Answer: 279.3
Explanation:
Mean is the sum of all numbers added together, divided by how many numbers are in a sequence.
121+347+45+21+300+614+312+333+421= 2514
2514÷9=279.333..
Add the algebraic expressions.
a. -6p²+8q² - 2pq- 5 and 2p² -3q² -2pq+3
b. 5x+6y and -8x -3y
Grade8
Answer:
a= -4p^2 - 4pq + 5q^2 - 2
b= -3x + 3y
Step-by-step explanation:
What is (-6) less than 0
Answer: +6
Step-by-step explanation:
0 - (-6)
= 0+6
= 6
A town is designing a rectangular park that will be 600 feet wide by 1000 feet long. On a scale drawing, the dimensions of the park are 12 inches wide by 20 inches long. A rectangular area of the park for swing sets is 0.5 inch wide by 2 inches long on the scale drawing.
What is the actual length of the swing set area of the park?
Enter your answer in the box.
The actual length of the swing set area of the park is ______ feet.
Answer: The actual length of the swing set area of the park is 25 ft long and 100 ft wide.
For a particular scale drawing, it is already specified that all the measurements' some constant scaled version will be taken. For example, let the scale be K feet to s inches.
Then it means
All feet measurements will then be multiplied by s/k to get the drawing's corresponding lengths.
For the given case, it is given that Real dimension of a rectangular park: 600 ft by 1000 ft In drawing, it was of 12 inches by 20 inches. Let the scale that the drawing is using be k feet to s inches, then.
Since it is given that 600 ft: 12 inches and 1000 ft: 20 inches, thus, we get: Thus, every foot is reduced 0.02 times in drawing.
Now, it is given that in drawing, the rectangular area for swing sets is 0.5 inch to 2 inch. Let its real length was L and real width was W. Then we have:
Since these are only magnitudes, and unit was converted from feet to inches, so we have L = 25 feet and W = 100 feet
Thus, the actual length of the swing set area of the park is 25 ft long and 100 ft wide
Answer:
The dimensions of the park on the scale drawing is 12 inches and 20 inches.
Dimension
Actual dimensions:
Park = 600 feet by 1000 feet
Swing set = 25 feet by 100 feet
Swing set on the scale drawing= 0.5 inch by 2 inches
Hence:
Dimension of park on drawing:
Width = 600×1/50
Width = 12inches
Length = 1000×1/50
Length= 20inches
Inconclusion the dimensions of the park on the scale drawing is 12 inches and 20 inches.
A cell phone company is offering 2 different monthly plans. Each plan charges a monthly fee pulls an additional cost per gigabyte of data used.
Plan A: $50 fee plus $7.50 per gigabyte of data
Plan B: $60 fee plus $5.00 per gigabyte of data
Which plan would be the least expensive for someone who uses 6 gigabytes of data?
i need help with a lot of stuff sooo
Answer:
70
Step-by-step explanation:
3m + 3m + 12m + 3m + 3m + 14m + 18m + 14m
The reason I added 18m in there is because the bottom line is 18m. If the top line is 12m, then you add 3m on each side, making it 18m.
Have a nice day and please mark brainliest!
can you solve for pi
Answer:
No
Step-by-step explanation:
Pi (π) is a mathematical constant representing the ratio of a circle's circumference to its diameter. It is an irrational number, which means it cannot be expressed as a finite decimal or a fraction. Therefore, it is not possible to solve for pi in the traditional sense.
However, pi can be approximated to a certain number of decimal places using various mathematical methods, such as the Monte Carlo method or numerical integration. The commonly used approximation for pi is 3.14159265358979323846, but the actual value of pi has an infinite number of decimal places and cannot be fully calculated.
Answer:
You can't
Step-by-step explanation:
Pi is already a constant rate if that is what you want to call it. pi is 3.14159265359
PLEASE HELP! Due TODAY:
Write equation to represent the relationship between d(distance traveled) and t(time). Use given variables (lower case), no spaces.
