Answers
Answer:
the 3rd one
Step-by-step explanation:
A proportional relationship has to have a Stright line. Hope this helps :)
Related Questions
1/4 divided by 1 1/8
pls help ill give big brain
Answers
1/4 divided by 9/8
keep change flip
keep the 1/4, change divide into multiplication, flip 9/8
1/4 * 8/9
8/36
2/9
Answer:
2/9
Step-by-step explanation:
1/4 divided by 1 1/8.
First rewrite 1 1/8 as an improper fraction.
You now have 1/4 divided by 9/8.
When dividing by a fraction you multiply by the reciprocal.
You now have 1/4 * 8/9.
Now Multiply the numerators across and the denominators across to get 8/36.
Simplify the fraction. 2/9
can someone help me!
Answers
What is the mode of this data set: 17, 13, 18, 20, 17, 15, 12
A)19
B)17
C)16
D)20
Answers
Answer:
17
Step-by-step explanation:
it occurs the most number of times
Answer:
17
Step-by-step explanation:
mode = most occuring number in a data set
The table shows the multiplication of two linear expressions. Select the correct reason for each step.
Reason 1:
Reason 2:
Reason 3:
Reason 4:
Answers
Answer:
Step-by-step explanation:
reason 1:
opening of brackets to solve the expression
reason 2:
in multiplication order is followed i.e. the number always lead the variable in the expression
reason 3:
for clarification brackets are added to multiply like terms i.e. numbers with numbers and variable with the variable
reason 4:
the solved and simplified expression is delivered as a result
evalute the experssion -280+12x=
Answers
Wat is the product of 8/9 and 2/7
Answers
Answer:
16/63
Step-by-step explanation:
Given problem,
→ (8/9) × (2/7)
Let's solve the problem,
→ (8/9) × (2/7)
→ (8 × 2)/(9 × 7)
→ 16/63
Hence, answer is 16/63.
Referring to the Fig. in Question #7, think about spinning this spinner, which is
divided into 8 equal segments. Give the probability in simplest form.
P(even) =
Answers
Answer: 1/4
Step-by-step explanation: because there is only 4 on there so it would be 1/4
Answer:
P(even)=5/8
Step-by-step explanation:
count the amount of even numbers so there is 3 2s and 2 4s so 5 even numbers
count the amount of odd numbers so there is 2 1s and a 3 so 3 odd numbers
add the total amount of numbers so 8 and as there is 5 even the answer is 5/8
Which scenario can be modeled by the linear function
y = -15x + 500?
A. The temperature on Jupiter is
15℉ and increases by 500℉ every day.
B. There is a population of 500 giraffes in Western Africa that decreases by 15 giraffes each year.
C. A carpet cleaning service charges $500 plus an additional $15 for every hour.
D. A membership fee for a movie streaming service is free, but each rental costs $15.
Answers
A toy company is building dollhouse furniture. A rectangular door of a dollhouse has a height of 7 centimeters and a width of 3 centimeters. What is the perimeter of the door on a scale drawing that uses the scale 3:5?
33 cm
20 cm
14 cm
12 cm
I will give brainiest and thanks if answer is right.
Answers
Answer:
12 cm
Step-by-step explanation:
In the picture
Answer: 33cm
Step-by-step explanation:
To find the perimeter of the door on the scale drawing, we first need to determine the dimensions of the door on the scale drawing.
The scale given is 3:5, which means that every 3 centimeters in real life corresponds to 5 centimeters on the scale drawing.
To find the height of the door on the scale drawing, we multiply the real-life height of 7 centimeters by the scale factor:
7 cm * (5 cm/3 cm) = 35/3 cm ≈ 11.67 cm
To find the width of the door on the scale drawing, we multiply the real-life width of 3 centimeters by the scale factor:
3 cm * (5 cm/3 cm) = 5 cm
Now that we have the dimensions of the door on the scale drawing (height: 11.67 cm and width: 5 cm), we can calculate the perimeter.
The perimeter of a rectangle is found by adding up all the sides. In this case, we have two sides of length 11.67 cm (height) and two sides of length 5 cm (width).
