1. Is the product of two rational numbers irrational or rational? First, make a hypothesis by multiplying two rational numbers. Then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.
2. What do you think the product of a nonzero rational number and an irrational number is? Is it rational or irrational? Make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.
3. Why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and irrational number is? If the rational number were 0, would it give us the same result we found in part B?
I WILL GIVE BRAINLIEST ANSWER TO SOMEONE WHO ACTUALLY ANSWER THE QUESTION THE RIGHT WAY
Answers
Answer:
irrational
Step-by-step explanation:
purple wolf
Related Questions
The original price of a coffee table is d dollars. You use a coupon and buy the table for (d − 4) dollars. You paint the table and sell it for (3d + 1) dollars. Write an expression that represents your earnings from buying and selling the coffee table. Interpret the expression
Answers
Answer:
hfbzhhsgxhxbggxvdvxggdvdbgx
Answer:
(3d+1)-(d-4)=Profit
Step-by-step explanation:
Help me please il give 20 points!
Answers
Answer: 1. a. 15 b. 11 c. 2 d. 7 e. 5.5
2. Stem: Leaf:
1 9
2 5, 9
3 3, 3, 8
4 0, 7, 9
5 4, 5
6 1, 5
7 2, 7
8 1
3. a. 13 inches b. I'm pretty sure that it is the second quarter because there is more snow. c. The first quarter because it's section is more spread out among the numbers.
Step-by-step explanation:
2. Stem:
Leaf:
9
2
5, 9
3
3, 3, 8
4
0, 7, 9
5
4, 5
6
1,5
7
2, 7
8
1
3. a. 13 inches
b. I'm pretty sure that it is
the second quarter because there is more show.
c. The first quarter because it's
section is more spread out among the numbers.
Step-by-step explanation:
The ratio of shells to driftwood Gus found is shown on the ratio table. Complete the ratio table to make an equivalent ratio.
Shells 9 36
Driftwood 3 ___
answer the missing number
Answers
Answer:3
Step-by-step explanation:
Answer:
12 ...I think I'm not too confident lol
Step-by-step explanation:
3 12
6 24
9 36
Which statement compares the fractions nine thirds and twelve sixths correctly?
nine thirds is greater than twelve sixths
nine thirds is less than twelve sixths
twelve sixths is equal to nine thirds
twelve sixths is greater than nine thirds
Answers
12/6 (or twelve sixths) is equal to 2.
3 > 2 so 9/3 is greater than 12/6
Nine thirds is greater than twelve sixths
Please explain your answer :D
don’t answer if you will not provide an explanation please :”)
Answers
Answer:
Step-by-step explanation:
QUESTION 7:
We are trying to find angles 1 and 2.
Known angle: 107˚.
In this question, we have 2 parallel lines with a transversal. A transversal is a line that passes through 2 parallel lines making it so that the angles on both sides are exactly the same.
Step 1: Find the measures of all the angles using the one we already know.
I will start with the angle adjacent (right next to) the angle that measures 107˚. As you can see, it is a supplementary angle because both of them form a straight line, or 180˚.
Therefore,
107+x= 180
x= 180-107
x= 73˚
Next, I will find the measure of the angle that is vertical to the one that measures 107˚. Note that angles that are vertical to each other are always identical, or in other words they have the same measure. Hence, the angle "vertical", or opposite to the one that measures 107˚ has to measure 107˚ as well. You can also tell this is true because they look the same.
Now I'll find the measure of the angle vertical to the one that measures 73˚. As we know, vertical angles are identical, so the one vertical to it is 73˚.
Here, I'll solve for angles 1 and 2. Like I said earlier, when a transversal crosses through 2 parallel lines, there will be 2 sets of angles that all have the same measurements.
To solve for angle 1, simply know what angle is right below it, and that is the one that measures 107˚. (If you look at the 2 lines, you will see that both angle sets are essentially duplicates of each other.) Likewise, angle 2 has to be 73˚ because the one under it is also 73˚.
Angle 1: 107˚
Angle 2: 73˚
QUESTION 8:
Again, we have a transversal that passes through 2 parallel lines. One angle measures 95˚. When there are 3 seperate angles along a straight line, the one next to the one with the given measurement will be the same as that one.
So angle 3 is 95˚. To find angle 4, find the angle measurement that's vertical to angle 3, which is 95˚. Now, since that angle and angle 4 are supplementary (both form a straight line which is always 180˚), 95+x= 180.
