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2 years ago

What inverse operation is used to solve the equation? x 2 = 10

Mathematics

2 answers:

Alla [95]2 years ago

6 0

Answer:

Step-by-step explanation:

? x 2 = 10

/2 /2

? =5

IrinaVladis [17]2 years ago

6 0

Answer: c multiply by 2 on both sides

Step-by-step explanation:

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Zinaida [17]

Answer:

$E[R]$ = 99 Ω

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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

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Answer:

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