= -4 ÷ ( 1/3 × (7 - 1/2) ) + 3

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3 years ago

Solve for x 3 1+3+x=- 9 (will give brainlist if correct. yes, i know i spelled that wrong.)​

Solve for x 3 1+3+x=- 9 (will give brainlist if correct. yes, i know i spelled that wrong.)