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4 years ago

9

Carlos chooses 50 movies at random from a list of all his movies to determine the average runtime of the movies in his collectio

n
determine whether each sample is random or a biased sample. Explain.

1 answer:

sveticcg [70]4 years ago

7 0

Answer:

subtract the #

Step-by-step explanation:

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Nick’s parents purchased their first home in the 1980’s with a 30-year mortgage at 19.5%.

siniylev [52]

<span>$ 2037.40 </span>

<span>Interesting that there was no down payment..........The staggering monthly payment above would be enough to pay off the total mortgage in just over 5 years. Nick's parents would be much better off to save their money for a few years.</span>

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3 years ago

Polynomials!?!? What is the product of -2x^3+x-5 and x^3-3x-4... Is the product of -2x^3+x-5 and x^3-3x-4 equal to the product o

zaharov [31]

T<span>he product of -2x^3+x-5 and x^3-3x-4 would look like this before simplification:

-2x^6 + 6x^4 - 8x^3 + x^4 - 3x^2 - 4x - 5x^3 + 15 x^2 + 20

Now combine all the like terms. For example, 6x^4 + x^4 = 7x^4.

Write the product in the simplest possible form, which involves combining like terms and arranging them in descending order by power of x.

</span>

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3 years ago

Jed and Cagney's neighbor ran 16.9 miles in just 2 hours today.

IgorC [24]

Answer:

B | 8.45 miles per hour.

Step-by-step explanation:

8.45 x 2 is 16.9.

7 0

3 years ago

What is an equation of the line that passes through the points (-3, 8) and (4, 1)?

butalik [34]

Answer:

The equation of the line is:

$y=-x+5$

Step-by-step explanation:

Given the points

(-3, 8)

(4, 1)

Finding the slope between the points

$\left(x_1,\:y_1\right)=\left(-3,\:8\right),\:\left(x_2,\:y_2\right)=\left(4,\:1\right)$

$\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$m=\frac{1-8}{4-\left(-3\right)}$

$m=-1$

Using the point-slope form of the line equation

$y-y_1=m\left(x-x_1\right)$

where m is the slope

substituting the values m = -1 and the point (-3, 8)

$y-y_1=m\left(x-x_1\right)$

$y-8=-1\cdot \left(x-\left(-3\right)\right)$

$y-8=-\left(x+3\right)$

Add 8 to both sides

$y-8+8=-\left(x+3\right)+8$

$y=-x+5$

Therefore, the equation of the line is:

$y=-x+5$

8 0

3 years ago

The measure of an angle is fifty-nine times the measure of a supplementary angle.What is the measure of each angle?

natta225 [31]

3° and 177°

supplementary angles sum to 180°

let x be an angle then the other angle is 59x

x + 59x = 180

60x = 180 ( divide both sides by 60 )

x = $\frac{180}{60}$ = 3

the angles are 3° and (59 × 3 )= 177°

8 0

3 years ago