2 years ago

WILL MARK AS BRAINLIEST!!PLEASE HELP!!!!!!

Mathematics

1 answer:

Tema [17]2 years ago

3 0

Answer:

9^24. and in feet is 19683 ft

Step-by-step explanation:

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Step-by-step explanation:

An octagon has 8 sides and the shapes on the bottom of the shape are 8 rectangles.

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2 years ago

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Resistors are labeled 100 Ω. In fact, the actual resistances are uniformly distributed on the interval (95, 103). Find the mean

Zinaida [17]

Answer:

$E[R]$ = 99 Ω

$\sigma_R$ = 2.3094 Ω

P(98<R<102) = 0.5696

Step-by-step explanation:

The mean resistance is the average of edge values of interval.

Hence,

The mean resistance, $E[R] = \frac{a+b}{2} = \frac{95+103}{2} = \frac{198}{2}$ = 99 Ω

To find the standard deviation of resistance, we need to find variance first.

$V(R) = \frac{(b-a)^2}{12} =\frac{(103-95)^2}{12} = 5.333$

Hence,

The standard deviation of resistance, $\sigma_R = \sqrt{V(R)} = \sqrt5.333$ = 2.3094 Ω

To calculate the probability that resistance is between 98 Ω and 102 Ω, we need to find Normal Distributions.

$z_1 = \frac{102-99}{2.3094} = 1.299$

$z_2 = \frac{98-99}{2.3094} = -0.433$

From the Z-table, P(98<R<102) = 0.9032 - 0.3336 = 0.5696

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3 years ago

How much acid acid is in a 10 L container of acetic acid and water that is marked 80% acetic acid

Readme [11.4K]

8L because 80% —> 80/100 —> 8/10

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2 years ago

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