(x stands for angle 4)
x+95= 180
x= 180-95
x= 85
Angle 4= 85˚.
QUESTION 9:
ANGLE 5: 49˚
When there is a transversal, there are 2 identical pairs of angles. Therefore, angle 5 must be 49˚.
ANGLE 6: 131˚
angle 5 and angle 6 form a straight line which means they are supplementary angles. Therefore, both angles must add up to 180˚. So 49+x= 180
x= 180-49= 131
(x stands for angle 6)
Hope this helps!! Also I worked pretty hard on this so brainliest would be appreciated :D
Practice problems if it helps :) : https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-geometry/cc-8th-angles-between-lines/e/parallel_lines_1
What is the least common denominator for the fractions 16and34?
8
12
18
24
Answers
1.Selena is studying about a square with side x, and a rectangle whose length is
6 inches longer than that of the square but six inches shorter on the width. She then
concluded that the area of the rectangle is less than the area of the square. Do you
agree with Selena? Explain your answer.
2.Audrey weaved a blanket. The area of the blanket is 36x2 + 19x - 6 meters
while its length is 9x – 2 meters. Find the expression for the width of the blanket.
Answers
Answers:
1. No I don't agree with Selena because the area of the rectangle has the exact same area of the square
Step-by-step explanation:
1. square = x
rectangle length = 6 + x
rectangle width = x - 6
the plus 6 and minus 6 cancel each other out and make the same area that the square has.
Im sorry i dont know what the answe to 2 is.
100 points!!!!!!!!!!
A community has an empty field ready for development and plans to place a playground in the center. A model of the plan for the project is shown. A large rectangle with dimensions of 21 feet by 36 feet. Inside it is a smaller rectangle with dimensions of 15 feet by 12 feet. How much area is left for development in the field outside the playground? 756 ft2 576 ft2 288 ft2 180 ft2
Answers
Answer:
576 ft²
Step-by-step explanation:
Large rectangle:
21·36=756
Smaller rectangle:
15·12=180
Find leftover area:
756-180
=576 ft²
Hope this helps! :)
Answer:
The area that is left for development in the field outside the playground is 576 ft².
Step-by-step explanation:
To calculate the area left for development in the field outside the playground, we need to subtract the area of the smaller rectangle from the area of the larger rectangle.
The area of a rectangle is the product of its width and length:
\(\boxed{\sf Area\;of\;a\;rectangle=width \times length}\)
The dimensions of the larger rectangle are:
width = 21 ftlength = 36 ftThe dimensions of the smaller rectangle are:
width = 15 ftlength = 12 ftTherefore, the development area can be calculated as follows:
\(\begin{aligned}\sf Development \;area&=\sf Area_{large\;rectangle}-Area_{small\;rectangle}\\\\&=(21 \times 36)-(15 \times 12)\\\\&=756-180\\\\&=576\; \sf ft^2\end{aligned}\)
Therefore, the area that is left for development in the field outside the playground is 576 ft².
The diagram shows a door that has a window in it. The front faces of the door and the window are similar rectangles that have the dimensions shown.
What is h, the height of the window in centimeters?
A. 186
B. Not here
C. 66
D. 150
Answers
Answer:
D. 150
Step-by-step explanation:
D. 150
order the numbers from least to greatest. 5 5/11, -5.5, 5.33 repeated, -5 4/5
Answers
Pls yall have to help me hurry to get 10 pionts but you have to have a explamation and a answer pls pls pls if you do something wrong ill report you hurry tho
Martin decided to buy 2 bags of grapes weighing 5 and two-thirds pounds each, instead of the 3 bags weighing 4 and one-fifth pounds each, because the bigger bags were on sale. Did he end up with more grapes or less grapes by buying the bigger bags?
1.He ended up with about One-half pound less grapes.
2.He ended up with about One-half pound more grapes.
3.He ended up with about 1 pound less grapes.
4.He ended up with about 1 pound more grapes.
Answers
Answer:
4
Step-by-step explanation:
theres 2 = 5 2/3
and 3 =4 1/5
the two weigh more wich means theres probably more grapes in the bigger bag. and when you simplify them, the bag is about one pound more
Answer:
3. He ended up with less
Step-by-step explanation:
what is melody MUSIC TERMS. ill mark brainliest
Answers
Graph the following in cartesian plane. With solution.
