Questions Asked on
April 30, 2020

Mathematics
Kinyua spent 1/4 of his net January salary on school fees .He spent 1/4 of remainder on electricity and water bills .He spent 1/9 of what remained on transport .if he finally has 8400 calculate total January salary
asked by Anonymous 
science
Which of the following adjustments would cause an image to change from real to virtual? a)moving the object from the focal point of a converging lens to a position inside the focal length b)moving the object from the focal point of a diverging lens to a
asked by Hi 
science
Which of the following choices correctly explains why light separates into colors when moving through a prism? a)The different colors of light travel at different speeds through glass so they refract at different angles. b)The different colors of light
asked by Hi 
Statistics
Find the area under the standard normal curve between z =  1.5 and z = 2.5
asked by Moe 
Math
3. Kara needs 15 apples to make 2 pies. She made this table to show how many apples she would need for different numbers of pies. Number of apples 15 , 30 , 45 , 60 Number of pies 2 , 4 , 6 , 8 , 10, 12 At this rate how many apples will Kara need to make
asked by Clown Express 
Solar
Which of the following processes is used in order to fabricate polysilicon?
asked by V Roy 
chemistry
When magnesium metal (Mg) is burned, it forms MgO. How many moles of oxygen gas (O2) are needed to burn 20 moles of Mg? The balanced equation is: 2Mg + O2 > 2MgO
asked by nuzhat 
Math
Equation practice with angle addition Given: m∠AOCm, angle, A, O, C is a straight angle. \qquad m \angle BOC = 6x + 29^\circm∠BOC=6x+29 ∘ m, angle, B, O, C, equals, 6, x, plus, 29, degrees \qquad m \angle AOB = 3x + 124^\circm∠AOB=3x+124 ∘ Find
asked by Lexi 
Science
What evidence exists to support the theory of evolution at the amino acid level
asked by Bella 
math
Find the radius of a sphere with a volume of 972π cubic millimeters.
asked by Jessica 
SCIENCE
3.Describe two applications each of hydrodynamics and aerodynamics.
asked by NEED HELP ASAP 
Mathematics
A recipe for cookies requires 2/3 cup of butter.Rama wants to make 3/4 of the recipe.how many cups of butter should rama use to make the cookies?
asked by Cindy 
Mathematics
Work out the product of 1 4/5 and 1 5/8
asked by Stella 
physics
The energy gained by an electron when it is accelerated by an electric field is ___ the energy lost due to collisions. greater than equal to*
asked by Jimmy Neutron 
Solar
Let's assume that solar light reaches a silicon solar cell with an angle of incidence of \(\theta_i=0^o\). For simplicity, let's consider the refractive index of silicon to be \(n_{Si}=3.5\). The refractive index of air is \(n_{air}=1\). What percentage of
asked by V Roy 
Math
The table below shows the results of flipping two coins. how does the experimental probability of getting at least one tails compare to the theoretical probability of getting at least one tails Outcome: HH HT TH TT # of times Tossed: 28 22 34 16 Question
asked by BKCRAZE 
Science
Describe two aspects of dams that depend on the proper flow of fluids.
asked by Random 
math
A jar contains 5 red marbles and 8 white marbles. Event A = drawing a white marble on the first draw Event B = drawing a red marble on the second draw If two marbles are drawn from the jar, one after the other without replacement, what is P(A and B)
asked by j 
Chemistry
The oxidation of copper(I) oxide, Cu2O(s) , to copper(II) oxide, CuO(s) , is an exothermic process. 2Cu2O(s)+O2(g)⟶4CuO(s) The change in enthalpy upon reaction of 70.64 g Cu2O(s) is −72.08 kJ . Calculate the work, 𝑤 , and energy change, Δ𝑈rxn ,
asked by HELP!!!!!!!! 
mathematics
a kite with a string 150 feet long makes an angle 45 with the ground, assuming the string is straight ,how high is the kite?
