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Marina CMI [18]
3 years ago
15

What number is not coefficient of n in the expression 3n + 8 - n + 4n

Mathematics
2 answers:
RoseWind [281]3 years ago
8 0
Coefficients are numbers that have variables attached to them.

8 is your answer, for it is a constant, which means it has no variables

It is asking for NOT a constant, which means that n is your answer, because it has no constants attached to it

hope this helps
gogolik [260]3 years ago
7 0
The only number that does not multiply n is 8, so 8 is the answer.
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Write <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%28x%2B1%29%5E2%28x-5%29%7D%7Bx%28x%2B2%29%28x-5%29%5E3%7D%20" id="TexForm
Marizza181 [45]

\bf \cfrac{x(x+1)^2(x-5)}{x(x+2)(x-5)^3}\implies \cfrac{(x+1)^2}{(x+2)(x-5)^2}


all we can really cancel is one of the (x-5) and the "x", is all.

5 0
3 years ago
The probability that an individual is left-handed is 0.12. in a class of 39 students, what is the probability of finding five le
Snezhnost [94]

We are given:

p = probability = 0.12<span>
n = total students = 39 </span>

x = left handers = 5<span>
u = mean = p* n = 4.68 
σ = standard dev = √ ( n*p*(1-p)) = √ ( 39 * 0.12 * 0.88 ) = 2.03</span>

 

Calculating for the z score:

z = (x – u) / σ<span>
z = (5 – 4.68) / 2.03</span>

<span>z = 0.1576 = 0.16

</span>

Using the standard tables for z, the p value is:

p value = 0.5636 = 56.36%

 

Hence there is a 56.36% chance.

<span> </span>

8 0
3 years ago
Read 2 more answers
A pet supply store lets you donate your change to the local animal shelter. Denise buys a bag of dog food for $15.74 and a squea
Marta_Voda [28]

Considering her change, it is found that she will donate $0.28 to the animal shelter.

<h3>How to find the amount of change in a purchase?</h3>

The amount of change is given by the subtraction of the total paid and the price of the products.

In this problem, the price of the products bought is given by:

$15.74 + $3.98 = $19.72

She paid $20, hence the change is given by:

$20 - $19.72 = $0.28.

More can be learned about the amount of change in a purchase at brainly.com/question/10866253

#SPJ1

6 0
1 year ago
The bat population in a certain Midwestern county was 270,000 in 2012, and the observed doubling time for the population is 34 y
Lena [83]
What’s the question?
3 0
3 years ago
△STR≅△LMN, SR=7b+8, and LN=11b−12. Find b and SR.
mote1985 [20]

Answer:

<em>b = 5</em>

Step-by-step explanation:

7 0
3 years ago
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