Questions Asked on
September 9, 2019

Maths
Functions f and g are defined by f(x)=4x2k g(x)=9/(2x) i.Find the values of k for which the equation fg(x)=x has two equal roots.
asked by Raj 
Science
Which items are TRUE about minerals? Select three correct answers. A. rocks are the components that make up minerals. B. minerals are made of one element or one compound of elements. C. observing one property is often the best way to identify minerals. D.
asked by Redacted. 
Health, Fitness, and Nutrition
Check my answers please 1. The terms "aerobic fitness" and "cardiorespiratory fitness" mean the same thing. True* False 2. Duration refers to the amount of time of your aerobic session. True* False 3. Frequency refers to how hard you exercise. True False*
asked by I'm right 
Chemistry
How much heat (energy) is required to convert 18.0 g (1.00 mole) of ice at 5.00oC to steam at a temperature 111oC? (6)
asked by X 
Math
You are baking chocolate chip cookies. One batch makes 4 dozen big cookies. The recipe calls for 3/4 cup brown sugar. How many cups of brown sugar would you need if you wanted to make 11 dozen cookies.
asked by Melinda 
math
For the substitution method, is there a right equation to pick from the set and rewrite it? My problem is 3x2y=1 2x+4y=1 I chose 2x+4y=2 and came up with x=12y which I will later plug into 3x2y=1. Or do I have to choose 3x2y=1? My tactic is picking the
asked by lijm 
Math
Scientific notation for .0026
asked by Anonymous 
Algebra 1
Victoria weighs 5/7 as much as Mario. Victoria weighs 125lb. How much does Mario weigh
asked by Anonymous 
math
A train traveling between two stations. The train starts from rest and accelerates uniformly for 150 seconds. It then travels at a constant speed for 300 seconds and finally decelerates uniformly for 200 seconds. Given that the distance between the two
asked by kd 
Math
What proportion of observations from the standard normal distribution are greater that 2.88?
asked by Anonymous 
Science
A truck hits a brick wall with force of 100000 kg•m/s2. The truck comes to a stop in 0.5 s. Calculate the impulse the truck experienced
asked by Vickie 
physics
A hollow metal sphere of mass 5kg is tied to the bottom of the seabed by a rope. The tension or force in the rope is 60 N. Calculate the volume of the sphere.?
asked by Don Morris 
Language
Which sentence is written correctly? A ,Sometimes when the weather, is especially cold we get snow as early as October 31. B, Sometimes when the weather is especially cold we get snow, as early as, October 31 C, Sometimes, when the weather is especially
asked by Mary 
Psychology
Which of the following is/are possible to quantify using this data: red, red, green, blue, blue, blue, yellow, orange? A) Mean B) Median C) Mode D) Mean and Median E) None of the above
asked by Sarah 
Psychology
Which of the following is/are most likely to have statistical significance? Check all that apply. A) A teacher discovers that 6 out of her 7 classes performed better on a test while listening to softlyplayed classical music. B) 99 out of 100 people
asked by Sarah 
Psychology
Scientists believe their results to be statistically significant if no more than __________ of the results are due to chance. A) 1 in 1000 B) 1 in 100 C) 5 in 25 D) 1 in 20 E) 1 in 3
asked by Sarah 
Psychology
Are the results of the following study statistically significant? If so, why? A psychologist performs an experiment to see if she could condition a group of third graders to associate doing math with the positive feeling of eating sugar. For a one
asked by Sarah 
Math
Triangle ABC has vertices A(–4,–2), B(–1,3), and C(5,0). Triangle ABC is rotated 180° counterclockwise about the origin to form triangle A′B′C′. What are the coordinates of the vertices of the triangle A′B′C′? How could you determine the
asked by Elder 
Math
Jason has just finished icing the cake when he walks away his sister steals a piece the stolen piece is one sixth of the whole cake the stolen piece is two thirds covered in icing what fraction of the original cake was not iced
asked by Jazzy 
Math
a SQUARE ROOM HAS AN AREA OF 400 SQUARE FEET. wHAT IS THE SIDE OF THE ROOM?
asked by jOHNNIE 
Math
One brand of orange juice is sold in four different sizes. Size A The 8 1/2ounce bottle costs $0.99. Size B The 18 2/3ounce bottle costs $1.49. Size C The 48 1/4ounce carton costs $2.49. Size D The 64 3/4ounce carton costs $3.75. What is the unit rate
asked by I'll keep my name a secret 
Statistics
There are 14 qualified applicants for 3 trainee positions in a fastfood management program. How many different groups of trainees can be selected?