asked by shandy 
algebra
A street that is 227ft long is covered in snow. City workers are using a snowplow to clear the street. The snowplow has tires that are in 2.5ft diameter. How many times does a tire have to turn in traveling the length of the street? Use the value 3.14 for
asked by asm 
Solar
We have discussed that indirect band gap materials have a lower absorption coefficient than direct band gap materials, due to the fact that the charge carriers need a change in energy AND momentum in order to be excited. If both Si and Ge are indirect band
asked by V Roy 
probability
An organization will give a prize to a local artist. The artist will be randomly chosen from among 10 painters, 3 sculptors, and 5 photographers. What is the probability that the artist chosen will be a sculptor or a photographer?
asked by alex 
Math
A dog chased after a dandelion for 0.5 km, stopped to take a rest, and continued to chase after the dandelion for 750 m. How many meters did the dog travel in total?
asked by DWayne 
Science
What is one effect of the Gulf Stream? A: Summers in Spain are hotter than summers in Maine. B: Summers in Florida are hotter than summers in Sweden. C: Winters in Iceland are colder than winters in Georgia. D: Winter days are shorter in England than in
asked by BruhNah13 
probability
Confidence interval interpretation Every day, I try to estimate an unknown parameter using a fresh data set. I look at the data and then I use some formulas to calculate a 70% confidence interval, [Θˆ−,Θˆ+], based on the day's data. Are the following
asked by Skyfall 
MATHS
Researchers at Jackson Hospital asked 40 randomly selected patients about their sleep habits. Sixteen reported sleeping 8 hours or more each night. If there are 700 patients in the hospital, estimate the number of patients who sleep 8 hours or more each
asked by Mudkipchan 
Algebra
A chain saw requires 6 hours of assembly and a wood chipper 4 hours. A maximum of 48 hours of assembly time is available. The profit is $ 190 on a chain saw and $ 220 on a chipper. How many of each should be assembled for maximum profit? To attain the
asked by Joe 
physics
A 8 kg object is pulled along a horizontal surface at a constant speed by a 30 N force acting 60 degrees above the horizontal. How much work is done by the force as the object moves 7 m?
asked by Anonymous 
Math
16 + p = >50
asked by HELP HELP HELP 
Mathematics
A quarter of jones marbles are blue.If he has 12 marbles.How many marbles does he have altogether?
asked by Rosita 
Math
I can't figure out how to do this 2/3+1/9? Can anyone help me?
asked by pinkfox 
English
Grandma Sands tells Momma that “things are different from what they were when you left. Nearly everything changes.” What does Grandma Sands mean by this? What has changed? How does this change affect the characters in the story?
asked by Anonymous 
social studies
Select the boxes in the table to show which geographic features are found in each country. archipelago coastal plain China Japan Korea Japan Korea
asked by simqs 
Mathematics
The first side of a triangle is 7 cm shorter than twice the second side. The third side is 4 cm longer than the second side. The perimeter is 77 cm. Which equation represents how to find each side? a) 4x + 3 = 77 b) 3x  11 = 77 c) 3x  3 = 77 d) 4x  3 =
asked by Reyna 
algebra
Two similar data sets are being compared. The standard deviation of Set A is 4.8. The standard deviation of Set B is 6.5. Which statement about the data sets is true? a)The mean of the data in Set B is greater than the mean of the data in Set A. b)The
asked by Hi 
Mathematics
he distance between two cities on a map is 2 inches. The map scale is ¼ inch = 5 miles. What is the actual distance between the cities?
asked by Melissa 
English
In lines 5160 (“O, she doth teach the torches to burn bright”), Romeo’s first lines upon seeing Juliet, find an example of alliteration, personification, and simile.
asked by random 
Math
There is a bag with 10 marbles. There are 6 blue marbles and 4 red marbles. What is the probability of picking 2 red marbles without replacement?
asked by Anna 
Mathematics
There is a bag with 10 marbles. There are 6 blue marbles and 4 red marbles. What is the probability of picking 2 red marbles WITH REPLACEMENT!
