Answer:
Step-by-step explanation:
y - 2 = 1/2(x + 2)
y - 2 = 1/2x + 1
y = 1/2x + 3
Which statement is true about a trend line?
Answer:
Its b
Step-by-step explanation:
I did the test...
The correct statement about a trend line is: A trend line and a regression line are equivalent terms.
A trend line and a regression line are NOT equivalent terms. They refer to different concepts in data analysis.
1. Trend Line:
A trend line, also known as a line of best fit, is used to represent the general direction or pattern of a dataset. It is a straight line that fits through the data points in a scatter plot to show the overall trend in the data. The primary purpose of a trend line is to identify the underlying pattern or tendency of the data points. Trend lines can be linear or nonlinear, depending on the nature of the data.
In simple terms, a trend line helps us visualize whether the data is increasing, decreasing, or following a specific pattern over time or across a range of values.
2. Regression Line:
A regression line is a specific type of trend line used in linear regression analysis. Linear regression is a statistical method that examines the relationship between two or more variables to predict an outcome. It finds the "best-fit" straight line that minimizes the sum of the squared differences between the actual data points and the predicted values.
The regression line represents the relationship between the independent variable(s) (usually denoted as 'X') and the dependent variable (usually denoted as 'Y'). It provides an equation of the form Y = a + bX, where 'a' is the y-intercept and 'b' is the slope of the line. The regression line serves as a predictive model to estimate the value of the dependent variable based on the values of the independent variable(s).
- A trend line represents the general direction or pattern of a dataset.
- A regression line is a specific type of trend line used in linear regression to predict outcomes based on the relationship between variables.
Therefore, the correct statement is: A trend line and a regression line are NOT equivalent terms.
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2. cos 0°
a) sin 1° b)
c) sin 90° d) tan 90°
B)cos 1°
Answer:
sin 90
Step-by-step explanation:
cos (0)
Using the unit circle, we know that cos 0=1
sin 1 and cos 1 are not equal to 1
sin 90 =1
tan 90 = sin 90/ cos 90 = 1/0 =undefined
can someone help me with this tooo !
protocol for flushing a cooling water system at a nuclear reactor requires that a drain valve be opened while the fill pumps are active. the drain valve can empty the tank to thr cut-off in 10 minutes. the pump can fill the rank from the cut-off in 14 minutes. during the flushing process, how long will it take for the initially full tank to reach the cut-off level while following the protocol?
Answer:
Step-by-step explanation:
drain empties 1/10 of the desired amount per minute
pump fills 1/14 of the desired amount per minute
when both are active, the net drain is 1/10-1/14 = 1/35 of the desired amount per minute
It takes 35 minutes to reach the cut-off level.
I realise that i am responsible for my own happiness essay 200 and 25
Answer:
um
Step-by-step explanation:
what im confused
if the angle of elevation from the point on the ground to the top of the tree is 34° and the point is 25 feet from the base of the tree what is the height of the tree? The answer is 16.9 but I need help with part 2 “if the tree grows an additional 10 feet, what is the new angle of the elevation from the point 25 feet from a he base of the tree to the top of the tree? A) 42.3° B) 47.1° C) 49.8° D) 54.6°
Answer:
It’s c I did it on USA test prep
Step-by-step explanation:
Graph y - 3 = 1/2 (x + 2)
Answer:
Step-by-step explanation:
y - 3 = 1/2 (x + 2)
y - 3 = x/2 + 1
y = x/2 + 4
slope: 1/2
y-intercept: (0, 4)
x | y
-8 | 0
0 | 4
HURRY PLEASEEEEE!!!
Anna and her sister Bella are making baby blankets to sell at a boutique. Anna has already completed 5 blankets and can finish 7 more blankets per day. Bella has already completed 2 blankets and can finish 8 more blankets per day. At some point, they will have completed the same number of blankets. How long will that take? How many blankets will each woman have made?
