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3 years ago

1. Find all the zeros of the polynomial P(x) = 2x^3 – x^2 – 4x+3

Mathematics

2 answers:

umka21 [38]3 years ago

4 0

Answer:

nicce

Step-by-step explanation:

Firlakuza [10]3 years ago

4 0

Since -1 is a zero, (x+1) is a factor.
If you know how to do polynomial division, you can divide P(x) by (x+1) to give a quadratic.

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At the movie theatre, child admission is $5.40 and adult admission is $8.70 . on friday, 159 tickets were sold for a total sales

blondinia [14]

Alright this is gonna be a long one

Lets called child tickets x and adult tickets y

so x + y should be equal to 159 since they said that the total sum of the tickets is 159
so thats your first equation : x + y = 159

next form an equation using the prices,
5.40x + 8.70y = 1079.70

now that you have your two equations, just substitute the first into the second (you could either substitute for x or y by saying x = 159-y or that y=159-x)

Hope this helps.

7 0

3 years ago

How to expand the following problem

Evgen [1.6K]

Answer is 2 because it’s true

5 0

3 years ago

Assume the readings on thermometers are normally distributed with a mean of 0degreesC and a standard deviation of 1.00degreesC.

faust18 [17]

Answer:

$P(-2.06$

And we can find this probability with this difference:

$P(-2.06$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the temperatures of a population, and for this case we know the distribution for X is given by:

$X \sim N(0,1)$

Where $\mu=0$ and $\sigma=1$

We are interested on this probability

$P(-2.06$

And the best way to solve this problem is using the normal standard distribution and the z score given by:

$z=\frac{x-\mu}{\sigma}$

If we apply this formula to our probability we got this:

$P(-2.06$

And we can find this probability with this difference:

$P(-2.06$

8 0

4 years ago

A circular ice rink is being built in town. Around the ice rink, a walkway will be built. The ice rink will have a diameter of 8

Archy [21]

so the ice rink diameter is 80 feet what mean that the radius of ice rink is 40 feet the walkway is 10 feet wide so 10+40=50 what mean that the radius and the walkway wide make 50 feet length together
using this length area = pi*r^2 = 3,14*(50)^2 = 7850 feet squared
area of ice rink = 3,14*40^2 = 5024 feet squared

area of the walkway = 7850-5024 = 2826 feet squared

hope helped

8 0

4 years ago

Read 2 more answers

PLEASE HELP ME GUYS!!

Softa [21]

Answer:

n=20

Step-by-step explanation:

$S_{n} =\frac{n(a_{1}+a_{n})}{2}\\\\1260 =\frac{n(25+101)}{2} \\\\n = 20$

8 0

3 years ago

1. Find all the zeros of the polynomial P(x) = 2x^3 – x^2 – 4x+3​

1. Find all the zeros of the polynomial P(x) = 2x^3 – x^2 – 4x+3