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3 years ago

How will adding the value 75 affect the mean and median of the data set 1, 5, 7, 9 , 9, 10?

Mathematics

1 answer:

AlexFokin [52]3 years ago

4 0

B.
The median increases less than the mean increases.

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In one area, the cable company marked up the

butalik [34]

Cable company marked up monthly cost by 6% .New cost = $63.6

cost before increase = 63.6 × 100/106

= $60

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3 years ago

Question 14 of 25What is the complete factorization of the polynomial below?x³+x² + 4x+4O A. (x-1)(x+2)(x+2)B. (x + 1)(x + 2)(x

mote1985 [20]

GIVEN:

We are given the following polynomial;

$x^3+x^2+4x+4$

Required;

We are required to factorize this polynomial completely.

Step-by-step explanation;

To factorize this polynomial, we start by grouping;

$(x^3+x^2)+(4x+4)$

We now take the common factor in each group;

$\begin{gathered} x^2(x+1)+4(x+1) \\ \\ (x^2+4)(x+1) \end{gathered}$

Next, we factorize the first parenthesis. To do this we set the equation equal to zero and solve for x as follows;

$\begin{gathered} x^2+4=0 \\ \\ Subtract\text{ }4\text{ }from\text{ }both\text{ }sides: \\ \\ x^2=-4 \\ \\ Take\text{ }the\text{ }square\text{ }root\text{ }of\text{ }both\text{ }sides: \\ \\ x=\pm\sqrt{-4} \\ \\ x=(\pm\sqrt{-1}\times\sqrt{4}) \\ \\ x=\pm2i \end{gathered}$

Therefore, the factors of the other parenthesis are;

$(x+2i)(x-2i)$

Therefore, the complete factorization of the polynomial is;

ANSWER:

$(x+1)(x+2i)(x-2i)$

Option C is the correct answer.

4 0

1 year ago

SOMEONE HELP !!!!! PLEASEEEEEEEEEE!!!¡¡¡!¡!¡

vladimir1956 [14]

Answer is a, 57.49.

17.42-12.60-9.62= $-4.80+62.29=57.49

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4 years ago

Completely factor the expression 16t^3 - 50t^2 + 36t

NikAS [45]

$\bf 16t^3-50t^2+36t\implies 2t[8t^2-25t+18]\implies 2t[(8t-9)(t-2)]$

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3 years ago

What is the ruler postulate

ch4aika [34]

Answer:

The points on a line can be assigned real number coordinates (think of numbers on a number line). The distance between any two points is their difference.

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3 years ago