Directions: Evaluate each rational expression using the indicated values of the variable.
1. [tex] \frac{5x}{2y} [/tex]
a. when x = 8 and y = 10
b. when x = 1/2 and y = 2/3
2. [tex] \frac{ {ab}^{3} }{c} [/tex]
a. when a = 4, b = 3, and c = 2
b. when a = -2, b= -2, and c = 2
3. [tex] \frac{e \: + \: 5}{4f \: - \: 4} [/tex]
a. when e = 11 and f = 7
b. when e = -1 and f = -4
Pls answer it perfectly, so there will be no reported answers, thank u :)
Answers
Answer:
[tex]1) \: \: \frac{5x}{2y} \\ a) \: \: x = 8 \: \: and \: \: y = 10 \\ \frac{5x}{2y} \\ \frac{5(8)}{2(10)} \\ \frac{40}{20} \\ 2 \: ans \\ b) \: \: \frac{5x}{2y} \\ \frac{5( \frac{1}{2}) }{2( \frac{2}{3}) } \\ \frac{2.5}{1.3} \\ \frac{25}{13} \\ 1.92 \: \: ans \: \\ \\ 2) \: \: \frac{a {b}^{3} }{c} \\ \\ a) \: \: a = 4 \: .\: b = 3 \: . \: c = 2 \\ \\ \frac{a {b}^{3} }{c} \\ \frac{(4) {(3)}^{3} }{2} \\ \frac{4(27)}{2} \\ \frac{108}{2} \\ 54 \: \: ans \: \\ \\ b) \: \: a = - 2 \: . \: b = - 2 \: . \: c = 2 \\ \\ \frac{a {b}^{3} }{c} \\ \frac{( - 2) {( - 2)}^{3} }{2} \\ \frac{ - 2 { (- 2)}^{3} }{2} \\ \frac{ - 2( - 8)}{2} \\ \frac{16}{2} \\ 8 \: \: ans \: [/tex]
Step-by-step explanation:
question 3 is already answered by me in your question..or you can see attachment.
![Directions: Evaluate Each Rational Expression Using The Indicated Values Of The Variable.1. [tex] \frac{5x}{2y}](https://brainimage.s3.us-east-005.backblazeb2.com/answers/attachments/AKMwdSaoFZqMCm16aqti3qMOiX3qLXmX.jpeg)
![Directions: Evaluate Each Rational Expression Using The Indicated Values Of The Variable.1. [tex] \frac{5x}{2y}](https://brainimage.s3.us-east-005.backblazeb2.com/answers/attachments/o9YFyZrdVamCHpaNPHxWPTxA1BPNIk3Z.jpeg)
Related Questions
A good first
step to solve
4(X-9)=36
would be
to
Answers
Answer:
Use the distriputive property which would give you:
4x-36=36
Step-by-step explanation:
Which statement represents the biconditional statement of the conditional statements?
If an angle measures 90º, then the angle is right.
If an angle is right, then the angle measures 90º
1) An angle measures 90º if and only if the angle is right.
2) An angle does not measure 90º if and only if the angle is right.
3) An angle does not measure 90º if and only if the angle is not right.
4) An angle measures 90º if and only if the angle is not right.
Answers
Answer:
1
Step-by-step explanation:
It is the only one that makes sense!
(Apologies since this super late; I hope future students will find this helpful)
Answer:
An angle measures 90º if and only if the angle is right.
Step-by-step explanation:
See the image below :)
5%x52?524526235+36285
Answers
Answer:
The answer is 7,878,684,378
LOL
Step-by-step explanation:
NEED HELP ASAPfind the missing number and fill in the blank to make it true35 + ?? = 7(5 + 3)
Answers
Answer:
x = 21
Step-by-step explanation:
35 + ?? = 7(5 + 3)
1. Expand the brackets on the right:
35 + x = 35 + 21
2. Cancel out 35 from both sides
x = 21
Finding the nth term of this sequence: (by the way I'm learning quadratic sequences=
-2 -8 -18 -32 -50
Answers
Answer:
n^2+2n+1
Step-by-step explanation:
-2-8-18-32-50
difference=-6-10-14-18
common differences=-4-4-4-4-4
-2-8-18-32-50
n^2=1,4,9,16,25
minus it
=-1,-4,-9,-16,-25
differences 2,5,7,9
common differences=2
2,4,6,8
so 2n+1
so the answer is n^2+2n+1
why there is 60 minutes in a hour ?
▪︎no need spams
▪︎ans should be well explained
▪︎if u don't know pls don't ans
Answers
Answer:
Time is not measured in metric units. By the way - The metric system dates back to the late 18th century. Thousands of years after people measured time in multiples of 60.