Answer:
y=2x
Step-by-step explanation:
this is because if you divide 120 by 60 you get 2
least to greatest -1, -1/2, -1/4, 1/8, 3/4
Answer:
-1, -1/2, -1/4, -1/8, 3/4
Answer: -1, -1/2, -1/4, 1/8, 3/4.
Step-by-step explanation:
2 Sasha believes her soccer team plays better at away games than at home games. Her team played 12 games at home and 12 games away. She recorded the wins over this season. Based on these results, what is the probability for home and away wins? Is she right about her team playing better away? Show your work. Place: Home Away
Step-by-step explanation:
To calculate the probability of home and away wins, we need to know how many wins the team had at home and away, respectively.
Let's assume that the team won x games at home and y games away, where x and y are unknown variables. Then we know that:
x + y = total number of wins (which we'll denote as W)
x + (12 - y) = 12 (the number of home games)
(12 - x) + y = 12 (the number of away games)
Solving these equations for x and y, we get:
x = (W + 12) / 2 - 12
y = (W + 12) / 2 - 12
Now, let's say the team won 8 games in total. Then, using the equations above, we can calculate that:
x = 2 (i.e., they won 2 games at home)
y = 6 (i.e., they won 6 games away)
Therefore, the probability of a home win is 2/12 = 1/6, and the probability of an away win is 6/12 = 1/2.
Based on these calculations, Sasha is correct in her belief that the team plays better away. The probability of an away win is higher than the probability of a home win.
HURRY!
The three vehicles shown below are driving down the street at a constant velocity of 5 m/s. The blue car has a mass of 700 kg. The red car has a mass of 1800 kg. The silver pickup truck has a mass of 3500 kg. Annie-Drew wants to make a line graph showing the relationship between the kinetic energy and mass of the cars traveling at a constant velocity. What would the graph look like?
Answer:
Step-by-step explanation:
As the change in speed of both cars is zero therefore tangential acceleration of both cars will be zero .
now centripetal acceleration is given by
a=v2/r
where, r= radius and v= linear velocity ,
for blue car ab=302/r
for grey van ag =152/r
radius is same for both as they round the same turn ,
So, ab /ag = 30 2/15
2 =4 or a
b =4a/g
The frequency table below shows a student’s quiz scores. One data value in the table is missing. If the mean of the data set is 2.2, what is the score for the missing data item?
A. 0
B. 1
C. 2
D. 3
Answer:Answer is B
Total scores/total frequency =mean
54/24=2,25
If you added a score of 1
55/25=2,2
Step-by-step explanation:
hope it helps you
The orange shape is a dilation of the black shape. What is the scale factor of the dilation?
Answer: 1/3
1/3 × 15 = 5
1/3 × 6 = 2
Step-by-step explanation:
A vine, which was 2 feet high, grew 18% over two weeks. How high was the vine after two weeks?
Answer:
4ft high
Step-by-step explanation:
PLEASE HELP!!! Read part A and B written out and explained for the quiz not just the answer!!
Question for points :3
The base of a parallelogram is 14 inches, The area of the parallelogram is 98 square inches. Find h the height of the parallelogram.
Answer:
7 inches
Step-by-step explanation:
The formula for the area of a parallelogram is given by A = bh, where A is the area, b is the base, and h is the height.
The parallelogram base is 14 inches, and the area is 98 square inches. Substituting these values into the formula, we get:
98 = 14h
Solving for h, we can divide both sides by 14:
h = 7
Therefore, the height of the parallelogram is 7 inches.
1/5 divided by 3 pls help need it quick!
Answer:
[tex] \frac{1}{15} [/tex]
Step-by-step explanation:
[tex] \frac{1}{5} \div 3 = \frac{1}{5} \div \frac{3}{1} = \frac{1}{5} \times \frac{1}{3} = \frac{1}{15} [/tex]
Answer:
1/15
Step-by-step explanation:
If angle 5 is 48°, what is the measure of angle 7? How do you know?
