Answer:
1 and 1/2
Step-by-step explanation:
Dividing two fractions is the same as multiplying the first fraction by the reciprocal (inverse) of the second fraction.
1.5 as a decimal
1 1/2 as a fraction
Rural and urban students are equally
likely to get admission in a college. If 100
students get admission, then the probability
that more rural students get admission than
urban students is
Answer:
The answer is below
Step-by-step explanation:
Using binomial probability:
p = probability of a rural student getting admission = 1/2
q = probability of a rural student not getting admission = 1/2
n = number of students = 100
P(x) = [tex]C(n,x) p^xq^{(n-x)[/tex]
But [tex]p^xq^{n-x}=\frac{1}{2}^x\frac{1}{2}^{n-x}=\frac{1}{2}^{n}[/tex]
P(x > 50) = P(x = 51) + P(x = 52) + P(x = 53) + . . . + P(x = 100)
P(x > 50) = [tex]\frac{1}{2} ^{100}[C(100,51)+C(100,52)+C(100,53)+\ .\ .\ .+C(100,100)]\\[/tex]
[tex]P(x>50)=\frac{1}{2}^{100} (\frac{1}{2}( 2^{100}-C(100,50)))\\\\P(x>50)=(\frac{1}{2}^{100} *\frac{1}{2}*2^{100})- (\frac{1}{2}^{100} *\frac{1}{2}*C(100,50))\\\\P(x>50)=\frac{1}{2}[(2^{-100}*2^{100})-(\frac{1}{2}^{100} *C(100,50))]\\ \\P(x>50)=\frac{1}{2}[1-\frac{1}{2}^{100} *C(100,50)][/tex]
how do you multiply a fraction with a mixed number
Answer: Covert the mixed number to an improper fraction for them to be too simple fractions and multiply them.
Step-by-step explanation:
By multiply fraction by a mixed fraction you will have to rewrite the mixed number as an improper fraction.
For example ,
1 1/2 is a mixed fraction. If you convert it to improper fraction, you will get 3/2 then you multiply.
how would i simplify this?
The American Auto Association reports that the mean price per gallon of regular gasoline is $3.10, with a population standard deviation of $0.20. Assume a random sample of 16 gasoline stations is selected and their mean cost for regular gasoline is computed. What is the likelihood the sample mean is greater than $3.08
Answer:
0.65542
Step-by-step explanation:
The formula for calculating a z-score when a random sample is selected is is z = (x-μ)/standard error
where
x is the raw score
μ is the population mean
Standard error = σ/√n
σ is the population standard deviation.
n = randomly selected sample
z = (x-μ)/standard error
z = (3.08 - 3.10) / 0.20/ √16
= -0.02/0.2/4
= -0.02/0.05
= - 0.4
Determining the Probability value from Z-Table:
P(x≤ 3.08) = P(<3.08)
P (z = -0.4)
= 0.34458
P(x>3.08) = 1 - P(x<3.08)
1 - 0.34458
= 0.65542
Therefore, the likelihood the sample mean is greater than $3.08 is 0.65542
What is the scale factor from Figure 1 to Figure 2?
Find the particular solution to ty''-(1+t)y'+y=t^2e^t.
Complete Question
Find a particular solution to [tex]ty''-(1+t)y'+y=t^2e^t , t > 0[/tex]
[tex]y_1 = 1 + t , \ y_2 = e^t[/tex]
Answer:
The solution is [tex]y_p = -e^{2t} + t + \frac{3t^2}{2} + \frac{t^3}{2}[/tex]
Step-by-step explanation:
Now the given equation is [tex]ty''-(1+t)y'+y=t^2e^t , t > 0[/tex]
dividing through by t
We have
[tex]y'' - \frac{1 + t }{t}y' + \frac{1}{t} y = te^t \\\\ let's\ call\ it \ g(t)[/tex]
Now for the given initial value we can generate our Wronskian as follows
[tex]W(y_1 ,y_2) = | \left y_1} \atop {y_1'}} \right. \left y_2} \atop {y_2'}} \right | = | \left {(1 + t)} \atop {1}} \right. \left e^t} \atop {e^t}} \right | = (1 + t )e^t - e^t = te^t[/tex]
Now applying method of variation of parameters to obtain the particular solution
So here we assume that
[tex]y_p = v_1 y_1 + v_2 y_2[/tex]
So
[tex]v_1 = - \int\limits {\frac{y_2 (t) g(t)}{W(t)} } \, dt = - \int\limits {\frac{e^t te^t}{te^t} } = - \int\limits { e^t} } = -e^t[/tex]
And
[tex]v_2 = - \int\limits {\frac{y_1 (t) g(t)}{W(t)} } \, dt = - \int\limits {\frac{(1 + t) te^t}{te^t} } = - \int\limits (1 + t) = t + \frac{t^2}{2}[/tex]
So
[tex]y_p = -e^t * e^t + t + \frac{t^2}{2} * 1 + t[/tex]
[tex]y_p = -e^{2t} + t + \frac{3t^2}{2} + \frac{t^3}{2}[/tex]
Which of the following estimates at a 95% confidence level most likely comes from a small sample?