What is the slope of the line that passes through the points (−8,−1) and (−6,−2)? Write your answer in simplest form.
Answers
Answer:
m = -1/2
Step-by-step explanation:
Recall that slope = (change in y) / (change in x).
Going from (−8,−1) to (−6,−2), x increases by 2 (because -6 - (-8) = 2), and
y decreases by 1. Thus, the slope here is
m = (change in y) / (change in x) = (-1) / 2 = -1 / 2
m = -1/2
solve the matrix equation
Answers
Answer:
c
Step-by-step explanation:
The Budget Car Rental rates for renting a car for a day is shown in the table.
Answers
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
According to given information,
a.) Initial cost of renting car (y - intercept (b)) = the total cost when the distance travelled = 0
that is :
blank - 1 : $ 100b.) rate of change = slope
[tex] \dfrac{y2 - y1}{x2 - x1} [/tex][tex] \dfrac{105 - 100}{100 - 0} [/tex][tex] \dfrac{5}{100} [/tex][tex] \dfrac{1}{20} [/tex]blank - 2 : [tex]\dfrac{1}{20}[/tex]c.) Let's
[tex]y = mx + c[/tex]and according to above data :
y = Cx = dm = 1/20c = 100so, the required equation is :
[tex]c = \dfrac{1}{20} d + 100[/tex]put this equation in blank - 3 ~
there were a total of 35 football games in the season the season is played for five months how many football games were played each month if each month has the same number of games
Answers
Answer:
7
Step-by-step explanation:
35/5=7
Hope this helps!
Answer: We know that there is 35 games per season and is played throughout 5 months. If in each month the same number of games were played we would have to do 35/5 which is equal to 7. To check your work you can do 5 times 7 which is 35. Remeber opposite of division is multiplication and opposite of multiplication is division. SO, your answer is 7 football games per month.
Step-by-step explanation:
Hope this helps, if you are struggling with math you can use these sites:
khan academy
math nation
and many more free sites to learn math!
PLEASE SOMEONE JUST Please ANSWER THIS THIS IS DUE IN 10 MINUTES HURRY!!!
What is the slope of the graph?
Answers
2
Step-by-step explanation:
rise/run = 4/2 = 2
Answer: The slope is 2.
Step-by-step explanation:
Hope this helps!!!!
PLEASE PLEASE HELP ASAP
Answers
Rosie Belin worked these total weekly hours in four weeks of work: 45, 38, 42, and 43. Her job pays $14 for each hour worked. What AVERAGE gross pay did she earn per week for these four weeks of work?
Answers
Answer:
Add the total number of hours in the four weeks and multiply that with the hourly pay rate to find the total gross pay. Divide the total gross pay by 4 to find the weekly average gross pay. An employee may earn income from various sources. The total income is the sum of all the earnings and is called as.
=727
A recent report found that a local creamery has a 35% market share in a certain region. Employees in the marketing
department of the creamery conduct a survey to confirm the results by randomly selecting 300 residents from the regon
The employees asked the question which brand of ice cream do you usually purchase to each resident Use a normal
approximation to calculate the probability that at most 80 of these people will choose the creamery's brand. Use a T1-83,
83 plus, or T-34 calculator to find the probability
- Round your answer to four decimal places
Answers
Using the normal approximation to the binomial, it is found that there is a 0.0015 = 0.15% probability that at most 80 of these people will choose the creamery's brand.
In a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
It measures how many standard deviations the measure is from the mean. After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.The binomial distribution is the probability of x successes on n trials, with p probability of a success on each trial. It can be approximated to the normal distribution with [tex]\mu = np, \sigma = \sqrt{np(1-p)}[/tex].In this problem:
35% market share, hence [tex]p = 0.35[/tex].300 residents are surveyed, hence [tex]n = 300[/tex].The mean and the standard deviation are given by:
[tex]\mu = np = 300(0.35) = 105[/tex]
[tex]\sigma = \sqrt{np(1-p)} = \sqrt{300(0.35)(0.65)} = 8.26[/tex]
Using continuity correction, the probability that at most 80 of these people will choose the creamery's brand is [tex]P(X \leq 80 + 0.5) = P(X \leq 80.5)[/tex], which is the p-value of Z when X = 80.5, thus:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{80.5 - 105}{8.26}[/tex]
[tex]Z = -2.97[/tex]
[tex]Z = -2.97[/tex] has a p-value of 0.0015.
0.0015 = 0.15% probability that at most 80 of these people will choose the creamery's brand.
