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3 years ago

What is the value of R in this circuit

Mathematics

1 answer:

goblinko [34]3 years ago

5 0

See that messy ugly fraction on the right side of the equation ? Let's make it easier to write.

If we multiply the top and bottom of the fraction by the same thing, we won't change the value of the fraction. Let's multiply top and bottom by R .

The fraction 1 / (1/R + 1/2R)

Multiply top and bottom by R :

The fraction = R / (1 + 1/2) .

But that's just R/1.5 .

So 20 = R/1.5

Multiply each side of this equation by 1.5 , and you have . . .

30 = R

This is not even a problem about electrical circuits or resistors. This is a problem about handling complicated fractions to make them less messy.

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3 years ago

The Sensor Dynamics Corporation did a scientific study on the impact of absenteeism on increased costs. It determined that there

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Absenteeism significantly increases cost.

Step-by-step explanation:

We are given the following in the question:

The Sensor Dynamics Corporation did a scientific study on the impact of absenteeism on increased costs.

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Correlation:

It is a measure of linear relationship between two quantities.

A positive correlation means that an increase in one quantity leads to an increase in another quantity

A negative correlation means with increase in one quantity the other quantity decreases.

Values between 0 and 0.3 tells about a weak positive linear relationship, values between 0.3 and 0.7 shows a moderate positive correlation and a correlation of 0.7 and 1.0 states a strong positive linear relationship.

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3 years ago

Solve 1 - 12 or any question please

ZanzabumX [31]

There two forms to write an equation in; slope-intercept form, y = mx + b, where m is the slope and b is the y-intercept; and point-slope form, which is given by $y-y_1=m(x-x_1)$ , where m is the slope and (x₁, y₁) is a point on the line. Given the information and instructions you have I assume you need point-slope form. For #1, you have m = 2 and point (3, 5). Substitute these values in:
$y-5=2(x-3)$
If you need slope-intercept form, you start by using the distributive property on what you just wrote:
$y-5=2*x-2*3
\\y-5=2x-6$
Now cancel the 5 to isolate y:
$y-5+5=2x-6+5
\\y=2x-1$

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3 years ago