Answer:
-8y +7x
Step-by-step explanation:
(–3y – x) – (5y – 8x)Distribute
-3y -x -5y +8x
Combine like terms
-3y-5y -x+8x
-8y +7x
Three people take 2 1⁄2( two and a half ) hours to deliver leaflets to 270 houses
Assuming all people deliver leaflets at the same rate, how long will it take five people to deliver leaflets to 450 houses?
Give your answer in hours and minutes
9514 1404 393
Answer:
2 hours 30 minutes
Step-by-step explanation:
Effort is measured in people-hours per house. Here, the effort to deliver one leaflet is ...
(3 people)(2.5 hours)/(270 houses) = 1/36 people-hours/house
Then the number of hours (h) for 5 people and 450 houses is ...
(5 people)(h hours)/(450 houses) = 1/36 people-hours/house
h = (1/36)(450/5) = 2.5
It will take 2 hours 30 minutes to deliver to 450 houses.
_____
Alternate solution
The time is (assumed) inversely proportional to the number of people, so increasing the number of people from 3 to 5 multiplies the time by 3/5. The time is proportional to the number of houses, so increasing the number of houses from 270 to 450 multiplies the time by 450/270 = 5/3. The time for the second task is (3/5)(5/3) = 1 times the time for the first task.
2 1/2 hours is 2 hours 30 minutes.
Find x in each triangle.
Answer:
it is 3.4 cm
Step-by-step explanation:
by phythagorous teorm
3 square +1.6 square=x square
11.56=x square
then x =radical 11.56 =3.4 cm
Show that area under multivariate normal distribution over the whole range in unity. Find characteristics function of multivariate normal distribution and mean and variance of multivariate normal distribution. Differentiate between univariate and multivariate normal distribution and their practical applications. Also explain characteristic function, its application and differentiate between mean and variance of univariate and multivariate normal distribution with help of some practical examples
Answer:
here is the answer
Step-by-step explanation:
you may please search it
Task 1
Nonlinear Systems of Equations
Create a system of equations that includes one linear equation and one quadratic equation.
Part 1. Show all work in solving your system of equations algebraically.
Part 2. Graph your system of equations and show the solution graphically to verify your solution.
Task 2
Polynomial Identities
Part 1. Pick a two-digit number greater than 25. Rewrite your two-digit number as a difference of two numbers. Show how to use the identity (x − y)2 = x2 − 2xy + y2 to square your number without using a calculator.
Part 2. Choose two values, a and b, each between 8 and 15. Show how to use the identity a3 + b3 = (a + b)(a2 − ab + b2) to calculate the sum of the cubes of your numbers without using a calculator.
Answer:
part 1 : y = x^2 + 3x + 5
y = x + 13
solution:
x^2 + 3x + 5 = x + 13
x^2 + 2x -8 = 0
(x+4)(x-2) = 0
x = -4 or x = 2
if x = -4, y = 9
if x = 2 , y = 15
part 2 : x^2 + 2x + 1 = 0
(x + 1)^2 = 0
x = -1
y = 1
task 2
part 1 : Let our two digit number be 26
Next, we rewrite it as a difference of two numbers
26=32-6
We want to square 26 using the identity:
In this case,
x=32
y=6
Substituting into the identity
plz make me brainliest
Need help with these questions
Answer:
Area = 31.5 units²
Step-by-step explanation:
Area of the triangle = ½ × base × height
base = 9
height = 7
Substitute
Area = ½ × 9 × 7
Area = ½ × 63
Area = 31.5 units²
15. Which graph shows - 3x + y = 8
first question
Answer:
Im sorry but i can't read it
Step-by-step explanation:
Select the correct answer.
29 points!! Kathy distributes jelly beans among her friends. Alia gets 42 fewer jelly beans than Kelly, who gets 33 jelly beans. How many jelly beans does Alia get?
A. 4^2 - 3^3
B. 3^3 + 4^2
C. 4 - 3^3
D. 3^3 - 4^2
E. 3^2 - 4^3
Answer:
Alia has 11 jelly beans.
Step-by-step explanation:
4^2= 163^3= 2727-16=11
What is the main problem with this introduction paragraph?
Games Games Games claims to have the best trade-in store.
Even though it was in great condition, I was given only $4 for it. Later, I
saw that you were selling used copies of the same game for $22. Is
this really fair to your customers?
A. The hook does not relate to the topic.
B. It includes opinions instead of just facts.
C. It does not restate the main points of the essay.
D. The thesis statement is unclear.
Answer:
french
Step-by-step explanation:
french
Answer:
D
Step-by-step explanation:
The thesis statement is unclear.
Used process of elimination and this introduction paragraph did not have a clear paragraph. Got it correct.
1 million =_____________ hundred thousand
Answer:
seriously,I think the answer is 10 hundred thousand
Step-by-step explanation:
10*100000=1000000
Need help!
Please explain your answer
k = (2,2)
L=(4,5)
first see the x-axis and then y-axis
O GEOMETRY, MEASUREMENT, DATA ANALYSIS
Metric conversion with decimal values: Two-step problem
A coral reef grows 0.17 m every week. How much does it grow in 13 weeks?
Write your answer in centimeters.
cm
X Х
5
?
Meters to centimeters
Answer:
It grows 221 centimeters in 13 weeks.
Step-by-step explanation:
Each meter has 100 centimeters.
A coral reef grows 0.17 m every week
So it grows 0.17*100 = 17 cm every week.
How much does it grow in 13 weeks?
17 cm every week for 13 weeks, so
17*13 = 221
It grows 221 centimeters in 13 weeks.
Write an equation in slope-intercept form for the line shown.
Answer:
this is the answer
Step-by-step explanation:
hope it helped!!!
