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3 years ago

Evaluate the expression 3(x - 1)' + 2x - 7 for = 3,

Mathematics

1 answer:

Marizza181 [45]3 years ago

4 0

Answer and step-by-step explanation:

Break the bracket out would be the first step to evaluate this expression:

3(x-1)

= 3x - 3

Hope this helped :3

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Is 3/5 equivalent to 0.35

MatroZZZ [7]

3/5 = .6
So, 3/5 is not equivalent to .35

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3 years ago

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If a set of data has mean 60 and variance 9 then it's coefficient of variation is

loris [4]

Coefficient of variation is calculated by dividing the standard deviation by the mean multiplied by 100. Given a data set with mean equal to 60 and variance equal to 9, we can calculate the coefficient of variation by finding the value of the standard deviation which is the square root of the variance. so standard deviation is equal to square root of 9 which is 3. Then, the coefficient of variation is equal to 3/60*100 which is equal to 5%.

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3 years ago

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Activating Schema: Draw the figure described below. Then solve for length PR. Right Triangle PQR with the following characterist

Marina CMI [18]

The given triangle is

To solve for PR, we have to use the sine function which is equivalent to the ratio between the opposite leg and the hypothenuse.

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1 year ago

Thee population of a town, P(t), is 2000 in the year 2010. Every year, it increases by 1.5%. Write an equation for the populatio

steposvetlana [31]

Given:

In 2010, the population of a town = 2000

Every year, it increase by 1.5%

To find the equation P(t) which represents the population of this town t years from 2010.

Formula

If a be the original population of a town and it increases by b% every year, after t year the population will be

$a (1+\frac{b}{100} )^{t}$

Now,

Taking, a =2000, b = 1.5 we get,

$P(t) = 2000(1+\frac{1.5}{100} )^{t}$

or, $P(t) = 2000(1+0.015)^{t}$

Hence,

The population of this town t years from 2010 P(t) = $2000(1+0.015)^{t}$ , Option D.

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3 years ago

What would you have to do to change 10 cubic feet into cubic inches?

andrezito [222]

1 foot = 12 inches

(1 foot)³ = (12 inches)³

12³ = 1,728 in³

To change 10 cubic feet into cubic inches

10 ft³ x 1728 in³/ft³ = 17,280 in³

So the answer will be:
C. Multiply by 1,728

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3 years ago