Answers
Answer:
4
Step-by-step explanation:
♣
Related Questions
Help me please, it's due tomorrow!
Calculate the numerical value of expressions
A) \(x^{2}\) - 2y to X=-3 and Y=5
B) \(3a^{2}\) \( - b^{2}\) to A=-2 and B=-7
C) \(\frac{a^{2} + b^{2}}{2 }\) para \(\left \ {{a=-1} \atop {b=-2}} \right.\)
D) \(\frac{ab+c}{ab-c}\) para A=2, B=5 e C=3
E) \(\frac{a+b}{3}\) + \(\frac{2a}{5}\) para A=1 e B=-7
F) \(5a^{3} + 3ab\) to A=-3 and B=4
Answers
Answer:
A) -19
B) -37
C) 1
D) \(\frac{13}{7} \\\)
E) \(\frac{-8}{5}\)
F) -28
Step-by-step explanation:
You have to plug the variables into the spots that they go into. Once you have done that, you can begin solving. Once you have your answer, you can always plug it back into the problem to make sure it makes sense.
You go to a shop that sells tricycles. There are 18 wheels in the Wheel Shop.
How many tricycles are in the shop?
Explain how you know.
Answers
Each tricycle has 3 wheels.
18 divided by 3 equals 6.
A tricycle has 3 wheels
So divide 18 by 3
= 6
Therefore there are three tricycles
please answer quickly
Answers
Answer:
37.5
Step-by-step explanation:
cosФ = \(\frac{A}{H}\)
cos(33°35') = \(\frac{m}{45}\)
m = 45 × cos(33°35')
m = 37.5 (1d.p.)
Kenny bought a 50-pound bag of chicken feed for $29.98 and a 25-pound bag for $15.49. Can you use proportional reasoning to find the price of a 40-pound bag? Explain.
Yes; The ratio of pounds to cost is equivalent.
Yes; The unit rates are the same.
Yes; The line containing these two points passes through the origin.
No; There is no constant of proportionality.
Answers
Need answer by today
Answers
Answer:
980 feet per minute
Step-by-step explanation:
A class trip consists of 84 students and 6 teachers. How many students per teacher are there?
Answers
Answer:
14
Step-by-step explanation:
84 divided by 6
Answer:
14 students per teacher
Step-by-step explanation:
All you have to do is 84 divided by 6 to get the answer
(Hope this helped have a good day!!)
There are 18 people in a classroom. If one third of them are late to school and receive detention, and half of them attend on Monday, how many people are in detention on Monday?
note: please answer before 4:00 PM, March 9, 2022.
Answers
Answer:
3
Step-by-step explanation:
18/3=6
6/2
3
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.
i need help guys, can someone pls help? i already answered it but i know its wrong so avoid the answers that were written.
Answers
Answer:
A: d= every time she walks the dog
b= every time she babysits
B: 8d+12b
Brainlyest pls
Answer:
A: d= every time she walks the dog b= every time she babysits
B: 12b+8d
Step-by-step explanation:
I just did it.
Diego made 6 boxes of spaghetti to feed the 20 people who attended his dinner party.
Next time, 50 people are coming! How many boxes of spaghetti should Diego buy to feed all those people?
Answers
3 box per 10 people
3x5=15
A study found that 9% of dog owners brush their dog’s teeth. Of 578 dog owners, about how many would be expected to brush their dog’s teeth? Explain.
A.
50; 9% ≈ 10% and 578 should be rounded down to 500; 10% of 500 = 50
B.
60; 9% ≈ 10% and 578 ≈ 600; 10% of 600 = 60
C.
70; 9% ≈ 10% and 578 ≈ 700; 10% of 700 = 70
is it A. B. or C.
Answers
Answer: A
Step-by-step explanation: 578*0.09=52.02~ is 50
help me this one plssssssssssss
Answers
Answer:
The integer that describes the translation from B to B' is (-2,1)
Line C passes through the points (0, -5) and (2, -3). Line D has the equation y = 2/5x - 3 which statement is true
Answers
Answer:
a)
Step-by-step explanation:
hello :
the statement a) is true because the slope for D is 2/5
the slope for c is : ((-3)-(-5))/((2)-(0)) = 1
Solve:
If Sally can walk 1/3 of a mile in 1/4 of an hour. How far will she walk 2 1/2 hours?
