The scatterplot below charts the performance of an electric motor. 3000 2900 2800 2700 2600 2 2500 Speed of Rotation (in RPMs) 2400 2300 2200 2100 2000 0 1350 1400 1450 Voltage (in mV) 1500 1550 1600 1650 1700 1750 Which answer choice correctly indicates the explanatory variable and the response variable of the scatterplot? Explanatory variable: Rotation Response variable: Electric motor Explanatory variable: Voltage Response variable: Rotation Explanatory variable: Voltage Response variable: Electric motor Voltage (in mV) Which answer choice correctly indicates the explanatory variable and the response variable of the scatterplot? O Explanatory variable: Rotation Response variable: Electric motor Explanatory variable: Voltage Response variable: Rotation Explanatory variable: Voltage Response variable: Electric motor Explanatory variable: Rotation Response variable: Voltage
Answers
The answer choice which correctly indicates the explanatory variable and the response variable of the scatterplot include the following: B. Explanatory variable: Voltage Response variable: Rotation.
What is a scatter plot?In Mathematics, a scatter plot is sometimes referred to as scatter diagram, scatter chart, or scattergram and it can be defined as a type of graph which is used for the graphical representation of the values of two (2) variables, with the resulting data points showing any association or correlation between the data set.
What is an explanatory variable?In Mathematics, an explanatory variable is a type of variable that is typically plotted on the horizontal axis (y-coordinate or y-axis) of a scatter plot such as voltage.
On the other hand (conversely), a response variable is a type of variable that is typically plotted on the vertical axis (x-coordinate or x-axis) of a scatter plot such as rotation.
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Related Questions
Which is a simplified form of the expression -3b + 4 – 7b – 8?
A. -10b - 4
B. b - 15
C. -11b - 3
D. 10b + 4
Answers
Answer:
The correct answer is A. -10b - 4
Answer:
A. -10b-4
Step-by-step explanation:
-3b + 4 – 7b – 8 ->
-10b-4
All you have to do is add the terms that are alike :) hope this helps
Log x+y = logbx − logbyGiven log630 ≈ 1.898 and log62 ≈ 0.387, log615 =____.
Answers
Log x+y = logbx − logbyGiven log630 ≈ 1.898 and log62 ≈ 0.387, log615 ≈ 2.086.
Given log 630 ≈ 1.898 and log 62 ≈ 0.387,
We have log 630 = log (6 * 62 * 10) = log 6 + log 62 + log 10 = 1 + 0.387 + 1 = 2.387
And log 615 = log (6 * 62 * 5) = log 6 + log 62 + log 5 = 1 + 0.387 + 0.699 = 2.086
So, log 615 ≈ 2.086
In the example given, log 630 ≈ 1.898 and log 62 ≈ 0.387. These logarithmic values are used to simplify other logarithmic expressions and, the logarithm of 615 was found to be approximately 2.086.
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A construction company can remove 1/2 metric tons of dirt from a construction site in 1/4 hours. What is the unit rate in metric tons per hour?
Answers
Answer: 2 metric tons per hour
Step-by-step explanation:
We know that to get from 1/4 hour to 1 hour we have time 4
So we take 1/2 times 4 = 4/2 = 2 metric tons per hour!
Which number line and expression show how to find the distance from -4 to
1?
O A.
B.
C.
O D.
5
4
3
-2
|-4-1|
4
4-(-1)
4-1
-1 0
|-4-(-1)
1
2 3 4
23
Answers
The distance from -4 to 1 is 5 units.
The correct number line and expression to find the distance from -4 to 1 are:
Number line: -4 -3 -2 -1 0 1
Expression: |-4 - 1|
To find the distance, we subtract the smaller number (-4) from the larger number (1) and take the absolute value:
|-4 - 1| = |-5| = 5
Therefore, the distance from -4 to 1 is 5 units.
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Alyssa is drafting an email to Stuart, a financial advisor. He said he could help her create a personalized budget. What information will Stuart need to use to set up a personal budget for Alyssa? Select all that apply.
Answers
The information needed through Email from Alyssa to Stuart to create a personalized budget is:
The amount of mortgage paymentThe annual salarySupermarket expenses/ GroceriesWhat is Personalized Budget?
A personal budget, or household budget, simply tracks a household’s money in versus money out. Though a budget can be used to help an individual or family spend less and save more, it is, at its most basic, a planning and tracking tool.