Can someone help me pls
Answer:
x = 10 units
Step-by-step explanation:
By theorem,
Perpendicular drawn from the center to the chord of a circle, bisects the chord.
AB = BC = 6
In right triangle ΔCBD,
By applying Pythagoras theorem,
CD² = BC² + BD²
= 6² + 8²
CD = [tex]\sqrt{36+64}[/tex]
= 10
Since, CD and the side measuring x are the radii of the circle D.
x = CD = 10 units
What point's coordinates will not change signs whether it is reflected over the x-axis or the y-axls?
Answer:
The origin (0,0)
Step-by-step explanation:
Is this a Percent Increase or Decrease Problem?
Shaleka had a 10%-off coupon and paid $36 for pair of
jeans.
Answer:
Percent Decrease
Please mark as brainliest for further answers :)
–25(15 – 20d + 5c)
help please
Answer:
-375 + 500d - 125c
Step-by-step explanation:
Multiply everything by -25. Also keep in mind that 2 negatives make a positive. You can't simplify any further since each numbers have different variables.
Answer:
Step-by-step explanation:
-375 + 500d - 125c
Hope that helps! :)
The dot plot below shows how many campsites have each number of campers.
What is the mean absolute deviation of the data set shown?
Plezz help :(
Answer:
1
Step-by-step explanation:
The answer is 1.
Answer: The answer is 1 100%
Step-by-step explanation: i took the test
Use the net as an aid to compute the surface area of a triangle pyramid with an equilateral triangle base
Answer:
106 ft 2
Step-by-step explanation:
Answer:
323 in
Step-by-step explanation:
What is the factorization of the expression below?
4x^2-9y^2
O A. (2x - 3)(2x + 3y)
B. (2x-3y)(2x-3y)
O C. (4x - 3y)(x + 3y)
D. (4x-3y)(x-3y)
Answer:
answer will be A. (2x-3)(2x+3y)
Please help ASAP! Which answer choice is it???
Answer:
Choice A
Step-by-step explanation:
You can rule out choices B and D because they do not have 6 sides which your prism does. You can forget about C being correct because it doesn't have 4 long sides.
Answer:
A is the best answer
Step-by-step explanation:
it has four sides
Six friends arrive at a party their arrival increases the number of people at the party by 20% in total how many people are now at the party
Answer:
Step-by-step explanation:
A mason gets $684 for 9 days
of work how many days
should he work to get $912
Answer:
12days
Step-by-step explanation:
A mason gets 76 dollars per day. To get 912 dollars, divide 912 by 76. 12days.
Answer:
12 days
Step-by-step explanation:
912/76 = 12
What is the area? Write the answer
Answer:
the answer to the question is 179/25
If the height of a cylinder is tripled, but the area of the base stays the same, what happens to the volume? The volume is four times greater. The volume triples. The volume is nine times greater. The volume doubles.
Answer:
I gotchu
Step-by-step explanation:
The volume triples
Odysyware
Answer:
The volume triples
Step-by-step explanation:
i got 100% on quiz for odysseywa
What type of angles are A and B?
Answer:
supplementary angles
Step-by-step explanation:
Answer:
supplementary
they are also adjacent
they also form a 'straight angle'
they can also be termed as a 'linear pair'
Step-by-step explanation:
- A statistical question is answered by a distribution of results.
?
True or false
First answer gets brainest. 8th grade math root question
Answer:
9
Step-by-step explanation:
Answer: 9
Step-by-step explanation:
Square Rooting is basically going down to the origins of the number, trying to figure out what times (x) would give you your current number. In order it get 81, you would need to do 9*9, therefore making the square root 9
Your company paid a dividend of $2.00 last year. The growth rate is expected to be 4 percent for 1 year, 5 percent the next year, then 6 percent for the following year, and then the growth rate is expected to be a constant 7 percent thereafter. The required rate of return on equity (ks) is 10 percent. What is the current stock price?
Answer: Calculation of the dividends:- Year 1 = 2 * (1.04) = $ 2.08 Year 2 = 2.08 * (1.05) = $ 2.184 Year 3 = $ 2.184 * (1.06) = $ 2.31504 Year 4 = $ 2.31
3. Solve - 3/5t = 15
O t = 25
O t = -25
O t = 15
O t = -15
PLEASE HURRY ILL GIVE 10 POINTS AND BRAINLYEST
Answer:
t= - 15
Step-by-step explanation:
(-3/5)t = 15
Multiply both sides by 5:
-3t=75
Divid both sides by -3:
t=-15
A manufacturer claims that a particular automobile model will get 50 miles per gallon on the highway. The researchers at a consumer-oriented magazine believe that this claim is high and plan a test with a simple random sample of 25 cars. What should the researchers conclude if the sample mean is 49 miles per gallon with standard deviation 2.3 miles per gallon
Answer:
Following are the responses to the given question:
Step-by-step explanation:
Given values:
[tex]The \ population\ mean(\bar{x})=50\\\\The \ sample \ mean, \mu =49\\\\standard \ deviation, \sigma =2.3\\\\ (n)=25\\\\null, H_o :\ \mu=50\\\\alternate, H_1 :\ \mu<50\\\\ testing \ the \ statistic (t) = \frac{\bar{x}-\mu}{\frac{\sigma}{\sqrt(n)}}\\\\to = \frac{49-50}{\frac{2.3}{\sqrt{25}}}\\\\to =-2.1739\\\\| to | =2.1739\\\\p-value\ :left \ tail - H_a : (p < -2.1739 )=0.0199\\\\null, H_o: \ \mu=50\\\\alternate, H_1: \ \mu<50\\\\test \ statistic: \ -2.1739\\\\p-value: 0.0199 \sim 0.02\\\\[/tex]
Therefore, the 0.02 p-value is sufficient proof to reject the claim form of the manufacturer.