1.) 5x - 4y = 20
2.) 3x + 3y = 15
3.) y = 3/4x - 2
4.) y = -3/2x + 3
Answers
2. 5
3. 3/8
4. -1/2
The Painter siblings, Elsa, Ben and Cal paint houses. They have been in the business so long that each knows exactly how many square feet each other paints in one hour and these rates never change. For their latest job, they calculated that if Elsa and Ben did the job together, it would take exactly 11 hours. On the other hand, if Elsa and Cal did the job together, it would take exactly 9 hours. Finally, Ben and Cal could do it in exactly 9.9 hours (or if you prefer, 9 hours and 54 minutes). They decided all three would paint this particular house. Ben and Cal started the job at 8 AM and Elsa joined them at 9:00. Cal left at 1:30 and so Ben and Elsafinished the job. After deducting the supply costs (paint etc.), the brothers split the net profit based on what percentage of the total square footage each painted. Who earned the most and who earned the least for this job?
Answers
Answer:
Elsa earned the most
Ben earned the least
Step-by-step explanation:
E = Elsa's speed
B = Ben's speed
C = Cal's speed
The combined speeds are:
E + B = 1/11
E + C = 1/9
B + C = 1/9.9
If we add up all three equations:
2B + 2C + 2E = 10/33
B + C + E = 5/33
If we subtract each of the first three equations from the total equation, we can find the individual speeds.
C = 5/33 − 1/11 = 2/33
B = 5/33 − 1/9 = 4/99
E = 5/33 − 1/9.9 = 5/99
Ben and Cal paint together for 1 hour. The fraction of the wall they paint is:
(1/9.9) × 1 = 10/99
Elsa, Ben, and Cal all paint together for the next 4.5 hours. The fraction of the wall they paint is:
(5/33) × 4.5 = 15/22
Ben and Elsa then finish the job. The amount of wall left is 1 − 10/99 − 15/22 = 43/198. So the time it takes is:
(43/198) / (1/11) = 43/18 hours
The fraction of the wall that Ben paints is:
(4/99) (1 + 4.5 + 43/18) = 284/891
The fraction of the wall that Cal paints is:
(2/33) (1 + 4.5) = 1/3 = 297/891
The fraction of the wall that Elsa paints is:
(5/99) (4.5 + 43/18) = 310/891
Answer:
Ben earned the most as 6 of 16.5 as a percentage = (6*100):16.5 =36.36%
We check with Elsa and she earned the least as (5*100):16.5 =30.31%
Cal earned the average as 5.5 of 16.5 as a percentage = (5.5*100):16.5 =33.33%
Step-by-step explanation:
E + B = 11hrs
E + C = 9hrs
B+C = 9.9 hrs
Lets say the house was 100ft sq
if E took 5.5 hrs
B took 5.5hrs we would have 11
C took 3.5 hrs we would have 9hrs for E+C
B took 5.5 hrs + 3.5hrs we are 0.9hrs short and see that B would need to take 0.9 more which means E works 0.9hrs less and shares 0.4 less with C having 0.5 less which gives B an extra 0.4 instead of 0.9
This equates to B: 5.9 , C: 3.9 , E: 5.1
We can change to B: 6 , C: 3.94 , E: 5.4
= E+B = 11.4 = 11
= E+C = 8.99 = 9
= B+C = 9.94 = 9.9
Percentages of fixed net pay when B: 6 , C: 3.94 , E: 5.4 = 6+ 3.94+ 5.4 = 100
Time when 15.34 hrs = 100% if working same rate changes to 16.5hrs to account for the hours given 8am-1.30pm 8am-1.30+ 9am-1.30+ = minimum 1hr more = 2pm
Cal worked 8 am till 1.30 pm = 5.5hrs = 1.66hr extra
Ben worked 8am till 2pm = 6 hrs = 0 hr extra together worked 11.5hrs
Elsa worked 9am till 2pm = 5 hrs = -0.4hr less
11.5+ 5 = 16.5 This equals 16.5hrs = 100%
Ben earned the most as 6 of 16.5 as a percentage = (6*100):16.5 =36.36%
Cal earned the average as 5.5 of 16.5 as a percentage = (5.5*100):16.5 =33.33%
We check with Elsa and she earned the least as (5*100):16.5 =30.31% is the same as 100-69.67%
ILL GIVE 50 + 25 POINTS AND BRAINLIEST TO CORRECT ANSWER!!
x is indirectly proportional to y, if x = 32 and y = -10, write the proportional constant and equation. Then if y = -51, find x.
