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3 years ago

Factor polynomial -3x^2-16x-5

Mathematics

1 answer:

forsale [732]3 years ago

8 0

Answer:

-(3x^2 + 16x + 5)

-(3x+1)(x+5)

Step-by-step explanation:

-1(3x^2+15x+x+5)

-1(3x^2+16x+5)

-3x^2-16x-5

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The regression equation y = -0.414x + 106.55 approximates the percent of people in an

murzikaleks [220]

The correct option will be: A. 67%

Explanation

Given equation is: $y = -0.414x + 106.55$ , where $x$ is the length of the film in minutes and $y$ is the percentage of people finish watching the film.

Here, the length of the documentary is given as 95 minutes. So, we will plug $x=95$ into the above equation and get....

$y=-0.414(95)+106.55\\ \\ y=-39.33+106.55\\ \\ y=67.22 \approx 67$

(Rounded to the nearest percent)

So, the percentage of people in an audience who will finish watching a documentary that is 95 minutes long will be 67%

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3 years ago

A team has 3 wins for every loss they loss games how many did they win??

OLEGan [10]

The team has lost only 6 games (according to the comments). Let's say "x" is the amount of losses and "y" is the amount of wins.

For every loss, they have 3 wins, so in the end, this would be the equation:
$y = 3x$
or
$y = 3 \times x$
Although the first one would be the easier and most understandable to read.

So:
y = 3(6)
would equal
18

5 0

2 years ago

the mean of the commute time to work for a resident of a certain city is 28.8 minutes. assume the standard deviation of the comm

hjlf

Answer:

The minimum percentage of the commuters in the city has a commute time within 2 standard deviations of the mean is 75%.

Step-by-step explanation:

We have no information about the shape of the distribution, so we use Chebyshev's Theorem to solve this question.

Chebyshev Theorem

At least 75% of the measures are within 2 standard deviations of the mean.

At least 89% of the measures are within 3 standard deviations of the mean.

An in general terms, the percentage of measures within k standard deviations of the mean is given by $100(1 - \frac{1}{k^{2}})$ .

Applying the Theorem

The minimum percentage of the commuters in the city has a commute time within 2 standard deviations of the mean is 75%.

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3 years ago

Convert the fraction 2/11 to a decimal using long division

kupik [55]

Answer:

0.18181818181

Step-by-step explanation:

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2 years ago

You are building a rectangular dog pen with an area of 90ft^2. You want the length to be 3 ft longer that twice it's width. What

Alecsey [184]

I think the answers is the you think is if you think okayω

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2 years ago