Answer:
we would need the answer choices to reply
21 +3+ (3 x 9) * 9+5
Answer:
272
Step-by-step explanation:
Do you need this?
Answer:
272
Step-by-step explanation:
Which statement is true about this equation? y=-3x^2+4x-11 A. It represents a function only. B. It represents both a relation and a function. C. It represents a relation only. D. It represents neither a relation nor a function.
Answer:
For plato users, the answer would be letter C.
Step-by-step explanation:
A.
It represents neither a relation nor a function.
B.
It represents a relation only.
C.
It represents both a relation and a function.
D.
It represents a function only.
This equation represents both a relation and a function.
Took the test, hope this helps!
B. It represents both a relation and a function.
Is every relation also a function?Note that both functions and relations are defined as sets of lists. In fact, every function is a relation. However, not every relationship is a function. In a function, there cannot be two lists that disagree on only the last element.
Which graph of a relation is also a function?Given the graph of a relation, if you can draw a vertical line that crosses the graph in more than one place, then the relation is not a function. This is a function. Any vertical line will cross this graph at only one point.
Learn more about function here: https://brainly.com/question/6561461
#SPJ2
Your checking account is in debt at $20. You use this account to make a $10 purchase. Then, you deposit $38 into the account. What is the balance of the checking account?
Answer:
$8
Step-by-step explanation:
In debt at $20 (like an overdraft) = -20
To make a $10 purchase = -10 on the account
Total debt = -20 + (-10)
= -30
You deposit $38 (this is what you added to your account.) = +38
Balance of the checking = -30 + (+38)
= $8
I really hope this helps. If I am right, please thank, rate 5 stars, and give brainliest. Thank you.
which measurement is closest to the area of a circle with a circumference of 24 centimeters
Answer: 144π or 452.389342117
Step-by-step explanation:
24= circumference
c=dπ
c=24π
24/2=12
12=radius
12^2π=area
144π=area
Is this correct? Please let me know
Answer:
Step-by-step explanation:
i think yes
What is the absolute value of 3.4? A) 3.4 B) -3.4 C) -34 D) -4
The absolute value of 3.4 = 3.4
The absolute value of something is always positive.
The answer is A
Answer: A. 3.4
Step-by-step explanation:
Concept:
Absolute value is the distance from a number to zero. Distance is always positive, so absolute value of any number is positive. Absolute value is often written as ( |x| ).
| -3 |=3, the distance from -3 to 0 is 3 units| 3 |=3, the distance from 3 to 0 is 3 unitsSolve:
| 3.4 |=3.4give an example to show that subtraction does not follow the associative rule
(6 - 2) - 1 = 4 - 1 = 3
6 - (2 - 1) = 6 - 1 = 5
The associative rule doesn't work for subtraction because you get different results when you move the parentheses.
by ignoring your real intersets when choosing a career,you risk spending your work life feeling bored, and dissatisfied.
A. intrigued
B. content
C. elated
D. frustrasted
Answer: D because it would mess with your feelings
I would put the answer as D.
what is 70-30+12 then divided by 20
Answer:
2.6
Step-by-step explanation:
First you subtract and get 40 and then you add the 12 which gets 52 and then you divide it by 20 and get your 2.6
Answer:
Step-by-step explanation:
40.6 hope it helps
Solve the equation.
1/4x-9=3/8x
Select the correct choice below and fill in any answer boxes in your choice.
A. The solution set is . (Simplify your answer.)
B. There is no solution.
Hope you liked that.