A similar problem is given at https://brainly.com/question/25298431
slope=0, goes through the point (-3,3)
Answers
Answer:
y=3
Step-by-step explanation:
Using the point slope formula
y-y1 = m(x-x1)
where m is the slope and (x1,y1) is a point on the line
y-3 = 0(x--3)
y-3 = 0(x+3)
y-3 =0
y-3+3 = 0+3
y=3
Will offer 50 points for answer
Math question in the image
Answers
Answer:
The answer is 1, Hope that Helps! :)
Step-by-step explanation:
I answered first but didn't get braintlyist...ok.....
Answer:
the answer is 1
Step-by-step explanation:
one is the answer
Find the sum of -8x^2+3 and -9x^2+3x-3
Answers
Answer:
-16x, and 3(x−28)
Step-by-step explanation:
-8x^2+3=-16,
Multiply 2 times −8.
which should get you −16x^2−1
Subtract 1 from 2, then you have −16x^1. For any term t, t ^1=t. so then it is -16x.
−9 ^2+3x−3
Calculate 9 to the power of 2 and get 81.
−81+3x−3
Subtract 3 from −81 to get −84.
=−84+3x
and if you need help with algebra https://mathsolver.microsoft.com/ will help!
If 0° < θ < 90° find θ to the nearest minute:
sinθ= 0.5
Answers
Answer:
the angle must be 30 degree. because the value of sin30 is ½ and this means 0.5
please help me or I'm gonna fail math
Answers
Answer:
length = x+6
width = x-6
Step-by-step explanation:
The area of rectangle is:
[tex] \displaystyle \large{ A= l \times w}[/tex]
where A is area, l is length and w is width.
We know the area of this rectangle or table since we are given A = x^2-36.
First, substitute A = x^2-36 in.
[tex] \displaystyle \large{ {x}^{2} - 36 = lw}[/tex]
Then we factor x^2-36, use the difference of two squares:
[tex] \displaystyle \large{ (x + 6)(x - 6) = lw}[/tex]
Compare the terms.
First, we have to understand that length is always longer or greater or have more values than width.
Hence length cannot be x-6 and width cannot be x+6 either.
Thus:
[tex] \displaystyle \large{length = x + 6} \\ \displaystyle \large{width = x - 6}[/tex]
a person buys 6 bags of chips for 18 dollars. How much is it per bag
Answers
Answer:
hope it helps you..........
Help- 50 Points.
The question is put down below in the attachments.
Answers
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
The graph representing the given function is B
[tex]f(x) = \dfrac{1}{2} x - 5[/tex]The equation is in the form y = mx + b
The slope (rise over run) is m so it’s 1/2 so the rise is 1 and run is 2.
The y intercept is b, which is -5. The graph intersects y at -5.
someone please help me giving brainliest
Answers
Answer:
Step-by-step explanation:
please help. i’ll give 20 pt + brainliest.
help with 16 and 17
Answers
Answer:
qno 16= 1/2
qno17 = 417 are the answers........
3 1/4 divided by 5 1/3
Answers
Answer:
0.609375 or 39/64
decimal ------- fraction
Step-by-step explanation:
Mega Mart received 1,447 fish. The store's manager put 76 fish into each of the store's aquariums. Then he purchased the remaining 3fish for his own aquarium. How many aquariums does Mega Mart have?
Answers
Answer:
19
Step-by-step explanation:
1447-3=1444, 1444/76=19
Hope that helps!
All cross-sectional shapes that are parallel or perpendicular to one of the
bases of a?
are also congruent to one another.
A. cube
B. polygon
C. prisma
D. pyramid
Answers
All cross-sectional shapes that are parallel or perpendicular to one of the bases of a Cube.
What is cross-section?A cross section in mathematics is the illustration of the intersection of an entity by a plane.
In a cube, all the faces which is parallel or perpendicular to one of the faces are congruent to one another.
So, out of all cross-sectional shapes that are parallel or perpendicular to one of the bases of a Cube, are also congruent to one another.
Hence, the cross-sectional shapes that are parallel or perpendicular to one of the bases of a Cube.
Learn more about cross-sections, click;
https://brainly.com/question/15541891
#SPJ5
A graphics company charges $50 per hour to create a logo plus $250 for the ownership rights of the logo. A private contractor charges $75 per hour to develop a logo plus a $100 supply fee.
Which equation can be solved to determine x, the number of hours after which the costs would be the same?
50x + 250 = 75x + 100
Answers
Anwer:
x=6
Step-by-Step Explaination:
My friend needs help!
Answers
[tex] \frac{840}{1200} = 0.7 = \frac{7}{10} [/tex]
So, option (c) will be correct
Cheerio :)
1.Find the rate in the unit given, 78 liters in 2 hours (liters per hour) ?
Answers
hope it helps you
can you brainlest me
Can someone tell me the answer to this
Answer choice D is incorrect
Answers
Answer:
A
Step-by-step explanation:
It's going to get smaller