Perimeter = 2 * (11.67 cm) + 2 * (5 cm) = 23.34 cm + 10 cm = 33.34 cm
Therefore, the perimeter of the door on the scale drawing is approximately 33.34 cm.
Since the answer choices are given in whole numbers, the closest option to the calculated perimeter is 33 cm.
A group of students was surveyed in a middle school class. They were asked how many hours they work on math homework each week. The results from the survey were recorded.
Number of Hours Total Number of Students
0 1
1 3
2 2
3 10
4 9
5 7
6 3
Determine the probability that a student studied for exactly 4 hours. Round to the nearest hundredth.
0.74
0.35
0.26
0.11
PLEASE HELP ASAP!!!!!
Answers
From the given data, we can see that the total number of students surveyed is:
1 + 3 + 2 + 10 + 9 + 7 + 3 = 35
And the number of students who studied for 4 hours is:
9
Therefore, the probability that a student studied for exactly 4 hours is:
9/35 = 0.26 (rounded to the nearest hundredth)
So the correct answer is 0.26.
What is the LCD of 6/7,3/5 , and 1/4 ?
Answers
Answer:
140
Step-by-step explanation:
Answer:
120/140 and 84/140 and 35/140
Step-by-step explanation:
Which formula is used to calculate the standard deviation of sample data?
2.
X, - x
+ X2-X
+ ... + X-X
(1928)
s=1
n-1
(x1 - x)2 + (x2-x) +...+(XN-)?
2
11
N
w
(x1 - x)+ (x2-x)2 +...+(x+4) ?
N
2
Xq- x
-3)
+ X2-X
+
+ X
S=
n-1
Answers
Answer:
The first option from the picture
Step-by-step explanation:
In the picture attached, the question is shown.
In the first option:
s is the standard deviation\( x_1, x_2, \dots, x_n \) are the members of the sample\( \bar{x} \) is the sample meann is the number of members in the sample
The formula for calculating the standard deviation of sample data is expressed as \(\sigma=\sqrt{\frac{\sum(x_1-\overline x)^2+(x_2-\overline x)^2+...(x_n-\overline x)^2)}{N} }\)
What is a standard deviation?The standard deviation is a measure of the amount of variation or dispersion of a set of values.
A lower value of the standard deviation shows that value is close to the mean otherwise it is far from the mean
The formula for calculating the standard deviation of sample data is expressed as:
\(\sigma=\sqrt{\frac{\sum(x_1-\overline x)^2}{N} }\)
Assume we have the following data x1, x2, ....xn, the standard deviation will be given as:
\(\sigma=\sqrt{\frac{\sum(x_1-\overline x)^2+(x_2-\overline x)^2+...(x_n-\overline x)^2)}{N} }\)
Learn more on standard deviation here: https://brainly.com/question/475676
Plz help A system of equations is given below.
y = negative 3 x + 6 and y = 6 minus 3 x
Which of the following statements best describes the two lines?
They have different slopes and different y-intercepts, so they have no solution.
They have different slopes and different y-intercepts, so they have one solution.
They have the same slope and the same y-intercept, so they have no solution.
They have the same slope and the same y-intercept, so they have infinitely many solutions.
Answers
Answer:
They have different slopes and different y-intercepts, so they have no solution
Step-by-step explanation:
mark me as brainlest
Answer:
D) They have the same slope and the same y-intercept, so they have infinitely many solutions.
Step-by-step explanation: When I took the test and copied the answer on the answer above I got It wrong. For me it turned out to D
How many solutions does the system of linear equations represented in the graph have?
One solution at (2, −3)
One solution at (−3, 2)
No solution
Infinitely many solutions
Answers
Answer:
(2, -3)
Step-by-step explanation:
their is one solution at (2,-3) because that is where the two lines intercept eachother
Please help!! I will give brainly to the correct understandable answer!!
Answers
Answer
Here's a photo and I hope hope this helps!!
Step-by-step explanation:
The blue lines are for question 1, The pink lines are for question 2 and the black lines are for question 3.
Answer: please check the document :)
ANSWER ASAP!! I GIVE BRAINLIEST!!
Do not do #1 but plz answer the rest
show work
Answers
2. 3x - 5y = -2
x + 3y = 4
Let us multiply equation 2 by three, so we can use the elimination method.
