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Roman55 [17]
3 years ago
9

if y is inversely proportional to 2x + 1 and the difference in the values of y when x= 0.5 and x= 2 is 0.9, find the value of y

when x = -0.25
Mathematics
1 answer:
Anna35 [415]3 years ago
5 0

Answer:

6

Step-by-step explanation:

answer is in photo above

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Larry bought 12 containers of pasta salad for a school picnic. Each container held the same number of ounces of salad. Students
tester [92]

Answer:

12 p - 8 p,  4p ( 3 - 2)

Step-by-step explanation:

p = equal the number of ounces of pasta salad in one container

then 12 × p = 12 p in 12 containers

the students finished the pasta salad in 8 containers which equals = 8 p

the number of ounces of pasta left = 12 p - 8 p  

b) using the distributive property for example a ( b + c) = ( a×b) + (a ×c)

12 p - 8 p = 4p ( 3 - 2)

6 0
3 years ago
Among the equation students taking a graduate statistics class, equation are master students and the other equation are doctoria
OleMash [197]

Answer:

a) P=0.2861

b) P=0.0954

c) P=0.3815

d) P=0.6185

Step-by-step explanation:

The question is incomplete:

<em>Among the N=16 students taking a graduate statistics class, A=10 are master students and the other N-A=6 are doctorial students. A random sample of n=5 students is going to be selected to work on a class project. Use X to denote the number of master students in the sample. Keep at least 4 decimal digits if the result has more decimal digits. </em>

<em> </em>

<em>a) The probability that exactly 4 master students are in the sample is closest to? </em>

<em> b) The probability that all 5 students in the sample are master students is closest to? </em>

<em> c) The probability that at least 4 students in the sample are master students is closest to? </em>

<em> d) The probability that at most 3 students in the sample are master students is closest to?</em>

<em />

We use a binomial distribution with n=5, with p=10/16=0.625 (proportion of master students).

a)

P(k=4)=\binom{5}{4}p^4q^1=5*0.625^4*0.375=5*0.1526*0.3750\\\\P(k=4)=0.2861

b)

P(k=5)=\binom{5}{5}p^5q^0=1*0.625^5*1=\\\\P(k=4)=0.0954

c)

P(k\geq4)=P(k=4)+P(k=5)=0.2861+0.0954=0.3815

d)

P(k\leq3)=1-P(x\geq4)=1-0.3815=0.6185

7 0
4 years ago
After eating at the restaurant, Tim, Keith, and Alyssa decided to divide the bill evenly. If each person paid 33 dollars, what w
diamong [38]
The total money of the bill in total is $99.
6 0
3 years ago
Emilio borrows $1200 from a bank with 7.5% simple interest per year. How much will he have to pay back total in 4 years?
seropon [69]

Answer:

1560

Step-by-step explanation:

1200*0.075 = 90

1200+90+90+90+90

4 0
3 years ago
Read 2 more answers
Find the equation of the line.
zhuklara [117]

Answer:

y=-1/3x-2

Step-by-step explanation:

First off, lets outline that parallel lines have the <u>Same Slope</u>. So we can plug in -1/3 as our slope, or m.

Lets plug in -1/3 as our slope in Point Slope form to find the y intercept. Point slope form should be attached in an image below.

1) Plug slope and points into point slope form:

y+1=-1/3(x+3)

2) Distribute -1/3 to x and 3:

y+1=-1/3x-1

3) Subtract 1 from both sides:

y=-1/3x-2

Now we have our answer is slope intercept form!

Please let me know if you have any questions :)

3 0
3 years ago
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