Answer:
y=-2
Step-by-step explanation:
3(y-2)=2y-8
3y-6=2y-8
3y-2y=-8+6
y=-2
Find the axis of symmetry for the function below.
2x^2 – 8x + 5 = 0
A study revealed a strong, linear, positive association between the amount of shampoo used and the length of hair. Another study revealed a strong, linear, positive association between amount of conditioner used and the length of hair. When the data were combined, the association became negative. What is this an example of?
Answer:
Step-by-step explanation:
B
Answer:
Simpson's Paradox
Step-by-step explanation:
The "cold start ignition time" of an automobile engine is being investigated by a gasoline manufacturer. The following times (in seconds) were obtained for a test vehicle: 1.75, 1.92, 2.62, 2.35, 3.09, 3.15, 2.53, and 1.91. (a) Calculate the sample mean and sample standard deviation. (b) Construct a box plot of the data.
Answer:
(a) The sample mean and sample standard deviation are 2.415 and 0.5342 respectively.
(b) Shown below.
Step-by-step explanation:
The data set provided is:
S = {1.75, 1.92, 2.62, 2.35, 3.09, 3.15, 2.53, and 1.91}
(a)
Compute the sample mean and sample standard deviation as follows:
[tex]\bar x=\frac{1}{n}\sum\limits_{i}{x_{i}} =\frac{1}{8}\times 19.32=2.415\\\\\\s=\sqrt{\frac{1}{n-1}\sum\limits_{i}{(x_{i}-\bar x^{2})^{2}}}=\sqrt{\frac{1}{8-1}\times 1.9976}=0.5342[/tex]
Thus, the sample mean and sample standard deviation are 2.415 and 0.5342 respectively.
(b)
Use SPSS to form a Box plot.
Go to Graphs → Legacy Dialogs → Boxplot
A dialog box will open.
Select "Simple".
Select "Summaries for Separate Variable"
Press "Define"
Another dialog box will open.
Select the variable.
Press OK.
The box plot is attached below.
80 plus what equals 44??
Answer:
-36
Step-by-step explanation:
80 + (-36) = 44
The negative in the 36 allows it to be subtracted from 80
Answer:
80 + -36
Step-by-step explanation:
80 - 44 = 36
80 + -36 = 44
Convert 1_1/2 to a percent
Answer:
150%
Step-by-step explanation:
You have 1 hole 100% and half 50%
Answer:the fraction 48 can be converted to decimal by dividing 4 by 8 . It can be converted to percent by multiplying by 100
Step-by-step explanation:
all the manz in my block have a glock ahhhhhh
Suppose John has 6.93 pounds of seed. If it takes 6.3 pounds of seed to plant one acre
can be planted?
Answer:
he can onle plant one.
Step-by-step explanation:
what exactly is the question.
Which equation is true when the value of x is -6
Answer:
x(4 + 4) + 16 = -32
Step-by-step explanation:
-6 times 4 is -24 so then you add -24 + -24 and get -48. Then if you add a positive 16 to the -48 you get -32.
Why is "3 meals a day" a unit rate?
O It compares 1 meal to 1 day.
O It compares 1 meal to 3 days.
O It compares 3 meals to 1 day.
Olt compares 3 meals to 3 days.
Answer:
it compares 3 meals to 1 day
A square has a side length of 19 in. What is the area?
Answer:
A=a2=192=361in²
Step-by-step explanation:
Combine Like Terms: x^2 + y^2 + 3y^2 + 4x + 2x + 2 + 2
Answer:
x^2 + 4y^2 + 6x + 4
Step-by-step explanation:
Arranging the terms;
x ^ 2 + y^2 + 3y^2 + 4x + 2x + 2 + 2
x^2 + 4y^2 + 4x + 2x + 2 + 2
x^2 + 4y^2 + 6x + 2 + 2
x^2 + 4y^2 + 6x + 4
Complete the following truth table. Use T for true and F for false.
what is the answer
Manatees are an endangered species of herbivorous, aquatic mammals found primarily in the rivers and estuaries of Florida. As part of its conservation efforts, the Florida Fish and Wildlife Commission records the cause of death for every recovered manatee carcass in its waters. Of the 392392 recorded manatee deaths in 2012, 6868 were perinatal and 8181 were caused by collision with a watercraft. (a) What is the probability that the death of a randomly selected manatee was due to collision with a watercraft? (Enter your answer rounded to four decimal places.)