3x + 9y = 12
Now, let us subtract equation 1 from equation 2.
3x + 9y - 3x + 5y = 12 + 2
14y = 14
y = 1
Let us substitute this value of y in equation 2.
x + 3(1) = 4
x = 4 - 3
x = 1
3. -3x + 3y = -6
6x + 4y = 42
Let us multiply equation 1 by 2, so we can use the elimination method.
-6x + 6y = -12
Let us now add equations 1 and 2, so as to eliminate x.
6x + 4y -6x + 6y = 42 - 12
10y = 30
y = 3
Let us now substitute this value of y in equation 1, so as to find x.
-3x + 3(3) = -6
-3x + 9 = -6
-3x = -15
3x = 15
x = 5
4. 12x + 4y = 20
2x - 2y = -2
Let us multiply equation 2 by 2, so as to use the elimination method.
4x - 4y = -4
Let us now add equations 1 and 2, so as to eliminate y.
4x - 4y + 12x + 4y = -2 + 20
16x = 18
x = \(\frac{18}{16}\) = \(\frac{9}{8}\) = 1.125
Let us substitute this value of x in equation 2, so as to find y.
2(9/8) -2y = -2
9/4 - 2y = -2
-2y = -2 - 9/4
2y = 17/4
y = \(\frac{17}{8}\) = 2.125
use benchmarks to estimate the sum or difference-
1) 17/18-3/7
Answers
Answer:
Step-by-step explanation:
Note that 17/18 is almost equal to 1; consequently
17/18-3/7 is approximately 1 - 3/7, or 4/7
Which of the following scenarios could be accurately modeled using this diagram?
Juan Victor gave a gratuity of $25 on a bill that was $48.
Juan Victor gave a 25% gratuity of $12 on a bill that was $48.
Juan Victor gave a gratuity of $12 on a bill that was $100.
Juan Victor gave a 12% gratuity on a bill that was $25.
Answers
Juan victor gave a 25% gratuity of $12 on a bill that was $48 which is correct option(B).
What is percentage?Percentage is defined as ratio expressed as a fraction of 100.
Scenarios modeled using given diagram
Here, let gratuity \(s_1=s_2=s_3=s_4=25\) %
\(s_1+s_2+s_3+s_4=\)25%+25%+25%+25%=100%
25% of total bil $48 is $12
So, $12+$12+$12+$12=$48
Hence, Juan victor gave a 25% gratuity of $12 on a bill that was $48.
Learn more about percentage
brainly.com/question/24159063
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The height of Figure A is doubled to create Figure B. How will the surface area be affected?
The surface area will remain the same.
The surface area will double.
The surface area of Figure B will be greater than the surface area of Figure A.
The surface area of Figure B will be less than the surface area of Figure A.
Answers
Answer:
dont click the link
Step-by-step explanation:
Figure A = 52
Figure B = 92
So, the answer is C.
We can use this formula: A = 2(2wl + 2lh + 2hw) to find the surface area.
In figure B, 2 is the Length, 3 is the Width and 8 is the Height. According to the formula, this is what our problem will look like.
2· (3 · 2) + (8 · 2) + (8 · 3)
Let's solve for Figure B.
3 · 2 = 6
8 · 2 = 16
8 · 3 = 24
Now, add the answers up then multiply it by 2.
24 + 16 + 6 = 46 · 2 = 92
Like for Figure B, we can use this formula: A = 2(2wl + 2lh + 2hw) to find the surface area.
In figure B, 2 is the Length, 3 is the Width and 4 is the Height. According to the formula, this is what our problem will look like.
2· (3 · 2) + (8 · 2) + (4 · 3)
Let's solve for Figure B.
3 · 2 = 6
8 · 2 = 16
4 · 3 = 12
Notice that the measurements expect the height are the same.
Now, like we did on Figure A, add all then multiply by 2.
6 + 16 + 21 = 43 · 2 = 52
Let my know of any questions.
~ Lily, from Brainly.
Could someone please help me on this question? I need help!!
Answers
Answer:
Step-by-step explanation:
do you think you could take a closer up one then I will help you.