asked by Anna 
Mathematics
Which of the following is a true statement? 1. 9 > 4 2.10 > 2 3.  3 < 1 4. 6 < 12 My answer is 2
asked by Hi 
precalculus
A flagpole at right angle to the horizontal is located on a slope that makes an angle of 12∘ with the horizontal. The pole's shadow is 16 meters long and points directly down the slope. The angle of elevation from the tip of the shadow to the sun is
asked by Charlie 
Algebra
12. Sn = 1550, n = 3, r = 5 13. Sn = 1512, n = 6, r = 2 14. Sn = 6854.4, r = 2, an = 3481.6 15. Sn = 4860, r = 3, an = 3280.5
asked by Anonymous 
math
what is 4×4 to the power of 10
asked by Rhino 
probability
Bias and MSE We estimate the unknown mean θ of a random variable X with unit variance by forming the sample mean Mn=(X1+⋯+Xn)/n of n i.i.d. samples Xi and then forming the estimator Θˆn=13⋅Mn. Your answers below can be functions of θ and n. Follow
asked by Skyfall 
creative writing
the clover told me he was good luck
asked by william 
Chemistry
What mass of Cl2 gas is needed to react with 2.48 mol TiO2
asked by Connor 
physics
Which of the following statements about electromagnetic radiation is true? It transfers energy to objects in the path of the electromagnetic waves. It can be converted to other energy forms. It transports the energy of electromagnetic waves. all of the
asked by Jimmy Neutron 
Social Studies
Choose 2 of the following and describe how the ideas of the Hebrew traditions are reflected in Western civilization: belief in God, observance of law, practice of the concepts of righteousness and justice, and importance of study. (This is for a project.
asked by Hailey 
physics
___3.0Ω__   3.0Ω 3.0Ω _____ _____ __3.0Ω__ What is the equivalent resistance for the resistors in the figure shown above? 1.3Ω 2.2Ω* 3.0Ω 12.0Ω please confirm :)
asked by Jimmy Neutron 
math
Margaret is playing a game with a standard deck of 52 cards which contains 4 jacks. The first player to select a jack gets to start the game. What is the theoretical probability that Margaret, when choosing first, will choose a jack?
asked by mekhi scott 
Biology
://usstatic.zdn.net/files/d9c/f81959f216713ccdf1617abcfc0b09f3.jpeg Go to this website and please help!!
asked by anonymous 
math
salesmann is paid a salary of Rs .500 per month and one percent commission on sales. if his total income in one month is Rs. 750. find the value of his sales in that month.
asked by yasir 
Mathematics
Calculate the line of symmetry and the turning point of (8 + 2x) (5 − x)
asked by Mike 
mathematics
a population is increasing at 2.5% p.a. If it is 20400000 now, how large was it a year ago
asked by Justin Kim 
Further maths
The sum of the first four terms of a linear sequence (A.P.) is 26 and that of the next four terms is 74. Find the value of (1)the first term (2) the common difference
asked by Anonymous 
Math
Which function is a quadratic function? A. y= 1/x B. y= y=5x  7 C. y= 2x^2+2x **** D. y= x
asked by Stuck 
algebra
Solve 3(x^4)^3 + (3*x^4)^3
asked by Anonymous 
algebra
You want to read more than 50 pages in a book this week. You have already read 16 pages. Write and solve an inequality to find how many more pages you need to read this week. Be sure to write your answer as a solution set.
asked by Arabel 
statistics
The average electric bill in a residential area is $72 for the month of April. The standard deviation is $5. If the amounts of the electric bills are normally distributed, find the probability that the mean of the bill is less than $78.
asked by helppp 
Physics
Work and heat transfer calculation in a closed system Find the pressure, temperature and volume at the end of each of the four processes. Then calculate the work done during each process and the net amount of work done. Finally calculate the net amount of
asked by hhuu 
Maths
50400000 in standard form
asked by Ayoushree 
Maths:series
Was wondering Do they exist a general formula for something like this?? √1+√2+√3+√4..........√n I just thought of it though wanted to ask if there is
asked by Isaac 
English
Which of the following sentences uses a predicate noun? A. Jessica’s bike ride was uneventful. B. The owner of the bike is she. C. Jessica is the owner of the pink bike.** D. Jessica’s bike looks brand new. C? Which sentence has proper subjectverb
asked by IAMSTILLHERE! 
