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2 years ago

50 POINTS | GIVING BRAINLIEST | REPORTING FALSE ANSWERS | NO LINKS

Mathematics

2 answers:

nikklg [1K]2 years ago

7 0

1/3+1/3+1/3=1
That’s your answers double check in calculator if you think it’s wrong

yarga [219]2 years ago

5 0

Answer:

2/8 + 1/4 + 3/6 = 1

Step-by-step explanation:

2/8 = 0.25

1/4 = 0.25

3/6 = 0.5

0.25 + 0.25 + 0.5 = 1

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X is a normally Distributed random variable with a standard deviation of 4.00. Find the mean of X when 64.8% of the area lies to

Cerrena [4.2K]

Answer:

Step-by-step explanation:

σ = 4 ; μ =?

8.52 to the left of X

P(X < 8.52) = 64.8%

P(X < 8.52) = 0.648

Using the Z relation :

(x - μ) / σ

P(Z < (8.52 - μ) / 4)) = 0.648

The Z value of 0.648 of the lower tail is equal to 0.38 (Z probability calculator)

Z = 8.52 - μ / 4

0.38 = 8.52 - μ / 4

0.38 * 4 = 8.52 - μ

1.52 = 8.52 - μ

μ = 8.52 - 1.52

μ = 7

5 0

3 years ago

Expand the following 1/6 (18x-24)

monitta

Hello,

What we want to do is multiply 1/6 by each value within the parentheses individually.

So, it would be:
(1/6) * (18x) = 3x
(1/6) * (-24) = -4

Together, this would be 3x-4.

Hope this helps!

4 0

2 years ago

Read 2 more answers

The playing life of a Sunshine radio is normally distributed with mean LaTeX: \muμ = 600 hours and standard deviation LaTeX: \si

Hitman42 [59]

Answer:

The probability that a radio selected at random will last from 600 to 700 hours is 0.3413

Step-by-step explanation:

The playing life of a Sunshine radio is normally distributed

Mean = $\mu = 600 hours$

Standard deviation = $\sigma = 100 hours$

We are supposed to find the probability that a radio selected at random will last from 600 to 700 hours i.e.P(600<x<700)

Formula: $Z= \frac{x-\mu}{\sigma}$

At x = 600

$Z= \frac{600-600}{100}$

Z=0

$P(X$

At x = 700

$Z= \frac{700-600}{100}$

Z=1

$P(X$

$P(600$

Hence the probability that a radio selected at random will last from 600 to 700 hours is 0.3413

8 0

3 years ago

In the expression (x + y)^8, if x = 0.3 and y = 0.7, what is the numerical value of the third term?

DerKrebs [107]

The answer i see is d

8 0

2 years ago

Read 2 more answers

Picture of math assignment

n200080 [17]

Answer:

${5}^{ - 7}$

Step-by-step explanation:

You have to use the property of quotient of powers, you subtract the power of the fraction denominator from the numerator

6 0

2 years ago

Read 2 more answers