Which of the following equations are equivalent? Select three options. 2 + x = 5 x + 1 = 4 9 + x = 6 x + (negative 4) = 7 Negative 5 + x = negative 2\
Answers
x + 1 = 4
-5 + x = -2
x = 3 in all of these equations
Answer:id say the 2nd and 5th is right
Step-by-step explanation:if im wrong sorry
6y3 - 19 + 9y2 + (24 ÷ 6)
What is the value of the expression when y = 2?
A.
69
B.
15
C.
39
D.
107
Answers
Answer:
57
Step-by-step explanation:
When y=2, you just plug in the number 2 every time y appears in the equation.
Therefore, \(6*(2)*3-19+9*(2)*2+(24/6)...\\\)
Now that can be simplified by just multiplying/dividing out each term as needed
\(36-19+36+4\)
Now, all that is left to do is add everything together!
\(=57\)
It appears that none of the answers provided are correct. Maybe talk to your instructor about it also!
True or False?: The correct property for 5x7=7x5 is associative property.
Answers
Answer:
False
Step-by-step explanation:
5 * 7 = 7 * 5 demonstrates the commutative property, not the associative property.
Answer: False
Pls help me to find the median and mode, with solution pls
Answers
Answer:
Mode=32
Mean=32
Median=32
Step-by-step explanation:
Mode=highest frequency
Mode=10
Mean=£fx
£f
Mean=1280
40
=32
Median=n/2
=40/2
=20
median=32
Median-32
Hope this helpsssss
A triangular prism is attached to a rectangular prism as shown below.
If w = 8 inches, x = 5 inches, y = 20 inches, and z = 11.3 inches, what is the total surface area of the EXTERIOR FACES of the figure?
(Answer choices in picture!!) (I WILL GIVE BRAINLIEST)
Answers
Surface area of the triangular prism:
The triangular prism has two triangular faces and three rectangular faces.
The triangular faces have base (x) of 5 inches and height (y) of 20 inches. The surface area of each triangular face is (1/2) * base * height = (1/2) * 5 * 20 = 50 square inches.
The rectangular faces have dimensions (w, y, and z) of 8 inches, 20 inches, and 11.3 inches, respectively. The surface area of each rectangular face is length * width. Adding the surface areas of the three rectangular faces, we get: 2 * (w * y) + 2 * (w * z) + 2 * (y * z) = 2 * (8 * 20) + 2 * (8 * 11.3) + 2 * (20 * 11.3) = 320 + 180.8 + 452 = 952.8 square inches.
Surface area of the rectangular prism:
The rectangular prism has six rectangular faces.
The dimensions of the rectangular prism are (w, x, and y) of 8 inches, 5 inches, and 20 inches, respectively. The surface area of each rectangular face is length * width. Adding the surface areas of the six rectangular faces, we get: 2 * (w * x) + 2 * (w * y) + 2 * (x * y) = 2 * (8 * 5) + 2 * (8 * 20) + 2 * (5 * 20) = 80 + 320 + 200 = 600 square inches.
Total surface area of the exterior faces:
To find the total surface area of the exterior faces, we add the surface areas of the triangular prism and the rectangular prism: 50 + 952.8 + 600 = 1,602.8 square inches.
Therefore, the total surface area of the exterior faces of the figure is approximately 1,602.8 square inches. However, none of the given answer choices match this value. Please recheck the given dimensions or options provided.
Find the annual interest rate. Round to the nearest tenth of a percent if necessary.
Answers
Answer:
$18 + $150 + 6 years so the answer is 174
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.
Which of the following lists is in order from smallest to largest? 1.4, 1/4 ,14% 1/4 , 14%, 1.4 14%, 1/4 , 1.4 1.4, 14%, 1/4
Answers
List 1. 140%, 25%, 14%. This is from greatest to least, not least to greatest.
List 2. 25%, 14%, 14%. This is not from least to greatest, either.
List 3. 14%, 25%, 140%. This is from least to greatest.
List 4. 140%, 14%, 25%. This is not from least to greatest.
List 3 is from least to greatest. I got this answer by converting all of the fractions and decimals to percentages.
-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.
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.)