Hello! It was so great catching up with you at the supermarket! You
mentioned that you might be able to help me create a personalized budget.
I am currently employed as a director at a day care center on the corner of 1st and Main Street. My birthday is on June 3. My largest expense is my mortgage payment of $1,200 per month. I picked a house in this neighborhood because it is close to work. Last year, my annual salary was $40 030. Please let me know if you can help!
Thank you,
Alyssa Palmer
Thus, from the above letter, Stuart will need the following;
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Lily is in charge of bringing bottled water to a party that has 37 guests.
Bottled water is sold in packs of 36 and each pack costs $42.12.
Part A: enter the total number of packs of water Lily will need to bring to the party if each guest is to have 3 bottles of
water.
Part B: enter the total cost, in dollars, Lily will spend on bottled water for the party.
Answers
Answer:
A) 4 packs
B) $168.48
Step-by-step explanation:
A) Lily will need to bring 4 packs of bottled water because 3 bottles per guest is 37 times 3, which gives us 111 water bottles. If each pack has 36, divide 111 water bottles by 36 giving us 3.08333333333 packs. Since you cannot buy 3.08333333333 packs of bottled water, Lily will need to round up to the nearest whole number to insure that each guest has exactly 3 water bottles. When you round up it will be 4 packs of bottled water.
B) Because Lily is bringing 4 packs of bottled water to the party and each pack costs $42.12, multiply 42.12 by 4 to get $168.48 as the total cost of her purchase.
helppppp plss :c!!!!!!!!!!!
Answers
solve for x please help asap! will give brainlest
Answers
Answer:
80+60+3x+4=180
140+3x+4=180
144+3x=180
3x=180-144
3x=36
x=12
Answer:
x = 12
Step-by-step explanation:
All triangles equal to 180 degrees so, we can set up this expression:
180 = (3x + 4) + 80 + 60
All we have to do is solve:
180 = (3x + 4) + 80 + 60
180 = 3x + 4 + 140
180 = 3x + 144
-144 -144
36 = 3x
/3 /3
12 = x
Given the function g(x) = x^2 - 5x which statement is not correct ?
Answers
Hello,
g(x) = x² - 5x
g(-3) = (-3)² - 5 × 3 = 9 - 15 = - 6 ≠ 24 ⇒ not correct
g(-1) = (-1)² - 5 × (-1) = 1 - 5 = -4 ⇒ correct
g(5) = 5² - 5× 5 = 25 - 25 = 0 ⇒ correct
g(7) = 7² - 5 × 7 = 49 - 35 = 14 ⇒ correct
Please Help ASAP
The table gives the value of Bianca's saving account at the end of each of the first four years. Which best describes the terms of this investment?
Answers
The term that best describes the investment is $1,250 invested at 4% compounded interest. The Option A is correct.
What is $1,250 invested at 4% compounded interest?We will use compound interest: A = P(1 + r/n)^(nt) formula to get the annual total investment. In this case, P = $1,250, r = 0.04, n = 1 and t = 1.
Plugging the values, we get:
A = 1250(1 + 0.04/1)^(1*1)
A = 1250(1.04)
A = $1,300
Therefore, term that best describes the investment is $1,250 invested at 4% compounded interest.
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Help me please, find area these shapes, easy, I will give brainliest and points
Answers
Answer:
red - 1/2 × b × h
=1/2 × 3 × 4
= 6
green - 1/2 × b × h
= 1/2 × 4 × 4
= 8
Joe went to the store and bought 4 cans of peanuts for $7.80 .What is the constant of proportionality? (explain what you do to solve and actually solve)
Answers
Answer:
84
Step-by-step explanation:
Two numbers have a sum of 23 and a difference of 9 what are the two numbers ?
Answers
Let x and y the numbers we are looking for, since they have a sum of 23, we can set the following equation:
\(x+y=23.\)Also, since its difference is 9, we can set the following equation:
\(x-y=9.\)Adding the first equation to the second one we get:
\(x-y+x+y=9+23.\)Simplifying the above equation we get:
\(2x=32.\)Dividing the above equation by 2 we get:
\(\begin{gathered} \frac{2x}{2}=\frac{32}{2}, \\ x=16. \end{gathered}\)Substituting x=16 in the first equation we get:
\(16+y=23.\)Subtracting 16 from the above equation we get:
\(\begin{gathered} 16+y-16=23-16, \\ y=7. \end{gathered}\)Answer: The numbers we are looking for are 16 and 7.