Answer:
Other question are " (b) What is the probability that the death was not due to collision with a watercraft? (Enter your answer rounded to four decimal places.) P(not collision) - (c) What is the probability that the cause of death was due to perinatal problems or collision with a watercraft? What is the
(c) What is the probability that the cause of death was due to perinatal problems or collision with a watercraft? What is the probability that it was due to some other cause? (Enter your answers rounded to four decimal places.) P(perinatal or collision) P(other cause) -"
a) P(collision) = Number of deaths caused by collision / Total number of deaths
P(collision) = 81/392
P(collision) = 0.2066
b) P(not collision) = 1 - P(collision)
P(not collision) = 1 - 0.2066
P(not collision) = 0.7934
c) P(perinatal or collision) = (68+81)/392
P(perinatal or collision) = 0.3801
P(other cause) = 1 - 0.3801
P(other cause) = 0.6199.
Help please.... I have got this wrong 2xs only once chance left
Answer:
a: 5x-1 = -6
b: 5x-1 = -6
+1 +1
5x = -5
divide
x = -1
Write an addition problem that has a sum of -4 3/5
Answer:
-4+(-4.6)
Step-by-step explanation:
What is the equation of the line that passes through the point (5,-7) and has a slope of negative 1
Answer:
y = -x - 2
Step-by-step explanation:
Use equation: y = mx + b, where "m" is the slope and "b" is the y intercept. You are given a slope of -1 for the m. This is usually expressed as just a "-", as the 1 is inferred.
Since you are given a point, plug the x and y values in to the equation.
-7 = -(5) + b
Solve for b:
-7 = -5 + b
-2 = b
Knowing "m" and "b", plug these in to get your final equation
y = -x - 2
someone help please
Answer:
16. =
17. <
18. <
Step-by-step explanation:
Stella has 215 coins and 89 of them are nickels. Two-thirds of the remaining coins are pennies. How many pennies does Stella have?
A. 38
B. 42
C. 66
D. 84
Answer: 84
Step-by-step explanation:
215 - 89 = 126
126 divided by 3 = 42
42 x 2 = 84
( this was how my teacher taught me to do these kind of problems)
Hope this helps! <3
Answer:
The answer is 84
Step-by-step explanation:
got it right on edge :D
Solve the math problem. Make sure your answer has the correct number of significant figures.
10.9 - 8.264
Answer:
2.636
Step-by-step explanation:
10.900-08.264
The graph of a linear function is shown on the grid. What is the rate of change of y with respect to x for this function? Please hurry it’s urgent Thank you
Answer:
[tex] -0.2 [/tex]
Step-by-step explanation:
Given:
(-3, 3.6);
(5, 2)
Required:
Rate of change
SOLUTION:
Rate of change for the function is given as [tex] \frac{y_2 - y_1}{x_2 - x_1} [/tex].
Let,
[tex] (-3, 3.6) = (x_1, y_1) [/tex]
[tex] (5, 2) = (x_2, y_2) [/tex]
Rate of change = [tex] \frac{2 - 3.6}{5 - (-3)} [/tex]
[tex] = \frac{-1.6}{8} [/tex]
[tex] = -0.2 [/tex]
The rate of change of y with respect to x for this function is -0.2
Given :
The graph of a linear function is shown on the grid
To find the rate of change of y with respect to x , we need to pick two points from the graph
Two points are (-3,3.6) and (5,2)
Lets apply slope formula to find out rate of change
[tex]slope =\frac{y_2-y_1}{x_2-x_1}\\slope =\frac{2-3.6}{5+3} \\slope = -0.2[/tex]
The rate of change of y with respect to x for this function is -0.2
Learn more : brainly.com/question/24930128
Which graph shows the solution to this system of inequalities? 3x - y < 5 and x + y > 2( PLEASE HELP!! )
Answer:
D
Step-by-step explanation:
Just graph both inequalities and plug in 0 to see which way it goes.