Step-by-step explanation:
angle 7 is also 48° because opposite angles are equal
The graph represents a relation where x represents the independent variable and y represents the dependent variable. a coordinate plane with points at negative 5 comma 1, negative 3 comma 0, 0 comma negative 3, 2 comma 3, 5 comma negative 1, and 5 comma 1 Is the relation a function? Explain. No, because for each output there is not exactly one input No, because for each input there is not exactly one output Yes, because for each output there is exactly one input Yes, because for each input there is exactly one output
Answer:
To determine whether the relation is a function or not, we need to check if each input value (x) is associated with exactly one output value (y).
Looking at the given set of points (-5, 1), (-3, 0), (0, -3), (2, 3), (5, -1), and (5, 1), we can see that some of the input values are associated with more than one output value. Specifically, the input value of 5 is associated with two different output values: -1 and 1.
Therefore, the relation is not a function because there is not exactly one output value for each input value.
The correct answer is: No, because for each input there is not exactly one output.
Answer:
Step-by-step explanation:
Answer:
To determine whether the relation is a function or not, we need to check if each input value (x) is associated with exactly one output value (y).
Looking at the given set of points (-5, 1), (-3, 0), (0, -3), (2, 3), (5, -1), and (5, 1), we can see that some of the input values are associated with more than one output value. Specifically, the input value of 5 is associated with two different output values: -1 and 1.
Therefore, the relation is not a function because there is not exactly one output value for each input value.
The correct answer is: No, because for each input there is not exactly one output.
milk seller had 23.45 L. milk. He added 3.625 L water to it. How much was the quantity of the resultant mixture?
Answer:
27.075L
Step-by-step explanation:
final quantity the milk seller had = milk before adding Water + water added
23.45 + 3.625
27.075L
Answer:
Step-by-step explanation: given: quantity of milk=23.45
quantity of water=3.625
(he added 3.625 L water in the 23.45L milk)
quantity of milk+quantity of water
23.45+3.625
=27.075L
therefore, quantity of resultant mixture is 27.075 Liter
a square pyramid and a cube have the same total surface area. The length of each side of the base of the square pyramid is 12 meters. The width of the cube is 6 meters. What is the lateral height of the square pyramid?
Please help me with this question
A number s minus 2.4 is at least 8 ( please I need this quick)!?
i think bro still needs the answer
Match each scenario to the absolute value expression that describes it.
1. the amount of change when the temperature rises from 5°C to 13°C
2. the change of an account balance when spending $8
3. the change in depth when diving down 7 meters in the ocean
4. the amount of improvement when increasing your grade by 7 points
5. the change in height when climbing a 5-foot wall
6. the distance moved when going backwards five spaces in a board game
|+7|
|+8|
|-7|
|-8|
|+5|
|-5|
Step-by-step explanation:
1) +8
2) -8
3) -7
4) +7
5) +5
6) -5
:)
I need this right now
Answer:
b = 17
Step-by-step explanation:
PLEASE HELP ASAP NEED PROVE AND ILL GIVE BRANLIST IF YOU ARE CORRECT
Options
A 1/2
B 2
C 1/4
D 4
Answer:
It will be an option A) 1/2
Step-by-step explanation:
Answer: A
Step-by-step explanation:
someone, please help me. I need this done by today. Also, if you do do it, can you write part a and then part B
Answer:
Step-by-step explanation:
Part A: step 1 is correct, step 2 is wrong. Right side of the equation should be 12 - 21 = -9
Part B:
-14x + 21 = 30x + 12
-14x - 30x = 12 - 21
-44x = -9
x = -9/-44 = 9/44
This Stem-and-Leaf Graph represents the students’ test scores in History. What is the median for the data in this Stem-and-Leaf plot?
A. 52
B. 59
C. 65
D. 73
Answer:
C. 65
Step-by-step explanation:
The 5 stem has scores of 52, 55, and 57.
The 6 stem has scores of 64, and 66.