asked by Bobby 
Earth Science
1. Where are the newest parts of Earth’s crust located? a. on the top of mountains b. at midocean ridges c. at the edges of continents d. on plateaus my answer is c
asked by Nijah 
algebra 1
A theater group is having a carwash fundraiser.The group can only spend $34 on soap, which is enough to wash 40 cars. Each car is charged $5. If c represents the total number of cars washed and p represents the profit, which equation shows the relationship
asked by adam 
American History
I need help for a project and I only have this question left. Please help! How does R.J. Reynolds accomplishments affect the state today?
asked by me :) 
physics
Which of the following determine the terminal speed of an object? Choose all that apply. Weight Color Object's density Air density Relative speed between the object and the air Shape/Aerodynamics Surface area encountered by air
asked by maria 
English
On which character traits does the narrator of "The TellTale Heart" pride himself? A. his abilities to lie and steal B. his sneakiness and his fear C. his wit and his confidence D. his intelligence and his patience I think it's either C or D
asked by sun_and_moon_taeil 
Math
What general statement can you use to determine the ordered pairs of the vertices of a figure if it is reflected across the yaxis? A. If a figure is reflected across the yaxis, the xcoordinates of the vertices in the reflection will be the same as those
asked by Boop 
Algebra
Using x as the variable, write the equation or inequality that would correctly solve this problem. Question: Carmen needs at least 86 points to pass Karissa's score. Karissa has 631 points. How many points does Carmen have? (there was also some text under
asked by Skyler 
Mathematics
Hcf of two numbers is 8.one number is between 20 and other number is between 40 and 60.find two numbers.
asked by Anonymous 
Standard deviation
What percentage of the data, distributed normally and with the standard deviation, will fall within 2 standard deviations of the mean? A) 13.5% B) 34% C) 68% D) 95% E) 99%
asked by Sarah 
Psychology
Which of the following confidence levels are psychologists usually satisfied with to support that their results are not simply due to chance? A) 0.65 or 65% B) 0.75 or 75% C) 0.85 or 85% D) 0.95 or 95% E) 1.00 or 100%
asked by Sarah 
pre algebra
Jon drew a triangle with coordinates (5, 1), (7, −2) and (3, −1). He drew an image of the triangle with coordinates (5, −1), (7,2), and (3, 1). How did he make the image? A. He translated the original figure 2 units down. B. He translated the
asked by javier 
algebra
molly traveled to the lake and back.It took two hours less time to get there then it did to get back.The average speed on the trip there was 50 mph.The average speed on the way back was 30 mph.How many hours didthe trip there take?
asked by heli 
Math
for this triangle, determine tan A. then determine the measure of angle A. h ttps://upload.wikimedia.org/wikipedia/commons/6/6f/Rtriangle.svg side a is 1.3 side b is 2.5
asked by Anonymous 
history/culture
1. when referring to the auto logical condition of not being able to hear, deaf is written with a little “d” true *** false 2. “Big D” Deaf refers to deaf people who share a language (ASL) and a culture. true false*** 3. You become a member of the
asked by help please 
Social Studies
Would the ease of escape be least important to a terrorist?
asked by Joe 
physics
a cat is thrown up in the air at 12 m/s then free falls down a 70 m high cliff. what is its speed before it hits the ground? what is the cat's time falling before it hits the ground? vi= 12 m/s change in y = 70 m a= 9.81 m/s^2 vf= ? t=?
asked by Anonymous 
Math
Laura earns 134,350 per year. Use Laura's income tax rate to determine what her monthly deduction should be.
asked by Kayleigh 
Physics
What is the perfect world of Physics known for? I know no air resistance, earthbound, but what else? Also who created it?
asked by Anonymous 
math
How does (5√26)/2 equal 5√(13/2). Need explaining
asked by Anonymous 
Science
K2Cr2O7+H2SO4+ZnK2SO4+Cr2(SO4)3+ZnSO4+H2O
asked by Bibhusha 
math
my mom's class is taking a field trip to the science museum there are 23 students in class and a students admission tickets is 8 how much will the students tickets costs
asked by anya 
Math
6 +12 over 36= 6/9=3 is this right
asked by jOHNNIE 
Math
A fuel storage tank is in the shape of an equilateral triangular prism. The prism is 8 feet high and 10 feet long. When the tank is halffull, the depth of the fuel is what? note: I know the only way to find the depth is to cut the triangle in half
asked by Anonymous 
Physics
A flywheel turns at 600 rpm. Compute the angular speed at any point on the wheel and the tangential speed 0.5 m from the centre.
asked by Darshan 
Chemistry
Metaphorically, how can life on earth be compared to a spaceship???
asked by URGENT HELP!!! 
Calculus
Suppose that a doesn't equal 0. a) If a.b = a.c, does it follow that b = c? b) If axb = axc does it follow that b = c? c) If a.b = a.c and axb = axc, does it follow that b = c?
asked by #1 
Math
for this triangle, determine tan A. then determine the measure of angle A. h ttps://upload.wikimedia.org/wikipedia/commons/6/6f/Rtriangle.svg side a is 1.3 side b is 2.5 my answer is tan (A)=1.3/2.5 A=27.4744
asked by anonymous 
math
Three points P, Q and R are on level ground. Q is 240 m from P on bearing of 230°. R is 120 m to the east of P. A) Using a scale of 1 cm to represent 40 m, draw a diagram to show the positions of P,Q and R in the space provided below. B) Determine (i) The
asked by kd 
Statistics
A company's records indicate that 90% are error free,if 8records are randomly selected, what is the probability that at least 2 records have no errors.
asked by Mary 
Statistics
In an intelligence test administered to 1000 children, the average score was 42 and fasting the standard deviation 24.Assuming normal distribution, find the number of children with scores between 30 and 60
asked by Mary 
maths
LET THE PROBABILITY FUNCTION ON SET"S"=[a,b,c,d],find probability p(a) if p(b)=1/3,,p(c)=1/6 and p(d)=1/5..?
asked by Don Morris 
math
A ball always bounces three fifth of the height from which it falls. What fraction of its initial height does it rise after the second and third bounce?
asked by Calculus Joe 
science
if a strong odour is smelt continuously for some time , the sensation of than substance weakens
asked by ahsit 
Math
In a book store 60 identical books occupied a length of 1.5 meter on a shelf , find the length occupied by 50 such books on a shelf the no of such books needed to completely occupied a shelf that is 80 cm long?
asked by ABDUL ARHUM 
Science
What is the balance equation of decane
asked by Chemistry 
P H E
Seven Branchs of P H E
asked by Gbenu blessing 
algebra
How can you determine the coordinates of any image that is dilated with the center of dilation at the origin without graphing? Explain your reasoning.
asked by user 1 
Maths
The function g is defined by g(x)=2x^212x+13 for x>=4. Expalin why g has an inverse.
asked by Raj 
Maths
How to sketch the graph of y=f^1(x)
asked by Raj 
Maths
f(x)=2x+1 Sketch in a single diagram the graphs of y=f(x) and y=f^1(x), making clear relationship between the graphs.
asked by Raj 
Math
Logan drew Δ ABC on the coordinate plane, and then reflected the triangle over the yaxis to form Δ A'B'C'. Which statement is not true about these two triangles? A.Δ ABC≅Δ A'B'C' B. The two triangles have the same angle measures. C. The vertices of
asked by James 
Maths
f(x)=x^24x+k for x>=p State the range of f in term of k.
asked by Raj 
Maths
f(x)x^24x+k for domain x>=p State the smallest value of p for which f is oneone.
asked by Raj 
math
What is the distance between points F(2, 9) and G(4, 14)? Round to the nearest whole number.
asked by idkk 
Earth Science
How have phosphate minerals most affected human activity? A. Many people left their homes to seek wealth from phosphate mining in the 1800s. B. Phosphate mining operations have ceased due to environmental impacts.*** C. Using phosphate minerals in
asked by Madi 
Georgia history
Which weapon was invented during the woodlands period. a. atlatl b.midden c. clovis point d. bow and arrow... am i right
asked by gabriella bongo cat 
English
The climax of “Rikkitikitavi” occurs when
asked by Aria 
Language
Beeethoven, Ludwig van. 17701827. German composer of Flemish descent, born in Boon, Germany. Taught music by his father and Christian Neefe. Held several positions with royal musicians in Bonn (17831792). Studied in Vienna with Mozart, Haydn, and other
asked by Mary 
geometry
x+16=2x+1
asked by Anayelis 
language arts
compare and contrast Ribbons by Laurence yep and RikkiTikkiTavi by Rudyard Kipling
asked by STOPDELETINGTHEQUESTIONS 
Chemistry
John Roger's Stephens left a 3.5 kg iron shovel outside through the winter. The shovel now orange with rust, is rediscovered in the spring. It's mass is 3.7kg. How much oxygen combined with the iron?
asked by damon 
Math
John draws a square on a coordinate plane. Then, he draws an image of the square 3 units to the right of the original square. What is true about the corresponding sides of the original figure and the image?
asked by Grace 
chemistry
Consider a mixture of 50% water and 50% of mass ethanol, whose relative density is equal to 0.9138. Get the mass of ethanol contained in 100m3 of mixture.
asked by damon 
Physics
A student stands on a scale in an elevator that is accelerating at 2 m/s2. If the student has a mass of 97 kg, to the nearest newton what is the scale reading?
asked by Jason 
global history
What lines measure distance in degrees north and south of the equator?
asked by bella 
Technology
What does a head frame do?
asked by Nelly 
AP US History
Which did the Middle Colonies and the Southern Colonies have in common? A. Both depended largely on forestry and fishing. B. Both built economies on a strong agricultural base. C. Both had few natural resources and relied on trade. D. Both had many mineral
asked by Natalie 
algebra
Exponent Basics Quiz Part 2: Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. "Solve 2s3 − 4r2 if r = 1 and s = 5." Is it 35?
