Answer:
Let B(a,b) be x1, y1
A(-6,1) be x2,y2
midpoint M(-3,2) be (x,y)
using midpoint formula
(x,y)= [(x1+x2)/2, (y1+y2)/2)
(-3,2) = [(a-6)/2, (b+1)/2}
comparing corresponding value
-3 = (a-6)/2 (b+1)/2 = 2
-6= a-6 b+1=4
a=0 b=3
coordinates of B = (0,3)
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
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
how would i simplify this?
znajdź wszystkie rozwiązania
x^4-16=0
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]
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]
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.
Corporate bonds from Dagofi Radar are selling at 88.354, bonds from Chambers Translation are selling at 112.894,
and bonds from Essentia Inc. are selling at 96.262. If Roger wants to buy two bonds with a par value of $1,000 each
from Dagofi Radar, five bonds with a par value of $500 each from Chambers Translation, and four bonds with a par
value of $1,000 each from Essentia Inc., how much can he expect to spend?
a. $8,439.91
b. $8,500.00
C. $2,975.10
d. $9,343.97
Answer:
(A) $8,439.91
Step-by-step explanation:
Just took test
Solve for n. 2n − 35=5
Answer:
n = 20
Step-by-step explanation:
2n − 35 = 5
find: n
2n = 5 + 35
n = 40 / 2
n = 20
Chris has 5 1/2cups of water in a pitcher. He pours 3/8 cup of water into a glass. How many cups of water is left in the pitcher? Enter your answer in the box as a mixed number in simplist form?
Answer: The Answer is 5 1/8.
Step-by-step explanation:
The ratio of pennies to dimes is 3:5. If there are 15 dimes how many pennies are there?
Answer:
9
Step-by-step explanation:
Step 1:
3 : 5 = x : 15
Step 2:
5x = 45
Answer:
x = 9
Hope This Helps :)
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
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
the difference of -9 and -6?
Answer:
15
Step-by-step explanation:
-9+9=0+6
9+6=15
That is the answer i think so
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.
132891 round the nerast hundred
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
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.
Stop & Shop is having a sale on paper towels: 5 rolls for $3. How much will 7 roll(s) cost?
Answer:
4.2 rightttttrttr or no
You are holding a gift, that has a mass of 9.5 kg. Calculate the weight of the gift,
Answer:
93.1 N (Newtons)
Step-by-step explanation:
I know it is hard for you to understand this question, so ill make it as easy as possible.
There's a difference between mass and weight
Mass is the amount of matter while WEIGHT IS THE AMOUNT OF FORCE EARTH ATTRACTS AN OBJECT TO ITS CENTER. That means that we have to calculate the weight.
The formula for that is:
Force = Mass * gravitational constant
Here, the gravitational constant means the acceleration at which earth attracts an object to itself. The value of gravitational constant is normally taken as '9.8m/s²' if the value is not given. If it is then replace the given value and calculate the answer.
Ok so heres the equation:
F= 9.5 kg x 9.8 ms
F= 93.1 N
I know it took too long to explain, but it was needed because I could see that you were confused between mass and weight
+ if u think the anwer is good so plz mark it the branliest uwu
It takes 3 men 5 hours to repair a road. How long will it take 5 men to do the job if they work at the same rate?
hours
Answer:
8 hours and 1 min
Step-by-step explanation:
3men=5hours
5men=x
cross multiply
5x5=3x
25=3x
divide both side by 3
x=8hrs and 1 min
give 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.
The distance around the outside of a building is 0.5 mile. Eli biked 0.72 of the distance during his free period. How far did he bike?
Answer:
0.36 miles
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
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.
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 |=3.4how 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.
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
S = 4LW + 2WH; S = 168, L = 8, W = 4
H=
Answer:
h=5
Step-by-step explanation: