Triangle JKL is pictured in the coordinate plane. Triangle JKL is dilated to create the new ordered pairs J’(1,0.5) K’(1.5, 2.5) L’(2.5,-0.5). What is the scale factor?
A) 2
B) 1/4
C) 1/2
D) 4
Answers
Explanation: if you take the point of J it’s (2,1) and to get to point J’(1,0.5) you would have to multiply a fraction to get a smaller point
Related Questions
LAST QUESTIONN IM LOSTT
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Answer: 50 Degress
Step-by-step explanation: As we can see in the photo, this is half of a circle which is equal to 180 degress, because a full circle is 360 degress.
We already have the first two angles completed, so to make things simple we will add them
65 + 65 = 130
Next since we know the total of all three angles is 180 degress we will subtract that by the angles we already are shown, which is a total 130 degress
180 - 130 = 50
So angle C is 50 degress
Answer:
Not really sure if u can try to guess?
Step-by-step explanation:
sorry I am super sorry
Jacinta says that the product of a rational number and an irrational number is always irrational. Explain her error.
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Jacinta says that the product of a rational number and an irrational number is always irrational her claim is wrong.
What is a rational number?A rational number is one that can be stated mathematically as the ratio or fraction p/q of two numbers, where p and q are the numerator and denominator, respectively.
Irrational numbers are all real numbers that are not rational numbers in mathematics. Irrational numbers, on the other hand, cannot be stated as the ratio of two integers. Decimal notation is the term used to describe the method of representing numbers in the decimal system.
Given that Jacinta says that the product of a rational number and an irrational number is always irrational.
Her statement is incorrect because if 0 a rational number is multiplied with the π which is irrational then the result will be 0 which is rational.
Therefore, Jacinta's claim is wrong.
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kinda need help went to Saint Louis so need help thanks.
Answers
answer: 9- 18/4. 10) 32/4.//// 7) 78/12
11- 52/20. 12) 80/20 ////8) 214/24
these answers are in there simplest form.
6) 32/12 (or simplified to 2 2/3)
7) 78/6 (or simplified to 13 wholes)
8) 214/12 (or simplified to 17 5/6
9) 18/2 (or simplified to 9 wholes)
10) 32/2 (or simplified to 16 wholes)
11) 52/5 (or simplified to 10 2/5)
12) 80/10 (or simplified to 4/5)
You pick a card at random. 6 7 8 9 What is P(divisor of 70)? Write your answer as a percentage. %
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Answer:
Step-by-step explanation:
The stem-and-leaf plot displays data collected on the size of 15 classes at two different schools.
Mountain View School Seaside School
0 5, 8
9, 8, 2, 0 1 0, 1, 2, 5, 6, 8
8, 7, 6, 5, 5, 4, 4, 3, 1, 0 2 5, 5, 7, 7, 8
0 3 0, 6
Key: 2 | 1 | 0 means 12 for Mountain View and 10 for Seaside
Part A: Calculate the measures of center. Show all work. (2 points)
Part B: Calculate the measures of variability. Show all work. (1 point)
Part C: If you are interested in a smaller class size, which school is a better choice for you? Explain your reasoning. (1 point)
Answers
For Mountain View School:
Data: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 0 + 1 + 2 + 3 + 4 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 8 + 8 + 8 + 9) / 19
= 100 / 19
≈ 5.26
To find the median, we need to arrange the data in ascending order: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5
For Seaside School:
Data: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 1 + 1 + 2 + 2 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 7 + 8 + 8 + 8 + 9) / 19
= 80 / 19
≈ 4.21
To find the median, we need to arrange the data in ascending order: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5
Now let's calculate the measures of variability, specifically the range and interquartile range (IQR).
Range: The range is the difference between the largest and smallest values in the dataset.
For Mountain View School:
Range: 9 - 0 = 9
For Seaside School:
Range: 9 - 0 = 9
Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1) and measures the spread of the middle 50% of the data.
For Mountain View School:
Q1 = 3
Q3 = 7
IQR = Q3 - Q1 = 7 - 3 = 4
For Seaside School:
Q1 = 2
Q3 = 7
IQR = Q3 - Q1 = 7 - 2 = 5
To determine which school is a better choice for a smaller class size, we can consider both the mean and the median.
Both the mean and median for Mountain View School are higher than those for Seaside School. This suggests that, on average, the class sizes at Mountain View School are larger than those at Seaside School. Therefore, if you are interested in a smaller class size, Seaside School would be a better choice
For Mountain View School:
- Median: The median class size is the middle value, which is 25.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (29 + 28 + 28 + 27 + 25 + 24 + 24 + 23 + 21 + 20 + 19 + 18 + 15 + 13 + 10) / 15 = 21.27.
For Seaside School:
- Median: The median class size is the middle value, which is 20.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (25 + 25 + 27 + 27 + 28 + 28 + 28 + 30 + 31 + 35 + 36 + 38 + 40 + 43 + 45) / 15 = 31.13.
Part B:
For Mountain View School:
- Range: The range is the difference between the largest and smallest values, which is 29 - 10 = 19.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 20 and Q3 is 28. Therefore, the IQR is 28 - 20 = 8.
For Seaside School:
- Range: The range is the difference between the largest and smallest values, which is 45 - 25 = 20.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 27 and Q3 is 38. Therefore, the IQR is 38 - 27 = 11.
Part C:
If you are interested in a smaller class size, Mountain View School is a better choice for you because it has a lower mean and median class size than Seaside School.
Andre draws the tape diagram below to represent 3 divided by 2/3, and says that the answer is 4 and 1/3. Is he correct?
Answers
Answer:
No, he is not
Step-by-step explanation:
3 : 2/3 = 3*3/2 = 9/2 = 4 1/2
There are four 2/3 fractions and one 1/3 fraction
The 1/3 fraction is 1/2 of 2/3 fraction so instead of counting 1/3 as 1/3 it should be counted as 1/2
solve 54.6 divided by 12 using an area model.
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Answer:
Step-by-step explanation:
To solve 54.6 divided by 12 using an area model, we can follow these steps:
Step 1: Draw a rectangle and divide it into 12 equal parts horizontally, representing the 12 in the division problem.
Step 2: Label the top of the rectangle with 54.6, the number being divided.
Step 3: Divide the rectangle into 5 equal parts vertically, representing the first digit of 54.6, which is 5.
Step 4: Shade in the first four sections of the rectangle, representing 48, which is the largest multiple of 12 that is less than 54.6.
Step 5: Divide the fifth section of the rectangle into 10 equal parts vertically, representing the decimal place in 54.6.
Step 6: Shade in 6 of the 10 parts of the fifth section, representing the remaining 6 in 54.6.
Step 7: Count the number of shaded parts in the entire rectangle. The answer is the number of shaded parts, which is 4 and 1/2 or 4.5.
Therefore, 54.6 divided by 12 is 4.5, and we can see this from the area model
Ans=4.5
how to solve 6r - 1 + 6r =11
Answers
Answer:
r = 1
Step-by-step explanation:
The equation is,
→ 6r - 1 + 6r = 11
Now the value of r will be,
→ 6r - 1 + 6r = 11
→ 12r = 11 + 1
→ r = 12/12
→ [ r = 1 ]
Hence, the value of r is 1.
Answer:
The answer is 1 r is equal to 1
Step-by-step explanation:
I will give brainliest to whoever answers this question. Also if you can please explain how you solved it I would appreciate it!
Answers
To find the unit rate:
Divide 5.25 feet by 3 feet, and I got 1.75, so the unit rate would be 1.75 feet(Jorge’s height)/1 foot of shadow. A shorter version of this would be 1.75/1
Then, now that you know the unit rate, or how many feet in height for every one foot of shadow, you multiply 1.75 by the length of the shadow (23 feet). For this I got 40.25.
40.25 is the height of the flag pole :)
Answer:
40.25 feet tall
Step-by-step explanation:
There is a small triangle made by the boy and the three feet of shadow. This triangle when scaled up will be the same as the flag and the full shadow.
To do this you need to find how much to multiply 3 by to get 23.
First you do 23/3 which will give you 7.6 repeating. or 7.6666666666... (same thing)
If you then multiply that number by the boy's height 5.25 you will get the answer 40.25.
This is because the triangle the flag creates is 7.666... times larger than the triangle the boy creates.
A music shop sold twenty five $50.00 radios at a profit of 8% and six $30.00 radios at a loss of 15%. How much was the profit or loss on the combined transaction?
Answers
Answer:
Step-by-step explanation:
the original price would be $80.00
50.00*0.08 = 4 50.00-4 = 46.00
46.00 for 25 radios with 4 cash back
30.00*0.15= 4.5 30.00- 4.5 = 25.50
total is 71.50
List all the numbers you can for (?) in the fraction ?/10. Each choice must be less then ten, and the fraction formed must be in simplest form [For the ones who can't read what it says.]
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Answer:
1, 2, 3, 4, 5, 6, 7, 8, and 9.
Step-by-step explanation:
Use your knowledge of simulations to answer the questions below.
5. Eastside Middle School has 75% student participation in the fall carnival. Determine which of
the simulations below could model the probability of a student participating.
rolling a number cube, where rolling an odd number represents students who participate in
the fall carnival
spinning a spinner with the equal sections marked with the letters A-E, where spinning a
vowel represents students who participate in the fall carnival
spinning a spinner with four equal sections numbered 1-4, where spinning anything but 1
represents students who participate in the fall carnival
Answers
Answer:
5. Eastside Middle School has 75%
Step-by-step explanation:
Michael has a bag of marbles. The frequency of selecting each color is recorded in the table below. Outcome Frequency Green 4 Black 6 Orange 5 Based on the given frequency, determine the experimental probability of selecting a black marble. 0.27 0.33 0.40 0.60
help asap if answer is correct and provided explanation i will give brainiest.
Answers
Reason:
6 black out of 4+6+5 = 15 total
6/15 = 0.40 is the experimental probability of selecting black.
Side note: The term "empirical probability" is the same as "experimental probability".
The experimental probability of selecting a black marble will be 0.40. The correct option is C.
What is probability?Probability is a number that indicates the likelihood of an event occurring. Probability is defined as the ratio of favourable outcomes to all outcomes.
Probability = Number of favourable outcomes / Number of samples
Given that Michael has a bag of marbles. The frequency of selecting each colour is recorded in the table below. Outcome Frequency Green 4 Black 6 Orange 5.
Number of favourable outcomes = 6
Number of samples = 4+6+5 = 15
Probability = Number of favourable outcomes / Number of samples
Probability = 6 / 15
Probability = 0.40
Therefore, the probability will be 0.40.
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An art class is making a mural for their school which has a triangle drawn in the middle. The length of the bottom of the triangle is x. Another side is 13 more than two times the length of the bottom of the triangle. The last side is 11 more than the bottom of the triangle. Write and simplify an expression for the perimeter of the triangle.<3
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LITERALLLLLLY DO AT 12
Answers
Answer:
New England had skilled craftsmen in the industry of shipbuilding. The Mid-Atlantic presented a diverse workforce of farmers, fisherman, and merchants. The Southern Colonies were primarily agricultural with few cities and limited schools.
Hope this helped :)
help pls its due today thank you
Answers
Simplify 3x - 4 - 5x = 6 + 4x + 2
Answers
Answer:
x=(−2)
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
Step 2: Subtract 4x from both sides.
Step 3: Add 4 to both sides.
Step 4: Divide both sides by -6.
math
screenshots
every question will ask to find the slope.
thank you
happy/hoppy easter-eve
Answers
Work out the size of angle x
Answers
Answer:
129°
Step-by-step explanation:
Step-by-step explanation:
soln,
51°+x=180°[exterior angles]
or,x=180°-51°
or,x=129°
•°•x=129°
hope it helps
Tom and Elise went scuba diving while on vacation. Tom went down 17 feet while Elise went down 12 feet, What is the value of the surface of the water?
Answers
On a number line you can see -19 is closer to 0 than -25, since 0 feet down is the surface of the water, Elise will be closer.
Please help! Thank you!
