Answers
Answer:
Given: P.E=6.0J Height (h)= 3m g=9.8m/s^2
mass=?
Formula: P.E=mgh
m=P.E/gh
Application: To find mass of an apple
Answer+unit= 0.2 kg
Step-by-step explanation:
m=P.E/gh
= 6kgm^2/s^2 ÷ 9.8m/s^2*3m
=0.2kg
Related Questions
An academic advisor calculated the mean GPA for college freshmen to be 2.33, with a standard deviation of 1.06. The advisor knows that there is a relationship between high school GPA and freshman-year GPA. If the advisor uses each student's high school GPA to predict his/her freshman-year GPA, what happens to the average error in prediction (relative to not using high school GPA to predict freshman-year GPa.
Answers
Answer:Average error will be less
Step-by-step explanation: Prediction error refers to the difference between the the actual and predicted value of an observation. Using correlation analysis or study, The level or degree of correlation or relationship between two measured variables usually determines the variation or measure of the prediction error. If there is no relationship or correlation between two measured variables, if such model is used to make prediction, the average prediction error will be very high. However, since it is stated that there exist a relationship between high school GPA and Freshman-year GPA, then making prediction based on this assertion will lessen the average prediction error.
what would x equal if 1/2x-2=8
Answers
Answer:
hope this helped you
please mark as the brainliest (ㆁωㆁ)
3. 28/ч - 2x3 =
Answer
Answers
Answer:
28/4 - 2x^3 = 7- 2x^3
Hope this helps!
Answer:
1
Step-by-step explanation:
This is the answer because:
You can use PEMDAS or GEMS to help you remember the order of operations.
PEMDAS: Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction
GEMS: Grouping (Parenthesis), Exponents, Multiplication and Division (whichever comes first from left to right), Addition and Subtraction (whichever comes first from left to right).
1) We have to use the order of operations in order to solve this.
2) First, we have to divide because it's the first thing there is, 28/4 = 7
3) Next, we have to multiply since we cannot subtract before multiplying because you have to follow the rules of Order of Operations. 2 x 3 = 6
4) Finally, 7 - 6 = 1
Hope this helps!
1. Explain in words how you would solve the following equation: 4x + 1 = 6x - 11
Answers
Answer:
your is x=6
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Rocko paid 12.50 for 25 game tickets
Answers
He paid each game ticket for 0.5$
EXPLANATION
12.5/25
Draw a discrete graph that has a domain of 0<=x<=8 and a range of (2,4,6,8,10).Write a situation for the graph.(You don't have to draw the graph,I just want the situation)
Answers
Answer:
X² - Y² = 1
X² = (X - 0)²
Y² = (Y - 0)²
[(X - 0)²/1] - [(Y - 0)²/1] = 1
Centro (0 , 0)
a² = 1 : b² = 1
c² = 1 + 1 = 2
c =
Focos :(0 +/- 1.414213562 , 0)
F1 : ( -1.414213562 , 0)
F2 : (1.414213562 , 0)
Vertices: (+/- 1 , 0)
V1: (1 , 0)
V2: (-1, 0)
Te anexo la grafica
Step-by-step explanation:
What is the value of x in the proportion below? 180 km/ 3 hours = 540 km/ x A. 6 B. 9 C. 12 D. 60
Answers
Answer: its 9
Step-by-step explanation: I took the test :)
What is the variable used to predict another variable called________.A. Independent variableB. Dependent variableC. Moderating variableD. Intervening variable
Answers
Answer:
A. Independent variable
Step-by-step explanation:
The prediction of a variable can be done if we have the independent variable. Which is the required variable that is used to determine the value of the other variable. The variable to be predicted is dependent on the required variable.
An independent variable can also be referred to as a predictor variable. When its value is known, it can be used to obtain the dependent variable.
Your phone plan charges you an initial fee, and then a certain amount depending on the amount of data you use. They send you periodic updates of your usage and your current bill cost. After using 3 GB of data, you owe $30. After 5 GB of data, you owe $40. What is the initial fee prior to the data usage charge?
Answers
Answer:
Hi there!
Your answer is: 5$ flat rate!
Step-by-step explanation:
3x + 5 = 30
5x +5 = 40
BRAINLIEST TO THE FIRST CORRECT ANSWER!!The expression on the left side of an equation is shown below.
Negative 4 (x minus 2) + 5 x = box
If the equation has no solution, which expression can be written in the box on the other side of the equation?