asked by MathPerformer 
Math
John draws a square on a coordinate plane. Then, he draws an image of the square 3 units to the right of the original square. What is true about the corresponding sides of the original figure and the image? A. The corresponding sides are skew. B. The
asked by Grace 
English
Compare and contrast your independent reading selection with one or two other selections you read in this unit. Support your response with at least two pieces of evidence from your independent reading selection. Be sure to get the title and the author of
asked by help please 
Math
The radii and angle substended at the center of circle are given as follow 12cm,40
asked by Benjamin 
geometry
What do you call a duck that steals?
asked by Alex 
math
Enter your answer and show all the steps that you use to solve this problem in the space provided. Solve 2 s 3 − 4 r 2 if r = 1 and s = 5 . plz some one help mrs.sue?
asked by jar 
chemistry
what is hydrogen?
asked by gift 
english
Write your analysis then reactions or response to some sentence or thought in the essay, "Where I Lived, and What I Lived For" in this module. You might decide to argue for or against Thoreau's stance, or you might want to apply one of Thoreau's insights
asked by mason 
Math
29:30
asked by Anonymous 
Education Technology
In three sentences, identify one Cloudbased application you use regularly and explain how it demonstrates the benefits of Cloud computing. When you have completed the activity, upload the document to the class Drop Box for evaluation.
asked by Mr. Sue 
Social Studies
What are examples of Alexander the Great’s love of learning that he spread? Could someone point in the direction of some examples? The text I was given does not supply much information.
asked by Carmen33 
math
1. Bella's recipe for a batch of cookies calls for 4 1/2 cups of flour. if she wants to make 2/5 of a batch of cookies how much flour should she use? 2/5 * (4 1/2) = 2/5 * 9/2 = 9/5 = 1 1/5 cups flour 2. A submarine is at an elevation of  9 4/7 meters. It
asked by Jared 
Math
Solve the following word problem for the portion, rate, or base. A medical insurance policy requires Ana to pay the first $100 of her hospital expense. The insurance company will then pay 60% of the remaining expense. Ana is expecting a short surgical stay
asked by Anonymous 
Math
80% of the students at a college are from instate. If 4,800 students are from instate, how many students attend the college? I got 3,840. but I don't think that's right
asked by Anonymous 
Math
Lcm of two numbers is 40.one number is 5 find the other number
asked by Anonymous 
Graphs math
If the mean score on a test is 60, the data are distributed normally, and the standard deviation is 5, what percentage of the test scores will be found between 55 and 60?
asked by Sarah 
Math
8.47 3 over five I have tried this one and I get 508.2 and its not taking my answer. any help would be appreciated!
asked by Anonymous 
Psychology/math
Which of the following are correct statements about statistical significance? Check all that apply. Statistical significance A) always equates to importance B) requires large data samples C) requires positive research data results D) has consistent results
asked by Sarah 
Math
ms sue i have a question what is the square root of 5006 help pls im trying to finish my home work while im on the bus thanks.
asked by yz450f rider 
chemistry
a gas tank holds 2685 L of propane, C3H8 at 830 mm Hg. What is the volume of the propane at standard pressure
asked by angela 
geography
Which was an effect of the establishment of the European Union? Select the two correct answers. A. Member countries trade freely without trade barriers. B. Citizens can move among nation states to work and study. C. National borders have been erased. D.
asked by adam 
Math
Jared said "7.48 rounds to 7.5 and 7.5 rounds to 8" so 7.48 rounds to a right and explain if Jared's reasoning is correct.
asked by Lindaway 
Calculus
Consider the curve C parametrized by (x, y) = (cos (5t), sin(−4t)), for −π ≤ t ≤ 2pi How would I go about finding how many times the curve is traversed? Also, how would I find out the radius and center of the circle is? I don't need answers I just
asked by Phil 
Math
How to determine if the graph shows two quantities that vary directly and how to determine the constant of proportionality?
asked by URGENT 
Math
P Maria and her family went to a movie they bought two adult tickets for $8 each and three students tickets for $5 each day paid with two $20 bills how much change did they get back?
asked by Lindaway 
Math
Check for reasonableness Jim paid 9.82 for a book he told Nora the car was about 10.00 was 10.00 a reasonable rounded amount EXPLAIN!!
asked by Lindaway 
History
What was the main purpose of the Homestead Act? A.to bring an end to cattle drives B.to encourage settlement on the Great Plains C. to defeat the Native Americans D.to provide a market for steel plows
asked by :P 
Math
Last question in a list of numbers the pattern increases by 0.001 as if the third number in the list is 0.046 what is the first number in the list EXPLAIN!!how you know
asked by Lindaway