TYVM!!
Answers
Answer: 10
Step-by-step explanation:
add subtract and add again
Think About the Process
A right rectangular prism has length 3 1/3 , width 2 1/3 , and height 1 1/3 . You use cubes with fractional edge length 1/3 to find the volume. How many cubes are there for each of the length, width, and height of the prism? Find the volume.
Answers
For the length, we have:
3 1/3 ÷ 1/3 = 10
So there are 10 cubes along the length of the prism.
For the width, we have:
2 1/3 ÷ 1/3 = 7
So there are 7 cubes along the width of the prism.
For the height, we have:
1 1/3 ÷ 1/3 = 4
So there are 4 cubes along the height of the prism.
To find the volume of the prism, we can multiply the number of cubes along each dimension.
Volume = length × width × height
Volume = 10 × 7 × 4
Volume = 280 cubic units
So the volume of the prism is 280 cubic units.
Answer:crr
Step-by-step explanation:
thf
Three research departments have 8 ,10 , and 7 members, respectively. Each department is to select a delegate and an alternate to represent the department at a conference. In how many ways can this be done?
Answers
We can conclude that exists 211680 ways.
How many ways can this be done?We know that the three research department is have 8, 10, and 7 members.
We choose a delegate and an alternate to represent the department.
First case: department have 8 members.
So, for a delegate, we have 8 options, and for a alternate 7, so a total of
\(8 \times 7 = 56 \ \text{options}\)
Second case: department have 10 members.
So, for a delegate, we have 10 options, and for a alternate 9, so a total of
\(10\times 9 =90 \ \text{options}\)
Third case: department have 7 members.
So, for a delegate, we have 7 options, and for a alternate 6, so a total of
\(7\times6 = 42 \ \text{options}\)
Therefore, we get:
\(56 \times 90 \times 42 = \bold{211680}\)
Hence, we conclude that exists 211680 ways.
For a similar problem about this, please click the link below:
https://brainly.com/question/30958797
For the first department with 8 members, there are 8 choices for selecting a delegate. After choosing a delegate, there remain 7 members, so there are 7 choices for selecting an alternate. Therefore, there are 8 × 7 = 56 ways to select a delegate and an alternate from the first department.
Similarly, for the second department with 10 members, there are 10 choices for selecting a delegate and 9 choices for selecting an alternate. Hence, there are 10 × 9 = 90 ways to select a delegate and an alternate from the second department.
For the third department with 7 members, there are 7 choices for selecting a delegate and 6 choices for selecting an alternate. Thus, there are 7 × 6 = 42 ways to select a delegate and an alternate from the third department.
To find the total number of ways to select delegates and alternates from all three departments, we multiply the number of choices for each department together:
56 × 90 × 42 = 211,680.
Therefore, there are 211,680 ways to select a delegate and an alternate from each department.
Kenneth graphed a system of equations.
Kenneth says the system has no solution
Do you agree?
Yes or No
Answers
What is the y-intercept, axis of symmetry and vertex of the following function.\(F(x)=-3x^{2} -6x-5\)
Will give brainilist
Answers
Axis of sym = -1
Vertex = (-1, -2)
Manuela spins a spinner with four equal sections, labeled A, B, C, and D, twice. If letter B is spun at least once, she wins. Otherwise, Gabriela wins. Which shows the winning sample space for Manuela?
Answers
Answer:
B
Step-by-step explanation:
is b because its that and I did the assiment
there are 12 broken lightbulbs in a box of 200. what percent of the lightbulbs are broken
Answers
Answer:
6%
Step-by-step explanation:
Answer:
6%
Step-by-step explanation:
Because if you do 200/2 you get 100% which is the normal percentage and then you do 12/2 which equals 6, so the percent of lightbulbs that are broken is 6%.
PLEASE help me!! This is an algebra question. Please use variables to solve it.