2(x + 4) – x
x + 8
4(x + 2) – 5x
x
Answers
you just have to simplify -4(x-2)+5 which gives you x+8
Answer:
The correct answer is B. x + 8
Simplify the expression: 2(2 + 6g)
Answers
Answer:
[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{4 + 12g}}}}}[/tex]
Step-by-step explanation:
[tex] \sf{2(2 + 6g)}[/tex]
Distribute 2 through the parentheses
[tex] \longrightarrow{ \sf{2 \times 2 + 2 \times 6g}}[/tex]
[tex] \longrightarrow{ \sf{4 + 12g}}[/tex]
Hope I helped!
Best regards! :D
Archie is stranded in a war zone in the land of the Xhosas. His only chance of survival is to reach Sudland, which lies 100 miles away. There are just two routes to Sudland; one is through a desert, and the other is a long and perilous trek through the mountains. Both routes are terribly dangerous. In the past, 26% of all who tried to reach Sudland failed. Of all attempts to reach Sudland, 1 out of every 40 were by the desert route. Although it is the longer route, the mountains seem to provide more success: 75% of those who attempted to reach Sudland through the mountains were successful. To save time, Archie intends to go via the desert. What are his chances of making it through to Sudland
Answers
Answer:
The chances of success for Archie is [tex]P(S|D) = 35\%[/tex]
Step-by-step explanation:
From the question we are told that
The distance of Sudland from Xhosas is d = 100 miles
The probability of failure is [tex]P(F) = 0.26[/tex]
The probability of choosing the desert route is [tex]P(D) = \frac{1}{40} = 0.025[/tex]
The probability of reaching Sudland through the mountain is [tex]P(S|M) =0.75[/tex]
Generally the probability of choosing the mountains route is
[tex]P(M) = 1 - P(D)[/tex]
[tex]P(M) = 1 - 0.025[/tex]
[tex]P(M) = 0.975[/tex]
Generally the probability of success is mathematically represented as
[tex]P(S) = 1- P(F)[/tex]
[tex]P(S) = 1- 0.26[/tex]
[tex]P(S) = 0.74[/tex]
Generally the probability of success in reaching Sudland is also mathematically represented as
[tex]P(S) = P(S|M) * P(M) + P(S|D) * P(D)[/tex]
=> [tex]P(S|D) = \frac{P(S) - P(S|M) * P(M)}{P(D)}[/tex]
substituting values
=> [tex]P(S|D) = \frac{0.74 - 0.75 * 0.975}{0.025}[/tex]
=> [tex]P(S|D) = 0.35 [/tex]
=> [tex]P(S|D) = 35\%[/tex]
Problem:
Jett had a coupon to buy a computer for 40% off. He paid $210 for the computer. What was the original price?
Answers
Answer:
290
Step-by-step explanation:
Step-by-step explanation:
290 because of the percentages
When is there no solution to a compound inequality is it AND or OR
Answers
Answer:
The solution could begin at a point on the number line and extend in one direction. 3. In cases where there is no overlap between the two inequalities, there is no solution to the compound inequality.
Step-by-step explanation:
Suppose 24% of students chose to study French their sophomore year, and that meant that there were 54 such students. How many students chose not to take French their sophomore year?
Answers
171
24 % = 54
1 % = 2.25
100 % = 171
(01.01 MC)
The mean number of hours spent per day on the computer, according to a national
survey, is six hours, with a standard deviation of 2.5 hours. If each time was increased
by 1.5 hours, what would be the new mean and standard deviation? (2 points)
O 6,2.5
0 7.5,4
O 6,4
0 7.5, 2.5
Answers
Answer:
(7.5, 2.5)
Step-by-step explanation:
Given the following information ;
Mean hours (x) = 6
Standard deviation = 2.5 hours
If each time is increased by 1.5 hours, then the newly calculated mean will also increase by the same amount of time, that is 1.5 hours. This is because, since each individual item used in calculating the initial mean increased by the same amount, the average increase will be that same value (1.5 hours). Hence, the mean will increase by the same amount.
New mean = 6 hours + 1.5 hours = 7.5 hours
For the standard deviation ; which measures the variation of values from the mean, in this scenario, the standard deviation remains the same because the each value and the mean changed by equal amount, hence the bet change remains the same and so does the standard deviation.
Add like terms 5x + 2y + 2x - 4y - 3x
Answers
Answer:
4x-2y
Step-by-step explanation:
Answer:
[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{4x - 2y}}}}}[/tex]
Step-by-step explanation:
[tex] \sf{5x + 2y + 2x - 4y - 3x}[/tex]
Like terms are those which have the same base.
Combine the like terms and simplify
[tex] \dashrightarrow{ \sf{5x + 2x - 3x + 2y - 4y}}[/tex]
[tex] \dashrightarrow{ \sf{4x - 2y}}[/tex]
Hope I helped!
Best regards! :D
Evaluate the problem -3-(+4)
Answers
Answer:
-7
Step-by-step explanation:
-3 - (4) = ?