11-3(a-2)=27 HELP PLZ
Answer:
a==3.3 a=-3 1/3 a=-10/3
all of those are different possible answers
Step-by-step explanation:
Brian can type 1 and one-third pages every 20 minutes. How many pages can he type in 2.5 hours? 7.5 pages 10 pages 22.5 pages 200 pages
Answer:
10 pages
Step-by-step explanation:
1 and 1/3 pages multiplies by 7.5 brings us to the answer of ten pages
20 minutes goes into 2 and 1/2 hours 7.5 times
10 pages i did this on edge
2020 hope this helps
your welcome =)
which property is illustrated?
3. (8 + 0) = 3.8
Michael spent $18 at a local farmers’ market. Apples cost $2 each and peppers cost $3 each. Select the equation that represents the scenario. O) p = 2a + 3a + 18 O) 2a + 3a = 18p O) 2p + 3a = 18 O) 2a + 3p = 18
Answer:
its B, C and E
Step-by-step explanation:
on edge
Answer:
2a + 3p = 18
Step-by-step explanation:
The total has to equal 18 so then you have $2 and $3. Apples cost $2 so the 2 should have an a for Apples. The peppers cost $3 so the 3 should have a p for peppers. So the equation would be 2a + 3p = 18.
S = 4LW + 2WH; S = 168, L = 8, W = 4
H=
Answer:
h=5
Step-by-step explanation:
Please help I’d appreciate it so so so so much because I suck at math thank you! Ily
Answer:
the order of operations tells us how to solve a problem.
first is P for parentheses. this means you solve all the expressions within the parentheses. this ensures a simplified expression before moving on.
second is E for exponents. this means you solve all the expressions with exponents. by doing this before MDAS, you do not raise the wrong values.
third and fourth is M/D for multiplication/division. the / is between these two because these steps are interchangeable. you can multiply or divide first. the results will be the same.
this also applies to the fifth and sixth, which are A/S for addition/subtraction.
Which single transformation can be applied to the graph of y = 72Vx to produce the graph of y = 9Vx?
Answer:
Horizontal compression
Step-by-step explanation:
Just took a test
Answer: horizontal compression
Step-by-step explanation:
Edge
132891 round the nerast hundred
10. The weight of an object on a particular scale is 125.2 lbs. The measured weight
may vary from the actual weight by at most 0.4 lbs. What is the range of actual
weights of the object?
A. 124 8 2 x 2 125.6
B. 124.8 2 x 125.6
C. 124 8 5 x 125.6
D. XS 124.8 or x 21256
Given :
The weight of an object on a particular scale is 125.2 lbs.
The actual weight by at most 0.4 lbs.
To Find :
The range of actual weights of the object.
Solution :
It is given that uncertainty in weight is 0.4 lbs.
So, minimum weight can be( 125.2 -0.4 ) = 124.8 lbs.
Maximum weight is given by ( 125.2 + 0.4 ) = 125.6 lbs.
Therefore, the range of actual weights of the object is between :
124.8 x 125.6 .
Hence, this is the required solution.
MAYBE THIS IS EASY BUT I STILL DOMT GET IT :c
Answer:
What's the question???
Answer:
Cool can you give me brainliest
Step-by-step explanation:
find the product of (4m-n)and (3m-2n)
(4m - n)(3m - 2n)
12m^2 - 8mn - 3mn + 2n^2
Let's combine like terms
12m^2 - 11mn + 2n^2
Answer:
12m^2+2n^2-11mn
Step-by-step explanation:
(4m-n)(3m-2n)
=12m^2-8mn-3mn+2n^2
12m^2+2n^2-11mn
Find the missing length, X.
Find the missing length
X= [ ] in
33 in corresponds with the 11 in side
33 in / 11 in = 3
The scale factor is 3
24 in / 3 = 8 in
x = 8 in
Answer:
Step-by-step explanation:
In similar triangles, corresponding sides will be in same ratio.
[tex]\frac{33}{11}=\frac{24}{x}[/tex]
Cross multiply,
33*x = 24 * 11
[tex]x=\frac{24 *11}{33}\\\\x=\frac{24*1}{3}\\\\x = 8 in[/tex]
HELP What is the perimeter of this rectangle?
Answer:
7×2=14 (for the long side)5×2=10 (for the short sides) the you add up the two answers 14+10=24