Probability
Let K be a Poisson random variable with parameter λ : its PMF is pK(k;λ)=λke−λk!,for k=0,1,2,…. What is the ML estimate of λ based on a single observation K=k ? (Your answer should be an algebraic function of k using standard notation.)
asked by bob 
Algebra
1. For ABC what is the value of cosC. adjudant= 54 hypotnuse=90 opposite=72
asked by Hi Timmy 
Probability
We estimate the unknown mean θ of a random variable X (where X has a finite and positive variance) by forming the sample mean Mn=(X1+⋯+Xn)/n of n i.i.d. samples Xi and then forming the estimator Θˆ=Mn+1n. Is this estimator unbiased? unanswered Is this
asked by bob 
English
Which sentence has proper subjectverb agreement? A. Tom and Jody throws a great party. B. Tom and Jody throw a great party.*** C. Tom and Jody gives a great party. D. Tom and Jody giving a great party. Is it B WriterTeacher??
asked by IAMSTILLHERE! 
social studies
Summarize the New Deal Program. Make sure to cover the following: Why was it created? What was it intended to do? Why did FDR create the programs in the areas that he did?
asked by Efrain 
Math
two friends want to share 9 cookies so each get exactly the same amount. How many cookies do we each get?
asked by Anonymous 
Spanish
practicar in Familiar Command escribir i’m familiar command escuchar in familiar command let in familiar command llegar temprano in familiar command
asked by Georgina 
English
When did Mary Yu Chang enjoy herself during the war?
asked by mario 
Math
Compute the largest possible distance between two points A and B, where A is a point on the sphere of radius 19 with center (2, 10, 5) and B is a point on the sphere of radius 87 with center (12, 8, 16).
asked by jake 
English
Look up the letter from Thomas Jefferson to Benjamin Banneker. What is the best text structure and give 2 pieces of evidence thank you to whoever does this.
asked by Reese 
Math
Find the next three terms of the sequence. 2, 12, 72, 432, ... a) 1,728, 6,912, 27,648 b) 1,728, 10,368, 62,208 c) 2,592, 10,368, 41,472 d) 2,592, 15,522, 93,312 i dont know how to solve this, it doesn't make sense to me please help!
asked by cheese 
Math
A garden Is in the shape of a rectangle 44 feet long and 26 feet wide if fencing costs $8 a foot
asked by Anonymous 
Mathematics
How much will 20 pencils cost if it costs $3.50 for 100 pencils?
asked by Lua Formatter 
math
at union springs elamentary shcool car riders line up at 2:15 pm . after 15 minutes it is time for the other students go home ? show an example how you found the ansewer by drawing a time line . ilatrate
asked by china duff 
social studies
strong influence of African traditions in Brazil
asked by taylor 
Social studies
What is Wahhabism? Where does it have the most influence?
asked by doge master 
Music
Which type of scale follows this pattern of whole and half steps? WWHWWWH A. major B. natural minor C. harmonic minor D. melodic minor i know its not major but i dont know the diffrence between the other 3
asked by Anonymous 
Physics
How would you make a light bulb light up with one battery, one light bulb, and ONE wire?
asked by Apple Annie 
Texas history
1. How was Texas postwar growth different than early 1900s oil boom population growth? A) Texas rapidly change from a rural to an urban state As cities grew up around refineries B) Most of the rapid postwar population growth in Texas was concentrated in
asked by Nobody 
math
A paper cup has the shape of a cone with height of 8cm and a radius of 4cm at the top. Water is poured into the cup at a rate of 2cm^3/s. How fast is the water level rising when the water level is 4cm deep?
asked by anonymous 
Chemistry
Which part(s) of the reaction H2O(g) + C(s) ⇀↽ H2(g) + CO(g) will be favored by an increase in the total pressure (resulting in compression)? 1. Neither is favored. 2. reactants 3. products 4. Unable to determine Not sure how to do this
asked by H 
Solar
Consider a cSi solar cell whose fingers have a resistance \(R=0.1\Omega\). What would be the finger's resistance (in \(\Omega\)) if the finger's width is doubled and the finger's height is one third of its initial value?