Answer:
The two numbers are 7 and 16.
Step-by-step explanation:
4z+7 what is the value of z
Answers
Answer: it could literally be anything
Step-by-step explanation: if 4*z+7=15 then z=2
On a coordinate plane, a line is drawn from point J to point K. Point J is at (negative 15, negative 5) and point K is at (25, 15). What are the x- and y- coordinates of point E, which partitions the directed line segment from J to K into a ratio of 1:4? x = (StartFraction m Over m + n EndFraction) (x 2 minus x 1) + x 1 y = (StartFraction m Over m + n EndFraction) (y 2 minus y 1) + y 1 (–13, –3) (–7, –1) (–5, 0) (17, 11)
Answers
Answer:
\((x,y) = (-7,-1)\)
Step-by-step explanation:
Given
\((x_1,y_1) = (-15,-5)\)
\((x_2,y_2) = (25,15)\)
\(m:n = 1:4\)
Required
Determine the coordinate of the partition
This is calculated as:
\((x,y) = (\frac{nx_1+ mx_2}{m+n},\frac{ny_1+ my_2}{m+n})\)
Substitute values for x's and y's
\((x,y) = (\frac{4*-15+ 1*25}{1+4},\frac{4*-5+ 1*15}{1+4})\)
\((x,y) = (\frac{-60+ 25}{5},\frac{-20+ 15}{5})\)
\((x,y) = (\frac{-35}{5},\frac{-5}{5})\)
\((x,y) = (-7,-1)\)
Answer:
b
Step-by-step explanation:
i think that's right
Help me with this Question Please.
Answers
Answer:
\(3 \times \frac{1}{3 } + \frac{1}{2} \times - 12( \frac{1}{3} ) = \frac{1}{3} \)
The scatter plot below suggests which of the following types of data relationship?
A. Weak positive correlation
B. Weak negative correlation
C. Strong negative correlation
D. Strong positive correlation
Answers
Answer:
Strong negative maybe
Step-by-step explanation:
They dots are mostly all together and the dots are going down from left to right indicating it’s negative
PLEASE PLEASE HELP ME TODAY OR ELSE IM GONNA DIE PLEASEEEE
Answers
Answer:
please do not wanna to die
Answer:
what is your quistion
Step-by-step explanation:
and then used the predict() function to make a prediction for each student's number of hours exercised per week, what value would it predict for each student?
Answers
the predict() function takes as input a linear regression model and a set of predictor variables (in this case, the students' GPA) and returns a set of predicted response values (in this case, the number of hours exercised per week) based on the fitted model.
The specific value that the predict() function would predict for each student's number of hours exercised per week would depend on the coefficients and intercept of the linear regression model that was fitted to the data. These coefficients reflect the relationship between the predictor variable (GPA) and the response variable (number of hours exercised per week) and determine how changes in the predictor variable are associated with changes in the response variable.
The intercept represents the predicted value of the response variable when the predictor variable is zero. Therefore, the predict() function would use these coefficients and intercept to predict the number of hours exercised per week for each student based on their GPA.
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a report from a poultry industry news web site stated that the weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1459 grams and standard deviation 190 grams. use the ti-84 plus calculator and round your answers to at least two decimal places. (a) find the 20th percentile of the weights. (b) find the 93rd percentile of the weights. (c) find the third quartile of the weights. (d) a chicken farmer wants to provide a money-back guarantee that his broilers will weigh at least a certain amount. what weight should he guarantee so that he will have to give his customers' money back only 2% of the time?
Answers
(a) The 20th percentile of the weights is 1619.36 grams.
(b) The 93rd percentile of the weights 1558.28 grams.
(c) The third quartile of the weights is 1586.3 grams.
(d) The weight that the chicken farmer should guarantee, so that he will have to give his customers' money back only 2% of the time is 1224.87 grams.
To find the 20th percentile, we need to find the value of the weight such that 20% of the weights are less than or equal to that value. To find the 93rd percentile, we need to find the value of the weight such that 93% of the weights are less than or equal to that value. To find the third quartile, we need to find the value of the weight such that 75% of the weights are less than or equal to that value.
