1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MakcuM [25]
2 years ago
7

Im doing a test online and i dont know how to show factoring like this

Mathematics
2 answers:
lilavasa [31]2 years ago
5 0

Answer:

Step-by-step explanation:

just use division

jeka57 [31]2 years ago
3 0
Rnrkkrmrmmrnrnrjrnrnrrotktktkkrmdms s s e. End r Rn r
You might be interested in
In a study of government financial aid for college​ students, it becomes necessary to estimate the percentage of​ full-time coll
ICE Princess25 [194]

Answer:

a) n = 1037.

b) n = 1026.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}

The margin of error is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

99% confidence level

So \alpha = 0.01, z is the value of Z that has a pvalue of 1 - \frac{0.01}{2} = 0.995, so Z = 2.575.

​(a) Assume that nothing is known about the percentage to be estimated.

We need to find n when M = 0.04.

We dont know the percentage to be estimated, so we use \pi = 0.5, which is when we are going to need the largest sample size.

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.04 = 2.575\sqrt{\frac{0.5*0.5}{n}}

0.04\sqrt{n} = 2.575*0.5

(\sqrt{n}) = \frac{2.575*0.5}{0.04}

(\sqrt{n})^{2} = (\frac{2.575*0.5}{0.04})^{2}

n = 1036.03

Rounding up

n = 1037.

(b) Assume prior studies have shown that about 55​% of​ full-time students earn​ bachelor's degrees in four years or less.

\pi = 0.55

So

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.04 = 2.575\sqrt{\frac{0.55*0.45}{n}}

0.04\sqrt{n} = 2.575*\sqrt{0.55*0.45}

(\sqrt{n}) = \frac{2.575*\sqrt{0.55*0.45}}{0.04}

(\sqrt{n})^{2} = (\frac{2.575*\sqrt{0.55*0.45}}{0.04})^{2}

n = 1025.7

Rounding up

n = 1026.

6 0
3 years ago
If y has moment-generating function m(t) = e 6(e t −1) , what is p(|y − µ| ≤ 2σ)?
Lostsunrise [7]
Since \mathrm M_Y(t)=e^{6(e^t-1}, we know that Y follows a Poisson distribution with parameter \lambda=6.

Now assuming \mu,\sigma denote the mean and standard deviation of Y, respectively, then we know right away that \mu=6 and \sigma=\sqrt6.

So,

\mathbb P(|Y-\mu|\le2\sigma)=\mathbb P(6-2\sqrt6\le Y\le6+2\sqrt6)=\dfrac{66366}{175e^6}\approx0.940028
6 0
3 years ago
2 6 unit squares each have of their area shaded. 3 What is the total area that is shaded? square units​
Kobotan [32]

Answer:

6

Step-by-step explanation:

The area of each of the squares is 3. There's 2 so it's 6.

4 0
3 years ago
Which of the binomials below is a factor of this trinomial x^2+4x-60
trasher [3.6K]

Suppose x-6 is listed as a possible answer. That is zero if x = 6. So put x=6 into the original x^2 + 4x - 60 to get 6^2 + 4*6 - 60 = 36 + 24 -60 = 0. hence x-6 is a factor.

Answer (x-6)

on this hand :x-5 is not a factor, because plugging x=5 into does not work.

6 0
3 years ago
Simplify and write as a decimal.
oksian1 [2.3K]

11.9

i just got it right on a quiz so yeah

6 0
3 years ago
Other questions:
  • Systems of equations with different slopes and different y-intercepts have one solution. Plzzz explain
    11·1 answer
  • What is the value of x?<br> Enter you answer in the box<br><br> X= In.
    10·1 answer
  • A segment has exactly one end point.<br> a. True<br> b. False
    15·1 answer
  • Please explain your answer! Which of the following best represents time preference?
    9·1 answer
  • Malachy, Sushil and Fiona share some sweets in the ratio 7:1:1. Malachy gets 90 more sweets than Fiona. How many sweets does Sus
    7·1 answer
  • A fruit basket is filled with 8 bananas, 3 oranges, 5 apples, and 6 kiwis.
    12·1 answer
  • What is the constant of proportionality between yyy and xxx in the graph?
    7·2 answers
  • Evaluate A^2 for A = 2.3.
    14·2 answers
  • Which fraction is not equivalent to 9/12<br> 15/20<br> 24/32<br> 6/8<br> 16/24
    10·2 answers
  • Line /1 and line /2 are parallel line
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!