asked by V Roy 
math
using first principles to differentiate y = 1/(√ x). I tried using this method many times but I get different answers all the time. I can do it using the power rule but I am not sure what I am doing wrong.... my answer is 1/(2x^3/2) using power rule
asked by anonymous 
Mathematics
5.6 X 10^8 + 7.8 X 10^7 Written in Scientific Notation
asked by Molly 
mathematics
Jenny bought scrapbooking supplies for $156.50. She paid $10.17 in sales tax. What was the sales tax rate on the supplies?
asked by Jacob 
science
What happens to air temperature when the altitude decreases?
asked by dude 
Math
A fitness club offers two membership plans. Plan A: $30 per month Plan B: $18 per month plus $2 for each visit to the club What is the equation for each plan?
asked by Hi 
English
1.persuasion is achieved by the speaker's personal character when the speech is so spoken as to make us think him credible 2. secondly, persuasion may come through the hearers when the speech stirs their emotions. 3. thirdly, persuasion is effected through
asked by 𝓜𝓘𝓐 
english
PLEASE HELP Which of the following TWO statements would be considered hasty generalizations? ◻People over the age of 50 are not good with new technology. ◻George W. Bush was a pretty average president. ◻He has never shot a gun so he shouldn't be
asked by 𝓜𝓘𝓐 
social studies
What did Francis Bacon believe scientists should rely on to explain the laws of nature? A. Greek learning B. Church teachings C. mathematics D. inductive reasoning
asked by jeremiah 
mathematics
At Arthur’s Bakery, 1 8 of the baked goods are cakes, and the rest are pies. One third of the pies are cherry. What fraction of all of the baked goods at Arthur’s bakery are cherry pies?
asked by dale 
Geometry
How do I go about this? I need details solution to study find any given rectangle ∆ R=(xbase0,xbase0+w).(ybase0.ybase0+h) if we define function A A(R)= ∫ ∫R e^(2iπ(x+y)dxdy ????
asked by Isaac 
math
What are independent and dependent events? How about replacement/without replacement?
asked by Mariana G. 
Math
What is yintercept??? Is it like slope?????
asked by Aquaman 
math
the folling shapes are all quadrilrterals because they all have four sides witch quadrilateral has equal sides but does not have equal angles
asked by regan 
Math
The tent is 30ft wide with a center pole that is 7ft high what is the angle of elevation from the ground to the top of the pole
asked by Jasmerae Martinez 
Math
What is the explicit equation best models the situation: 10.3, 9.6, 8.9, 8.2, ...
asked by Klara 
Math
What is the explicit equation best models the situation: 10.3, 9.6, 8.9, 8.2, ... Is it: t(n)=0.7n+10.3? or is it: t(n)=0.7n11?
asked by Klara 
Math
a vegetable garden is in the shape of a rectangle, surrounded by 296 feet of fence. the length of the garden is 61 feet more than twice the width of the garden. fins the dimensions of this garden
asked by Semaj 
Chemistry
What is the Acid, Base, Conjugate Acid, and the Conjugate Base of HClO4(aq) + H2O(l) ⇄ H3O+(aq) + ClO4–(aq)?
asked by Beckham 
Science
Why are there colors on a rainbow?
asked by Ro 
Math
Hilary Duff purchased a rare unicorn succulent for $36 in the first year & of course she has amazing taste, so it began increasing in value. The value followed a pattern appreciating it's value by 20% each year. Which recursive equation best models the
asked by Klara 
Maths
2. Researchers at Jackson Hospital asked 40 randomly selected patients about their sleep habits. Sixteen reported sleeping 8 hours or more each night. If there are 700 patients in the hospital, estimate the number of patients who sleep 8 hours or more each
asked by Mudkipchan 
Chemistry
Will AgCl precipitate out when equal amounts of 4.0 × 105M AgNO3 and 1.0 × 105M NaCl are mixed? (Ksp for AgCl = 1.8 × 1010)
asked by jordan 
Chemistry
The mineral CaF2 has a solubility of 2.1 x 10^4 M. What is the Ksp of CaF2? pls Bob if you're here!