To find these values using a TI-84 Plus calculator, we can use the normal cdf function. This function calculates the area under the standard normal curve between two given values.
For example, to find the 20th percentile, we can use the normal cdf function as follows:
normal cdf (-3.09, 0, 1)
This will give us the area under the standard normal curve between -3.09 and 0. Since the mean of the weights is 1459 grams and the standard deviation is 190 grams, and we are looking for the 20th percentile, we need to find the value of x such that the area under the standard normal curve between -x and 0 is equal to 0.20. Therefore, we can set up the following equation:
normal cdf(-x, 0, 1) = 0.20
Solving for x, we get x = -0.84. Since the mean of the weights is 1459 grams and the standard deviation is 190 grams, the 20th percentile of the weights is equal to 1459 - (190 * -0.84) = 1459 + 160.36 = 1619.36 grams.
To find the 93rd percentile, we can use the normalcdf function as follows:
normalcdf(-0.52, 0, 1)
This will give us the area under the standard normal curve between -0.52 and 0. Since the mean of the weights is 1459 grams and the standard deviation is 190 grams, and we are looking for the 93rd percentile, we need to find the value of x such that the area under the standard normal curve between -x and 0 is equal to 0.93. Therefore, we can set up the following equation:
normalcdf(-x, 0, 1) = 0.93
Solving for x, we get x = -0.52. Since the mean of the weights is 1459 grams and the standard deviation is 190 grams, the 93rd percentile of the weights is equal to 1459 - (190 * -0.52) = 1459 + 99.28 = 1558.28 grams.
To find the third quartile, we can use the normalcdf function as follows:
normalcdf(-0.67, 0, 1)
This will give us the area under the standard normal curve between -0.67 and 0. Since the mean of the weights is 1459 grams and the standard deviation is 190 grams, and we are looking for the third quartile, we need to find the value of x such that the area under the standard normal curve between -x and 0 is equal to 0.75. Therefore, we can set up the following equation:
normalcdf(-x, 0, 1) = 0.75
Solving for x, we get x = -0.67. Since the mean of the weights is 1459 grams and the standard deviation is 190 grams, the third quartile of the weights is equal to 1459 - (190 * -0.67) = 1459 + 127.3 = 1586.3 grams.
To find the weight that the chicken farmer should guarantee, we need to use the normal distribution. On the TI-84 Plus calculator, you can use the invNorm( function to find the inverse of the normal cumulative distribution function.
To use this function, we need to know the mean and standard deviation of the weights of the broilers, as well as the percentile that corresponds to the weight we want to find. In this case, we want to find the weight that corresponds to the 2nd percentile, since we want to give money back only 2% of the time.
To find the weight that corresponds to the 2nd percentile, we can use the following formula:
invNorm(2, 1459, 190)
This will give us the weight that corresponds to the 2nd percentile of the normal distribution with mean 1459 grams and standard deviation 190 grams. Rounding to two decimal places, the weight that the chicken farmer should guarantee is 1224.87 grams.
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HELP ME PLEASE.
find the perimeter, area , and T.S.A of the following solids
Answers
Answer:
area =l×b
perimeter=add all the sides
3 solids
what is n? solve for n+5=2n-6
Answers
Answer:
n = 11
Step-by-step explanation:
n+5=2n-6
you add 6 on both sides and you get
n+11=2n
you then subtract n on both sides and get
11=n
Step-by-step explanation:
n+5 = 2n - 6 -> Original equation
5 = n - 6 -> Take n away from both sides
11 = n -> Add 6 to both sides
n = 11 -> Final answer
*Remember, we are trying to get n by using inverse operations.
ya+yv=t What is the solution for y
Answers
Answer:
y = \(\frac{t}{a+v}\)
Step-by-step explanation:
Given
ya + yv = t ← factor out y from each term on the left side
y(a + v) = t ( divide both sides by a + v )
y = \(\frac{t}{a+v}\)
Answer: y = yah
Step-by-step explanation:
A florist charges $2 for each carnation in a bouquet and a $5 delivery fee. You have $25 to spend. Which of the following equations represents the number of carnations, c, that you can purchase?
A.2c+5=25
B.2c−5=25
C.5c+2=25
D.5c−2=25
Answers
Answer:
A. 2c + 5 = 25
Step-by-step explanation:
You have 25 dollars to spend so that's your end amount.