Answers
Answer:
3 1/3 miles
Step-by-step explanation:
PLEASE HELP :'( 20 points! +brainly!
Type the number to the left of the rational number in the box to the point it represents on the number line.
1/2
1/5
9/10
-0.5
0.6
-4/5
Answers
Answer:
-4/5, -0.5, 1/5, 1/2, 0.6, 0.9
Step-by-step explanation:
Answer:
-4/5, -0.5, 1/5, 1/2, 0.6, 0.9
Step-by-step explanation:
no foolish answers please!! ;w; I've had so many in the last min
1. 7 ft. =_____in.
2. 100 yd. =________ft.
3. m = ______cm
4. 5 km =_______m
5. 96 oz. =_______lb.
6. 2 mi. =_______ft.
7. 2 mi. =_______yd.
8. 32 fl.oz. =_______c.
9. 1,500 mL =_______L
10. 6 g =_______mg
11. Beau buys a 3-pound bag of trail mix for a hike. He wants to make one-ounce bags for his friends with whom he is hiking. How many one-ounce bags can he make?
12. The maximum weight for a truck on the New York State Thruway is 40 tons. How many pounds is this?
13. Claudia’s skis are 150 centimeters long. How many meters is this?
14. Claudia’s skis are 150 centimeters long. How many millimeters is this?
Answers
Answer:
1:84in
2:300ft
3:100
4:5000
5: 6 (i think, i hope so atleast)
6: 10560
7: 3520
8: 4
9: 1.5
10: 6000.00 mg
11: He can make 48 bags
12:80,000 lb
OwO
Step-by-step explanation:
Helpppp please?? tysm
Answers
Answer: d.
Step-by-step explanation:
Help!
The number of cookies that were made at a bakery for each of seven days is shown:
108, 96, 96, 84, 108, 240, and 84
The best measure of center for this data set is the-
A: median because all of the values are close to one another in value
B: mean because all of the values are close to one another in value
C: median because 240 is much higher than the other numbers in the data set
D: mean because 240 is much higher than the other numbers in the data set
Answers
The data set is as follows: 108, 96, 96, 84, 108, 240, and 84.
The median represents the middle value when the data set is arranged in ascending or descending order. In this case, when we arrange the data in ascending order, we have: 84, 84, 96, 96, 108, 108, 240. The middle value is 96, which is the fourth value in the sorted data set.
The mean is calculated by summing up all the values and dividing by the total number of values. In this case, the sum of the values is 756 (108 + 96 + 96 + 84 + 108 + 240 + 84), and there are seven values. Therefore, the mean is 756/7 = 108.
Comparing the options:
A: median because all of the values are close to one another in value - This is not accurate as the values vary, and the median is not necessarily the best measure of center based on the values being close to one another.
B: mean because all of the values are close to one another in value - This is not accurate as the values are not all close to one another, and the mean is not necessarily the best measure of center based on the values being close to one another.
C: median because 240 is much higher than the other numbers in the data set - This is not accurate as the presence of a single high value does not automatically make the median the best measure of center.
D: mean because 240 is much higher than the other numbers in the data set - This is the most accurate option. The mean takes into account the magnitude of each value and is influenced by extreme values. The value 240 has a significant impact on the mean, making it a better measure of center in this case.
Therefore, the best measure of center for this data set is D: mean because 240 is much higher than the other numbers in the data set.
help me, please thanks
Answers
Answer: 120 feet sqaured
Step-by-step explanation:
Surface area for square pyramid formula: 2bh + b^2
Base = 6 Height = 9
2*6*9+6^2 =
108+12 =
120
Answer:
120 feet squared
Step-by-step explanation:
HElP WIlL gIvE BranILieSt!!!!!!!
Answers
Answer:
"What is your favorite vegetable?" for the first one and Choices A and B are correct for the second one.