asked by jordan 
math
Exercise: A simple CI 1/2 points (graded) Let θ be an unknown parameter, and let X be uniform on the interval [θ−0.5,θ+0.5] . Is [X−2,X+2] an 80% confidence interval? YES correct I form a confidence interval of the form [X−a,X+a] . What is the
asked by Skyfall 
math
Hilary Duff purchased a rare unicorn succulent for $36 in the first year & of course she has amazing taste, so it began increasing in value. The value followed a pattern appreciating it's value by 20% each year. Which recursive equation best models the
asked by Rubert 
maths
newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporter's data is valid or not? A. The data
asked by Mudkipchan 
Social Studies
Unlike the peoples of the plane cultures who built portable homes called teepees the people of the puebloan culture built permanent homes made from? A. Wood B. Sod C. Bison hides D. Adobe please helppp
asked by Student 3 
Chemistry
Which can be used as a standard solution in neutralization titrations? a. Na2CO3 c. CH3COOH b. NaHCO3 d. NaOH
asked by necmi 
Neural
Teresa is a 21yearold female who was involved in a motor vehicle accident. She was ejected from her truck upon impact with another vehicle and suffered a significant brain injury. Her GCS in the field was 12 and improved to 13 upon admission to the
asked by Anonymous 
Chemistry
Which can be determined titrimetrically with the standardized HCl solution? a. NH3 b. NaNO3 c. CH3COOH d. NaCl
asked by BurakC. 
Mathematics
How do I go about this? I need details solution to study find any given rectangle ∆ R=(xbase0,xbase0+w).(ybase0.ybase0+h) if we define function A A(R)= ∫ ∫R e^(2iπ(x+y)dxdy Assuming the range for (x,y) are for all real positive integer ....where do
asked by Isaac 
Chemistry
The Ksp of AgI is 8.5 × 1017. Find the solubility of AgI in M
asked by jordan 
Math
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asked by Anonymous 
MATH
Suppose that θ is an angle in standard position whose terminal side intersects the unit circle at , 1161−6061. Find the exact values of secθ, cotθ, and sinθ.
asked by MARYAM 
Spanish 202
Hello Sra, I hope you are well. If you don't mind, could you help me with my answers? LOS MANDATOS AFIRMATIVOS. Forme mandatos afirmativos directos según el ejemplo: Ejemplo: BUSCARLO (tú) > Búscalo 1. COMER (nosotros) > __________ Comamos 2.
asked by Isabel 
Science
a circular section 8.0cm in diameter is marked out 9f a rectangular plate 20cm ×18cm in dimensions. if the centre of the section marked out lie on the diagonal abd is 7.0cm from the centre of gravity of the rectangular plate, determine the position of the
asked by Promise 
Chemistry
I need to obtain "3Hexenedioic acid" by using solely an alkene. Can you help me to find what is the alkene? And please do not forget required reagents and catalysts
asked by Alexa 
mathematics
22. The following data are from a study of the number of pounds subjects lost after 3 months on a regimen of 1) only diet and exercise or 2) diet and exercise with a personal trainer or 3) diet and exercise with a support group. You want to determine if
asked by Anonymous 
Math
In how many distinct ways can you arrange the letters PERMUTATION?
asked by hodan 
math
How do you find the vertical asymptote of f(x) = ln(1x)
asked by emma 
Math
Hello! Here is my question. What is an equivalent expression to 42.50/8.50? I'm having trouble finding ways to find equivalent expressions to this certain problem.
asked by Ekenedilichukwu 
Physics
A puck is moving on an air hockey table. Relative to an x, y coordinate system at time t = 0 s, the x components of the puck's initial velocity and acceleration are v0x = +2.2 m/s and ax = +2.5 m/s2. The y components of the puck's initial velocity and
asked by Jane 
algebra
The total area under the normal distribution curve is equal to a probability of
asked by Anonymous 
Algebra
Jackie scored 81 and 87 on her first two quizzes . Write and solve a compound inequality to find the possible values for a third quiz score that would give her an average between 80 and 85, inclusive.
asked by nieh