It costs 2 dollars for ever carnation, so it's 2 times the amount of carnations you get, hence 2c.
And it's 5 dollars for the delivery fee which you just add to 2c.
I hope this makes sense :)
How do you solve inequality questions?
Answers
An inequality like the statement, x + 3 > 5, can be solved by finding the value of the variable, "x", which is x > 2.
How to Solve an Inequality Question?Inequalities are used to express relationships between quantities or values that are not equal. They can be used to describe constraints or limitations on a solution to a problem, or to represent a range of possible values.
Inequality can also be used to describe relationships between variables in algebraic expressions or equations.
To solve an inequality, we need to isolate the variable in the given statement to determine the value of the variable.
For example, given the inequality, x + 3 > 5, in order to solve this inequality, we need to find the value of x by subtracting 3 from both sides:
x + 3 - 3 > 5 - 3
x > 2.
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What is 6.16 rounded to the nearest tenth?
Answers
Answer:
6.2
Step-by-step explanation:
Okay so in order to solve this equation you are going to have to round up the tenths place which is the space after the decimal point.
6.16 = 6.2
because 6 is above 5 you are able to round up to ten turning 6.16 to 6.2
Hope this helps you!!!
For the following set of data, find the percentage of data within 2 population standard deviations of the mean, to the nearest percent
chart is in the photo
Answers
Percentage of data within 2 population standard deviations of the mean is 68%.
To calculate the percentage of data within two population standard deviations of the mean, we need to first find the mean and standard deviation of the data set.
The mean can be found by summing all the values and dividing by the total number of values:
Mean = (20*2 + 22*8 + 28*9 + 34*13 + 38*16 + 39*11 + 41*7 + 48*0)/(2+8+9+13+16+11+7) = 32.68
To calculate standard deviation, we need to calculate the variance first. Variance is the average of the squared differences from the mean.
Variance = [(20-32.68)^2*2 + (22-32.68)^2*8 + (28-32.68)^2*9 + (34-32.68)^2*13 + (38-32.68)^2*16 + (39-32.68)^2*11 + (41-32.68)^2*7]/(2+8+9+13+16+11+7-1) = 139.98
Standard Deviation = sqrt(139.98) = 11.83
Now we can calculate the range within two population standard deviations of the mean. Two population standard deviations of the mean can be found by multiplying the standard deviation by 2.
Range = 2*11.83 = 23.66
The minimum value within two population standard deviations of the mean can be found by subtracting the range from the mean and the maximum value can be found by adding the range to the mean:
Minimum Value = 32.68 - 23.66 = 9.02 Maximum Value = 32.68 + 23.66 = 56.34
Now we can count the number of data points within this range, which are 45 out of 66 data points. To find the percentage, we divide 45 by 66 and multiply by 100:
Percentage of data within 2 population standard deviations of the mean = (45/66)*100 = 68% (rounded to the nearest percent).
Therefore, approximately 68% of the data falls within two population standard deviations of the mean.
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what is value of 3(√3(80-x)
Answers
Answer:
= 240√3-3√3x
Step-by-step explanation:
parentheses:
=3√3 (80 – x)
Apply the distributive law:
a=3√3, b= 80, c =X
=3√3×80-3√3x
=3× 80√3 -3√3x
Multiply the numbers: 3×80 = 240
= 240√3-3√3x
Could anyone help? Will mark brainliest if you provide workout!
Answers
with which measurement procedure is the target behavior recorded if it occurs at any point within the scoring interval?
Answers
If the target behavior is recorded whenever it occurs at any point within the scoring interval, the measurement procedure used is called continuous recording or event recording. This method involves observing and recording each instance of the behavior without considering its duration or intensity.
Continuous recording is typically used when the target behavior is discrete and occurs relatively infrequently or has a short duration. With this measurement procedure, each occurrence of the behavior is recorded as a separate event, regardless of when it starts or ends within the scoring interval. Examples of behaviors that can be measured using continuous recording include vocalizations, hand clapping, or instances of aggression.
Continuous recording provides a comprehensive account of the frequency or rate at which the behavior occurs, allowing for a detailed analysis of its occurrence patterns. This method is particularly useful when a precise count of behavior instances is needed and when the duration or intensity of the behavior is not a focus of measurement.
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