If m 24 = 35º, find m_2 and m23.
А
00
2
4
.
m22 =
m23 =
Answer:
m22 answer will be in your book only
Train A is traveling at 70 mph to a destination 200 miles away. Train B will leave 20 minutes after train A. Train B will leave from Train A's destination and will head in Train A's direction. If Train B will be going at a speed 32 of Train A's, how long after Train A left will it take before Train B arrives at Train A's starting point? Round your answer to the nearest tenth of an hour
Answer:
The answer is "2.2 h"
Step-by-step explanation:
Speed of Train B:
[tex]= \frac{3}{2} \times 70 \ mph \\\\= 105 \ mph[/tex]
Train B is then moving on:
[tex]= \frac{200 \ miles}{ 105 \ mph} \\\\= 1.905 \ h\\[/tex]
Then it takes Train A to the left:
[tex]\to 1.905\ h + 20 \ min \\\\= 1.905 \ h +0.333 \ h \\\\= 2.238 \ h[/tex]
To get train B to the reference point of train A = 2.2 h
Jefferson Middle School needs to see a 300% gain in PTO fundraiser
sales from last year. If they sold a total of $2,420 last year, how much do
they need to sell this year to meet their goal? *
Given parameters:
Percentage gain = 300%
Selling cost last year = $2420
Unknown:
Selling cost this year = ?
Solution:
To solve this problem;
Profit percent = [tex]\frac{Selling cost this year - Selling cost last year}{Selling cost last year} x 100[/tex]
300 = [tex]\frac{S - 2420}{2420} x 100[/tex]
3 = [tex]\frac{S - 2420}{2420}[/tex]
S- 2420 = 7260
S = $9680
To make a 300% gain, Jefferson Middle school needs a $9680 from fundraiser sales this year.
2. During typhoon Ambo, PAGASA tracks the amount of accumulating rainfall. For the first three hours of typhoon, the rain fell at a constant rate of 25mm per hour The typhoon slows down for an hour and started again at a constant rate of 20 mm per hour for the next two hours. Write a piecewise function that models the amount of rainfall as function of time.
Answer:
Kindly check explanation
Step-by-step explanation:
Given the following information:
First three hours of typhoon: rate of Rainfall. = 25mm per hour
Typhoon slows down for an hour : then Rainfall began again at a constant rate of 20 mm per hour for the next 2 hours
Piecewise function which models Rainfall ad a function of time
Amount of Rainfall as a function of time = f(t)
f(t) = 25t ; if t≤ 3
When typhoon slowed down for an hour :
f(t) = 0;
f(t) = 25*3 ; for t ∈ (3, 4)
Then Rainfall at a constant rate of 20mm for another 2 hours
f(t) = (25 *3) + 20(t - 4) ; for t ∈ (5, 6)
Sophie went to the lake with her family. First, they spent 1 1/4
hours fishing. Then, they spent twice as much time swimming. How much time did they spend fishing and swimming in all?
Write your answer as a whole number, fraction, or mixed number.
Answer:
2
Step-by-step explanation:
Holiday Inn charges its cost one dollar plus $.80 per minute for long distance calls. Across the street, La Quinta charges its guests $2 plus $0.75 per minute for long distance calls. Which equation correctly models the length of a call for which the two hotels charge the same amount
1/2 (b + 2) + 3b = -1
Answer:
3 1/2b + 2 1/2=-1
Step-by-step explanation:
For every line there can exist a coplanar parallel line. true or false?
Answer:
T
Step-by-step explanation:
Plot the number 2.78 on a numberline between 2.7 and 2.8
Answer:
On the screenshot below, each little line represents 0.1. It's not labeled 2.7 and 2.8, but if you count the tick marks by 0.1, it shows that exact approximation.
I hope this helps!
Answer:
<│--------│----------│-----------│----------│----------│-----------│-----------│------------│------│>
2.7 2.71 2.72 2.73 2.74 2.75 2.76 2.77 2.78 2.8
Dilations always increase the length of line segments
True
False
Dilations increase the measure of angles.
Group of answer choices
True
False
Dilations of a triangle are similar to the original triangle.
Group of answer choices
True
False