Answer:
5.5 or 5 or 6
Step-by-step explanation:
anne=5+7=12(blankets per day)
bella=2+8=10 (blankets per day)
We need to use the 12 times table and 10 times table and see when they meet up
12, 24, 36, 48, 60
10, 20, 30, 40, 50, 60
it will take 5.5 days or 5 or 6
how do you determine how many variables are part of the GCF on any factoring problem?
Answer:
Factor each coefficient into primes. Write all variables with exponents in expanded form.
List all factors—matching common factors in a column. ...
Bring down the common factors that all expressions share.
Multiply the factors as in (Figure).
Step-by-step explanation:
Jordyn is weighing ingredients on a kitchen scale. The bowls weighs 1 1 2pounds. He adds several scoops of flour. The total weigh of the bowl and flour is 3 pounds. Each cup of flour weighs 1 4pounds. Solve the equation 1 1 2+ 1 4c = 3 to see how many cups of flour he adds.
Answer:
6cups
Step-by-step explanation:
Given the equation
1 1/2 + 1/4c=3
We are to find the value of c
3/2 + c/4 = 3
c/4 = 3 - 3/2
c/4 = (6-3)/2
c/4 =3/2
Cross multiply
2c = 3×4
2c = 12
c =6
Hence he adds 6cups of flour
A Write an equation for the hanger diagram and then us the sketch to show how to solve the equation algebraically.
Answer:
3x + 1 = 7
Step-by-step explanation:
3x + 1 = 7 Subtract 1 from both sides
3x = 6 Divide 3 from both sides
x = 2
when Laura was a store manager at a movie store, she made 500 dollars a week
Answer:
yea, so what's the question?
Step-by-step explanation:
Is that the question??
Step-by-step explanation:
The list below shows the tips earned by Cody while working at Olive Garden. $20, $45, $30.50, $46, $50 What is the mean of the tips earned by Cody?
Answer:
$38.30
Step-by-step explanation:
Mean is a measure of central tendency. It is the average of a set of numbers. It is determined by adding the numbers together and dividing it by the total number
Mean = sum of the numbers / total number
Sum of the numbers = $20 + $45 + $30.50 + $46 + $50 = $191.50
Total number = 5
Mean = $191.50 / 5 = $38.30
Help me out with this question (geometry)
Answer:
it will be (5,3) it think
Step-by-step explanation:
find the value of given expression
[tex] \sqrt{121 \times 11 \times 11} [/tex]
Answer:
√{121×11×11}=√(11²×11²)=±11²=±121
The standard form of the equation of a parabola is x = y2 + 6y + 1. What is the vertex form of the equation? O A. x = (y + 3)2 - 8 O B. x = (y + 6)2-11 O C. x = (y + 6)2-35 O D. x = (y + 3)2-5
Answer:
A
Step-by-step explanation:
Given
x = y² + 6y + 1
To complete the square
add/subtract ( half the coefficient of the y- term )² to y² + 6y
x = y² + 2(3)y + 9 - 9 + 1
= (y + 3)² - 8
The vertex form of the equation of a parabola is,
⇒ x = (y + 3)² - 8
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The standard form of the equation of a parabola is,
⇒ x = y² + 6y + 1.
Now, We can simplify as;
⇒ x = y² + 6y + 1
⇒ x = y² + 6y + 9 - 9 + 1
⇒ x = (y + 3)² - 8
Thus, The vertex form of the equation of a parabola is,
⇒ x = (y + 3)² - 8
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Josie makes fruit punch by mixing fruit juice and lemonade in the ratio 3:2
She needs to make 35 litres of punch for a party.
How much of each ingredient does she need?