Remove parentheses:
= -3 - 4
Subtract the numbers:
= -7
Solve for b b+4.22=7.08
Answers
Steps to solve:
b + 4.22 = 7.08
~Subtract 4.22 to both sides
b = 2.86
Best of Luck!
Solve for x. Round to the nearest tenth.
Answers
Answer:
32
Step-by-step explanation:
just took it
What is 14 2/3 as an improper fraction?
Answers
Answer:
44
__
3
(another way to put it)
44/3
Answer:
44 / 3
Step-by-step explanation:
Pretty easy actually.
1-6(-X + 8) = -6x + 12
How many solutions are their
Answers
Answer:
no solution
Step-by-step explanation:
distribute -6 to get:
1-6x-48=-6x+12
the -6x on both sides cancels out giving you:
1-48=12
-47=12
since this isn't true there's no solution
tell me if you need more help
Answer:
There is one solution [tex]x = 4\frac{11}{12}[/tex]Step-by-step explanation:
[tex]1-6\left(-x+8\right)=-6x+12\\\\\mathrm{Expand\:}1-6\left(-x+8\right):\quad 6x-47\\\\6x-47=-6x+12\\\\Collect\:like\:terms\:and\:simplify\\\\6x +6x =12+47\\\\12x=59\\\\\mathrm{Divide\:both\:sides\:by\:}12\\\\\frac{12x}{12}=\frac{59}{12}\\\\Simplify\\\\x =\frac{59}{12}\\\\59\div 12 = 4\:reemainder\: 12\\\\= 4\frac{11}{12}[/tex]
In a class of 25 students, 24 of them took an exam in class and 1 student took a make-up exam the following day. The professor graded the first batch of 24 exams and found an average score of 74 points with a standard deviation of 8.9 points. The student who took the make-up the following day scored 64 points on the exam. what is the new average
Answers
Answer:
The value is [tex]\mu_n = 73.6[/tex]
Step-by-step explanation:
From the question we are told that
The total number of students is [tex]N = 25[/tex]
The number of student that took exam in class is n = 24
The number that took make up exam is k = 1
The average score of the first 24 students is [tex]\mu = 74[/tex]
The standard deviation is [tex]\sigma = 8.9[/tex]
The average score of the student who took make up test is [tex]\= x = 64[/tex]
Generally the new average is mathematically represented as
[tex]\mu_n = \frac{( n * \mu ) + \= x }{N}[/tex]
[tex]\mu_n = \frac{( 24 * 74 ) + 64 }{25}[/tex]
[tex]\mu_n = 73.6[/tex]
Plz help!! Quesion above
Answers
(3 1/3 −1 5/6 ) ÷ 2 1/7 −1 1/3 · 2.4
Answers
Answer:
Exact form -5/2 Decimal form -2.5 Mixed number -2 1/2
Step-by-step explanation:
Solve the equation for x.
2
3
x −1
9
x + 5 = 20
Answers
AnsweSolve the equation for x. 2 3 x −1 9 x + 5 = 20
Step-by-step explanation:
Answer:
X=27
Step-by-step explanation:
f(x) = (x - 3)² +5 transformations?
Answers
Step-by-step explanation:
Since (a - b)² = a² - 2ab + b²
f(x) = (x² - 6x + 9) + 5
= x² - 6x + 14
PLEASE HELP U GET BRINLIEST IF ANDMSWERED
Answers
Answer:
b=10
Step-by-step explanation:
I think the other part would be √-300 √3 but that's the best i could do
Martha earns $16.50 an hour for a regular 40 hour week. He overtime payo is 1.5 times her regular hourly rate. This past week Martha earned $948.75 in total pay. Approximately, how many hours of overtime did she work this past week? (Round you answer to the nearest hour. Just put the number, do not include the word hour) *
Answers
Answer:
12
Step-by-step explanation:
Regular work week is 40 hours; at $16.50 per hour, that comes to $660.
Subtracting $660 from the toal $948.75 yields $288.75, which represents her pay at the overtime rate of (1.5)($16.50/hr), or $24.75/hour
Dividing $288.75 by this overtime rate of $24.75/hr yields 11.666 ...
We conclude that she worked approximately 12 hours overtime to end up
with $948.75 total pay.
can someone help me with this question
Answers
Answer:
Very Simple!
Step-by-step explanation:
Just use the distance formula!
(I'm in a math class right now, so I have to keep it brief)
Distance Formula, example:
[tex]AB=\sqrt{(x_{1}-x_{2})^{2}+(y_{1}-y_{2})^{2} }[/tex]
Just input the x and y values from A and B into here, and then that's it!
Hope this helps!
Happy Geometry!
