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3 years ago

Answer fast please and thank you

Mathematics

2 answers:

Nimfa-mama [501]3 years ago

7 0

Answer:

C, zero slope should be correct

Step-by-step explanation:

hope this helps, sorry if im wrong

Alenkasestr [34]3 years ago

3 0

Answer:

zero slope

Step-by-step explanation:

In a zero slope, the numerator is zero. This means that the “Y” points (Y1 and Y2) produce a difference of zero between the variables. Zero divided by any non-zero denominator will result in zero. This also results in a straight, horizontal line on the graph that neither climbs nor descends along the “X” axis.

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You are reading a new book. On Monday you read 3 pages. On each day after that, you read 3 times the number of pages you read on

Inessa05 [86]

81 pages.

Step-by-step explanation:

Tuesday: 3 x 3 = 9

Wednesday: 9 x 3 = 27

Thursday: 27 x 3 = 81

7 0

3 years ago

Read 2 more answers

If X is a binomial random variable with parameters n and p, what is the expected value of X?

Daniel [21]

Answer:

For this case we know that the random variable of interest would be X and the distribution for X is given by:

$X \sim Bin (n,p)$

And by properties of this distribution the expected value for this case is:

$E(X)= np$

And the variance :

$Var(X)= np(1-p)$

Step-by-step explanation:

For this case we know that the random variable of interest would be X and the distribution for X is given by:

$X \sim Bin (n,p)$

And by properties of this the expected value for this case is:

$E(X)= np$

And the variance :

$Var(X)= np(1-p)$

8 0

3 years ago

Someone please help me answer this !

Daniel [21]

C

It would also be in Quadrend 1

4 0

3 years ago

Read 2 more answers

A multiple choice test consists of 60 questions. Each question has 4 possible answers of which one is correct. If all answers ar

Inga [223]

Answer:

Option 4 - 0.8508

Step-by-step explanation:

Given : A multiple choice test consists of 60 questions. Each question has 4 possible answers of which one is correct. If all answers are random guesses.

To find : Estimate the probability of getting at least 20% correct ?

Solution :

20% correct out of 60,

i.e. $20\%\times 60=\frac{20}{100}\times 60=12$

Minimum of 12 correct out of 60 i.e. x=12

Each question has 4 possible answers of which one is correct.

i.e. probability of answering question correctly is $p=\frac{1}{4}=0.25$

Total question n=60.

Using a binomial distribution,

$P(X\geq 12)=1-P(X\leq 11)$

$P(X\geq 12)=1-[P(X=0)+P(X=1)+P(X=0)+P(X=1)+P(X=2)+P(X=3)+P(X=4)+P(X=5)+P(X=6)+P(X=7)+P(X=8)+P(X=9)+P(X=10)+P(X=11)]$

$P(X\geq 12)=1- [^{60}C_0(0.25)^0(1-0.25)+^{60-0}+^{60}C_1(0.25)^1(1-0.25)^{60-1}+^{60-1}+^{60}C_2(0.25)^2(1-0.25)^{60-2}+^{60}C_3(0.25)^3(1-0.25)^{60-3}+^{60}C_4(0.25)^4(1-0.25)^{60-4}+^{60}C_5(0.25)^5(1-0.25)^{60-5}+^{60}C_6(0.25)^6(1-0.25)^{60-6}+^{60}C_7(0.25)^7(1-0.25)^{60-7}+^{60}C_8(0.25)^8(1-0.25)^{60-8}+^{60}C_9(0.25)^9(1-0.25)^{60-9}+^{60}C_{10}(0.25)^{10}(1-0.25)^{60-10}+^{60}C_{11}(0.25)^{11}(1-0.25)^{60-11}]$

$P(X\geq 12)\approx 0.8508$

Therefore, option 4 is correct.

4 0

4 years ago

Show or describe two different ways to complete the comparison using < , > ,or =: 0.26 () 0.4

nordsb [41]

0.26 < 0.4
Reason: 0.26 is less than 0.4 which also can be written as 0.40.
The "mouth" points to the bigger number.

7 0

3 years ago