Step-by-step explanation:
For the first image/question:
The first survey question is correct and gives you the most data.
"What is your favorite vegetable?"
That question gives a variety of choices and also gives you data similar
to each other.
Ex. 12 people like potatoes, 15 people like corn. 5 people like spinach, etc.
This amount of data is easier to present/graph and also very common/open-ended as opposed to questions like "In which zipcode do you live in?"
Second Question:
The data set can represent the weight of a dozen eggs and could possibly represent the length of leaves from a tree if measured in Centimeters.
A and B are the right choices.
The other few options aren't appropriate due to the data.
help me with this lol
Answers
Answer:
B
Step-by-step explanation:
Ashley tutors English. For each hour that she tutors, she earns 20 dollars.
Let 'E' be her earnings (in dollars) after tutoring for 'H' hours.
Write an equation relating 'E' to 'H'. Then use this equation to find Ashley's earnings after tutoring for 13 hours.
Answers
basically her total earnings can be found by multiplying the amount she makes in one hour by 13
i hope this helps :)
Before you multiply or divide a fraction by a mixed number, you have to make sure they are both in the same___________?
Answers
Answer:
Step-by-step explanation:
form. Meaning you need make both fractions improper
1204 students are asked whether they like pizza.
The students responded 'yes', 'no' and 'undecided' in the ratio of 59 : 6 : 21Find how many students answered 'yes'.
Answers
The first option was ‘yes’ and the first number was 59.
Answer:
Step-by-step explanation:
59 would be yes as it was the first option.
Help Me please in my home work
Answers
Answer:
x=157°
Step-by-step explanation:
opposite angles are equal so the angle opposite the 45° is also 45°
angles around a point add to 360°
so if we take away both the 45° we are left with the two other angles, one of them part of the triangle
360°-45°45°=270°
divide this by 2 to get the 2 angles
270°÷2=135°
angles in a triangle add to 180°
180°-22°-135°=23°
23° is the other angle in the triangle next to x
finally angles on a straight line add to 180°
180°-23°=157°
so x=157°
Find the sum or difference. Reduce your answer to the simplest form.
1) 1/3 + 1/9
2) 1/4 + 7/8
3) 5/8 – 1/2
4) 2/3 – 1/6
5) 1/3 + 7/12
6) 1/2 + 4/5
7) 5/6 – 3/4
8) 3/4 + 5/6
Answers
Answer:
4/9, 9/8 or 1 1/8, 1/8, 3/6 or 1/2, 11/12, 13/10 or 1 3/10, 1/12, 19/12 or 1 7/12
PLEASE HELP I DON'T UNDERSTAND THIS AT ALL
Answers
Step-by-step explanation:
you'll use the previous date t fine the difference ex. if yesterday was 80 degrees and today's is 84 the difference would be 4 degrees. hope this helps a bit ( I'm pretty sure this is correct also remember if you need ask teacher for help!!)
Answer:
Step-by-step explanation:
Basically you have to look at the forecast each day and find the lowest and highest tempreature that day and find the difference and subract the two numbers of the tempreature.
At a skateboard shop:
a) The price tag on a shirt says $12.58. Sales tax is 7.5% of the price. How much will you pay for the shirt? Show your work
b) The store buys a helmet for $19.00 and sells it for $31.50. What percentage was the markup? Show your work
c) The shop pays workers $14.25 per hour, plus 5.5% commission. If someone works 18 hours and sells $250 worth of merchandise, what is the total amount of their paycheck for this pay period? Show your work
Answers
Answer:
a= 7.5%12.58= 0.9435 round 0.94+12.58= 13.52
b= 31.50 divided by 19.00= 1.65789474 round 1.66
c= (14.25 x 18)+ (5.5%250)
l l
v v
256.50 + 13.75 = 270.25
Step-by-step explanation:
Please remember its estimation, not exact numbers.
Answers
estimation my guess
55
Step-by-step explanation:
Find the volume of a prism. Show your work.
Answers
Answer:
Step-by-step explanation:
11 times 22
the area of its cross-section multiplied by the length
answer: 242cm squared