The 7 stem has scores of 73, 75, and 79.
Together, the data is: 52, 55, 57, 64, 66, 73, 75, and 79.
The median is the middle number. We can cross out the two outside numbers and go in from there.
52 and 79 are crossed out. 55 and 75 are crossed out. 57 and 73 are crossed out.
When there are two numbers in the middle instead of one (ideally, the one left after this process is the answer), you go between those. Between 64 and 66 is 65.
A 55-gallon barrel was filled to the brim and was left out in the open. 12% of the water was lost after three days of evaporation. Find the volume of water in the barrel after three days.
Answer
1. Serena has 1,532 photographs. She has 40 photo albums. Each album holds 36 photographs. Does Serena have enough albums to hold all the photographs?
2. A group of 1,058 people are called in for jury duty. A jury is made up of 12 jurors and 2 alternates. How many complete juries can be formed from the jury pool?
3. Gary's backpack weighs 1.2 pounds. His math textbook weighs 3.75 pounds, and his science textbook weighs 2.85 pounds. How much will his backpack weigh with the math and science textbooks in it?
4. Steven made punch by mixing 2.8 liters of orange juice, 0.75 liters of pineapple juice, and 1.2 liters of sparkling water. How many liters of punch did Steven make?
#1:
Serena does not have enough albums to hold all the photographs.
Work:
40*36 = 1440
#2:
A group of 1,058 people is called in for jury duty.
Work:
A jury is made up of 12 jurors and 2 alternates.
1 jury = 12 jurors + 2 alternates = 14 members
So, the number of complete juries that can be formed is
= 1058/14 = 75.57
#3:
Gary's backpack will weigh 7.8 pounds with the math and science textbooks in it.
Work:
Total weight = backpack weight + math textbook weight + science textbook weight
Total weight = 1.2 + 3.75 + 2.85
Total weight = 7.8 pounds
#4:
Steven made 4.75 liters of punch.
Work:
Liters of Punch = orange juice + pineapple juice + sparkling water
Liters of Punch = 2.8 + 0.75 + 1.2
Liters of Punch = 4.75
Daksha would like to save at least $500 in 12 months. What is the minimum amount she must save each month in order to save at least $500?
Answer:
$41.67
Step-by-step explanation:
To save at least $500 in 12 months, Daksha must save an average of at least $500/12 = $41.67 per month.
To find the minimum amount she must save each month, we can assume she saves a constant amount each month, and solve for that amount.
Let x be the amount she saves each month. Then over 12 months, she will have saved 12x dollars. To meet her goal of saving at least $500, we need:
12x ≥ 500
Solving for x, we get:
x ≥ 500/12
x ≥ 41.67
Therefore, Daksha must save at least $41.67 each month to save at least $500 in 12 months.
Find the missing side of a right triangle if
a. area = 46cm 2 , base = 23cm
b. area = 120cm 2 , base = 40cm
c. area =12m 2 , base = 20m
Grade#8
Answer:
a. The area of a triangle is given by the formula A = (1/2)bh, where b is the base and h is the height. We know that A = 46cm^2 and b = 23cm. Substituting these values into the formula, we get:
46cm^2 = (1/2)(23cm)(h)
Simplifying, we get:
46cm^2 = 11.5cm*h
Dividing both sides by 11.5cm, we get:
h = 4cm
Therefore, the missing side of the right triangle is 4cm.
b. Using the same formula, we can find the height of the triangle:
120cm^2 = (1/2)(40cm)(h)
Simplifying, we get:
120cm^2 = 20cm*h
Dividing both sides by 20cm, we get:
h = 6cm
Therefore, the missing side of the right triangle is 6cm.
c. Again, using the same formula, we can find the height of the triangle:
12m^2 = (1/2)(20m)(h)
Simplifying, we get:
12m^2 = 10m*h
Dividing both sides by 10m, we get:
h = 1.2m
Therefore, the missing side of the right triangle is 1.2m.