Answers
Answer:
If Rick is 30,Mark is 28,Jeff is 24
If Jeff is 25,Mark is 29,Rick is 31
If the total is 112 than mark is 38
(Rick)40+38(Mark)+34(Jeff) =112
PLEASE HELP!! 20 POINTS!! paul us getting a new bike, He can get either a racing bike or a mountain bike. His color choices are red, black, and silver. Make a tree diagram showing paul's possible outcomes. Then answer the questions. Write fractions in simplest form. How many possible outcomes are there.______ What's the probability of paul getting the racing bike?_______ What's the probability that the bike will be red? What's the probability that Paul will get a silver mountain bike.
Answers
Answer:
6 possible outcomes, 50% or 3/6 getting the racing bike, 2/6 or 1/3 being red, and 2/6 or 1/3 getting silver bike.
Step-by-step explanation:
racing bike mountain bike
red black silver red black silver
possible outcomes are there 6 possible outcomes, 50% or 3/6 getting the racing bike, 2/6 or 1/3 being red, and 2/6 or 1/3 getting a silver bike.
We have given that,
paul is getting a new bike, He can get either a racing bike or a mountain bike.
His color choices are red, black, and silver.
Make a tree diagram showing paul's possible outcomes.
racing bike mountain bike
red black silver red black silver
Therefore we get,
{red, black, silver, red, black, silver }
What is the formula for probability?The probability of an event can be calculated by the probability formula by simply dividing the favorable number of outcomes.
The possible outcomes are 6
The probability for the racing car is,
\(P(C)=\frac{3}{6}=1/2\)
And the probability for the red car
\(P(R)=\frac{2}{6}=1/3\)
To learn more about the probability visit:
https://brainly.com/question/25870256
#SPJ2
Please help. Need to understand it. At least give an answer.
Answers
Answer:
The asnwer is the first one:
Step-by-step explanation:
You do this
x = 3.242424242424
100x = 324.24242424242424242424
-x
= 329/99
3-24/99
3 8/33
Answer:
A, 3 8/33.
Step-by-step explanation:
x = 3.242424.....
100x = 324.2424.....
If we subtract, we get 99x = 324.2424... - 3.2424.... = 321.
99x = 321
x = 321 / 99 = 107 / 33 = 3 8/33
The entire world's population could fit inside Los Angeles
Answers
Answer:
Nah, I don't think so. But if that real, then woah
help me pls: Select the fraction that is equivalent to two thirds.
a. 2/12
b. 4/12
c. 3/6
d. 8/12
Answers
Answer: D. 8/12
Step-by-step explanation:
8/12 is the equivalent fraction to 2/3 which we can see when the fraction is put into it's simplest form.
See here: In the fraction 8/12, there is an 8 as the numerator (top number) and a 12 as the denominator (bottom number). When we look at these, it is crucial to find the GCF (greatest common factor) so it can be put into simplest form. In this case, 8's factors are (1x8) and (2x4). 12's factors are (1x12), (2x6), and (3x4). Looking at these factors for both numbers, we can see that they both have a 2 and a 4. However, because the 4 is the greater number, it is our GCF. Now divide the numerator and the denominator by 4 to get 2/3
Petra jogs 4 miles in 36 minutes. At this rate, how long would it take her to jog 12 miles?
Answers
Answer:
90 minutes or 1 hour and 30 minutes.
Step-by-step explanation:
Solve the following inequality for w: 6w + 7 ≥ 10w + 2
Answers
true or false signals from the peripheral devices are carried to CPU a long control bus circuits
Answers
Answer: true
Step-by-step explanation:
Help!!
Use the diagram of the equilateral triangle shown below to answer the following questions. Show the work that leads to your answers. a. What is the perimeter of the triangle? b. What is the height, ℎ mm, of the equilateral triangle? Write an exact answer using a square root and an approximate answer rounded to the tenths place.
Answers
Answer:
Perimeter is 12mm, height is \(2\sqrt3\)mm in simplest radical form, and 3.5mm in approximate decimal form.
Step-by-step explanation:
The perimeter is easy; since it's an equilateral triangle, all sides are the same length of 4, so you can just do 3*4 (3 sides, 4mm each) to get a perimeter of 12.
For the height, you can see that it forms two right triangles, each with a given base of 2 and a hypotenuse of 4. We can apply the pythagorean theorem (\(a^2+b^2=c^2\)) here to find the missing leg length of the smaller right triangles, which is equal to the big triangle's height.
I've enclosed an attachment for that.
Hope this helps!
