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3 years ago

NEED THE ANSWER ASAP PLEASE

Mathematics

1 answer:

Juliette [100K]3 years ago

4 0

The answer is y=1x+7
1 4

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lina2011 [118]

Answer:

n = 9.2

Step-by-step explanation:

Isolate the variable by dividing each side by the numbers that do not contain the variable

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3 years ago

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sergeinik [125]

Answer:

Picture

Step-by-step explanation:

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3 years ago

Hi i am having trouble dividing decimals, im not really sure how to devide at all i keep forgeting.

kolbaska11 [484]

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3 years ago

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

Raj recorded the scores of six of his classmates in the table.

WINSTONCH [101]

98-70 is 28 meaning that the range is 28

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3 years ago