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Gennadij [26K]
4 years ago
11

What is u^+6u-27 factoring

Mathematics
1 answer:
MissTica4 years ago
7 0
U² + 6u - 27
u² + 9u - 3u - 27
(u - 3)(u + 9)
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Use the x-intercept method to find all real solutions of the equation. -9x^3-7x^2-96x+36=3x^3+x^2-3x+8
Varvara68 [4.7K]

Answer:

  x ≈ 0.290640965127

Step-by-step explanation:

By subtracting the right side of the equation, we get a function that is zero at a real solution for x. The only x-intercept is at approximately 0.290640965127.

___

The graph shows the x-intercept to be 0.2906. The value above was obtained by Newton's method iteration. The roots of this cubic will all be irrational.

4 0
4 years ago
Could anyone prove this question correct... pls... I will mark branliest for step by step solution.
Masja [62]

Answer:

C

Step-by-step explanation:

the answer is 15. hope this helps

8 0
3 years ago
X + 8 + 2x <= 2x + 13
sergejj [24]

Answer:

X = 15

Step-by-step explanation:

We move all terms to the left:

<em>x+8+2x-(2x+13)=0</em>

We add all the numbers together, and all the variables:

<em>3x-(2x+13)+8=0</em>

We get rid of parentheses:

<em>3x-2x-13+8=0</em>

We add all the numbers together, and all the variables:

<em>x-5=0</em>

We move all terms containing x to the left, all other terms to the right:

<em>x=5</em>

5 0
3 years ago
Aroon is asked to choose five integers so that the mode is 2 more than the median and the mean is 2 less than the median.
torisob [31]
  • The mean is the sum of observations divided by number of observations.
  • x bar = (∑x)/n
  • The median is the middle value of the ordered data <u><em>or</em></u> the value of the interval n+1/2 for odd numbered data.
  • The mode is the repeated value.

<h3>The highest value is 0</h3>

  • Number of observations= n= 5
  • Median is the 3rd value when the data is arranged.
  • Mode is unknown

The relation between <u><em>Mean, Median</em></u> and <u><em>mode</em></u> is given by

Mode= 3 Median - 2Mean---- equation1

According to the given condition

Mode= 2+median ----- equation 2

Putting equation 2 in equation 1

2+median= 3 Median - 2Mean

2 Mean= 3 Median - 2- Median

2 Mean= 2 Median - 2

Mean= Median-1

Mean- Median=1--------Eq. A

According to the <u><em>second condition</em></u>

Median- Mode=-2-----------eq. 3

Putting eq. A in eq. 3

Mean -1 - Mode=-2

Mean- Mode=-1

or

Mode- Mean=1------equation 4

Adding <u><em>equation A</em></u> and <u><em>equation4</em></u>

Mode- Mean=1

<u>Mean- Median=1</u>

<u>Mode+ Median =2------- equation5</u>

<u />

Again Putting equation2 in equation 5

2+median + Median =2

2 Median =2-2

2 Median =0

Median=0

Mean= 0-1

Mean= 0-1=-1

Mode- Mean=1

Mode-(-1)=1

Mode=0

Putting values in the formula of mean

x bar =∑x/5

(-1)5 = 0+0+ x1+x2+0

-5=  x1+x2

<u><em>So the highest value is 0.</em></u>

Learn more about mean here

brainly.com/question/542771

brainly.com/question/14532771

6 0
3 years ago
The population of weights of a particular fruit is normally distributed, with a mean of 535 grams and a standard deviation of 13
Savatey [412]

Pn(Z>zp)=1−p%

Given a variable X following a normal distribution with mean μ and standard deviation σ, the area below the curve that corresponds to all values that are less than a that is, X<a

is the probability P(X<a). This probability is usually calculated by converting the variable X to a standard normal variable Z (forming z scores) defined by:

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

The variable Z follows the standard normal distribution with a mean of 0 and a standard deviation of 1.

The standard normal probabilities are typically found by using the standard normal tables or other computational means such as calculators or software.

Pn(Z>zp)=1−p%

Here Pn is the probability for the standard normal variable.

Learn more about mean here brainly.com/question/18060320

#SPJ4

6 0
2 years ago
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