Fruit juice =
Lemonade =
Answer:
fruit-21
lemonade -14
Step-by-step explanation:
to find out how many parts you have you add 3 and 2 together, this gives you 5, 36÷5=7 so for every 1 of each you have 7, 3×7=21, 2×7=14
Answer:
Step-by-step explanation:
F/L=3/2
F=3L/2
F+L=35, using F found above makes this become
3L/2+L=35
3L+2L=70
5L=70
L=14, since F=3L/2
F=3(14)/2
F=21
So she needs
Fruit juice=21 liters
Lemonade=14 liters
Cari is searching online for airline tickets. Two weeks ago, the cost to fly from Hartford to Boston was $250. Now the cost is $370. What is the percent increase? What would be the percent increase if the airline charges an additional $50 baggage fee with the new ticket price? The percent increase of the airline ticket is ...
Answer:
The percent of the air ticket went up 148% plus the baggage fee would be 168%. The new total is 420$
Step-by-step explanation:
which graph represents a function?
Answer:
D
Step-by-step explanation:
Its going in a direction that might go somewhere so I think D hope this helps
The 30 members of a choir are trying to raise at least $1,500 to cover travel costs to a singing camp. They have already raised $600. Which inequality could you solve to find the average amounts each member can raise that will at least meet the goal?
Answer:
30x + 600 is greater than or equal to 1,500
x is the amount each member would have to raise.
x = 30
Each member needs to raise at least $30
Which equation represent the line that passes through the points (-4,3) and (2,-12)
20% of a is 11. what is a?
Answer:
55
Step-by-step explanation:
20%=1/5 so the inverse would be 5 so 5x11=55
Answer:
55
Step-by-step explanation:
PLSS HELP ME I DONT KNOW THIS SO PLSSS!!
Given the following numbers find the mean, median, and mode.
Numbers: 7,3,2,1,13,8,1,5,14,11,15,3,1
PLSSS HELP ME!! :(
Answer:
Mean-6.3 (3 repeating)
Median-5
Mode-1
Step-by-step explanation:
Mean-Add all numbers together and divide by 12 (because is 12 numbers)
Median- List numbers From least to greatest and cross one off of each end until you meet in the middle
Mode- find the number that occurs the most
x + 318 = 718 x = x – 212 = 634 x =
x – 3.23 = 0.77 x =
Whats the answer to this question plz
1. x=13
2. m<OME=128
Step-by-step explanation:
1. 5x=65
x=65÷5
x=13
2. 4x+2x-12=180
6x-12=180
6x=180+12
6x=192
×=32
<OME=4×(32)
<OME=128
Answer:
1) x=13
2)m<OME=128.
Step-by-step explanation:
1) 5x=65
x=65:5
x=13
2) 4x+2x-12=180
6x-12=180
x=32.
[tex] {x}^{2} - 18 < 0[/tex]
Answer
-sqrt(18)<x<sqrt(18)
Step-by-step explanation:
Factorise:(x-sqrt(18))(x+sqrt(18))<0Critical values:-sqrt18 and sqrt18Use number line or graphical methodMark is putting a round fountain in his backyard. He decides to place bricks around the edge of the fountain. If the radius of the fountain is 1.5 feet, what is the length of the brick edge?
Answer: 9.42ft :)
Step-by-step explanation: Your Welcome!!!
20 out of 800 products were found to be defective. At the same rate, how many defective parts will be found in 40,000 products? There would be Blank 1 defective parts out of 40000.
Answer: 1,000 products
Step-by-step explanation:
If 20 out of 800 products are found to be defective, the percentage of defective products would be:
= 20 / 800
= 2.5%
At this same rate of 2.5%, if there are 40,000 products instead of 800, the number of defective products would be:
= 2.5% * 40,000
= 1,000 products
pls ,pls,plssss help my
plsss go ahead and tell your problem
3. PLZZZZ HELP MEEE!.!.!
Answer:
60in²
Step-by-step explanation:
Since lateral surface area means all the shapes except the base, we will ignore the square in the middle.
A=1/2(b*h)
A=1/2(10*3)
A=15in²
Now we will multiply the area by 4 or the number of other shapes besides the base.
60in²