Answers
Answer:
525
Step-by-step explanation:
If it's just asking to find the average of heads then times it by 20 then just do 32+28+21+24 to get 105 and divide it by 4 to get 26.25 then times it by 20 since this is the average of 50 throws and it's asking for the average of 1,000 throws which is 525
What is the product of 8 Over 9 and 2 Over 7 ?
10 Over 63
16 Over 63
9 Over 28
11 Over 15
Answers
8/9*2/7=16/63
That is the answer.
A music store buys a trumpet for $80. They want to make a 35% profit. What is the new price of the trumpet?
Answers
Answer: $108
Step-by-step explanation:
80 x .35 = 28
80+28= 108
So to solve this you to multiply the original cost($80) to 0.35
80(0.35)=$28
28 dollars is what they want to make in addition to the 80 they spent so
80+28=108
So the new price of the trumpet is $108 with profit
please solve this correctly in simple words
Answers
Answer: The answer is -2/6 :)
Step-by-step explanation:
Answer: -5/24
Step-by-step explanation:
-7/12+3/8 can also be written as
3/8-7/12
The answer will be -5/24
I hope it is right
You have a pizza with diameter 12
2
3 in., and a square box that is 12.65 in. across. Write 12
2
3 as a decimal. Can you fit the pizza inside the box?
What is the decimal expansion for 12
2
3?
A.12.6
B.12.65
C.12.6
D.12.66
pls help me
Answers
Answer:
D is the right choice and no you cannot fit the pizza inside the box.
Step-by-step explanation:
D is the answer because to turn 2/3 into a decimal you would divide 2 by 3 and the answer you would get would be 0.66666666666...You would then add 12 to the answer and get 12.6666... Once you get this answer you would round it to the hundredths to get 12.67 but since that is not an option you could use D, 12.66 inches.
Answer:
I believe the answer is D.
Step-by-step explanation:
-3 + 6x. Which expression shows the correct factorization?
Here are the ones to pick from
1. -2 + -2 +6 +x
2. 6(-2 +x)
3. 6(-2 +x)
4. -3 (1 - 2x)
Answers
Answer:
Option #4
Step-by-step explanation:
Expand option #4
=-3(1-2x)
=-3 -2x*-3
=-3+6x which is what your original equation was.
A bulletin board is 23 square feet. What is the approximate perimeter of the bulletin board? And wants to have an area of 32 square feet. About how many feet of fencing would he need? A window is a square and has an area of 15 square feet. About how many feet of wood is needed to frame the window? A frame is 2 inches thick. The area of the picture and frame together is 121 inches. What is the length if the picture? What is the are of the picture? 10 POINTS FOR EACH ANSWER!!
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Answer: The answer to the first question is 20
Step-by-step explanation:
Answer: The answer to the first question is 20
Please help me! im on an assignment an cant figure it out
Answers
Step-by-step explanation:
The difference beteen 9.2 ounces and 8.1 ounces is 1.1 ounces
and the difference in price is .49
so 1.1 ounces cost .49
$ .49 / 1.1 oz = $ .445 per ounce
Then Reid's bowl should cost 7.8 oz * $ .445 / oz = $3.47
A submarine started the day at 1200 feet below sea level. The submarine rose 60 feet per hour during a 3-hour period. Which expression represents the new position of the submarine in relation to sea level? –1,200 – 3(60) –1,200 + 3(60) 1,200 – 3(60) 1,200 + 3(–60)
Answers
Answer:
The answer is -1200 +3(60)
Step-by-step explanation:
If the submarine is 1200 feet below sea level, that means that the submarine's level is -1200. If you rise by 60 in a 3 hour period, you rise by 60 every 3 hours. So if your rising by 60 feet, 60 is not a negative, and the equation would be -1200+3(60). Hope this helped! :D
PLSSS HELP ME GIVE BRANLIEST!!!
What is the mean of the data set shown below?
{5, 5, 5, 10, 10, 15, 15, 20, 25, 30, 35, 40, 40, 45, 50, 50}
A. 5
B. 22.5
C. 25
D. 45
Answers
Answer:
the mean of this data set is 25, so letter c is correct
The mean of the data is 25