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Posts by brittney

Total # Posts: 251

Social studies
a.

Algebra
What is a simple way to tell that -314-314 is not the slope of this graph? Math item stem image CLEAR CHECK The yy-intercept is -312-312, not -314-314. A slope cannot be a mixed number. The line slants upward, so the slope is positive. The change in xx from AA to BB is positive.

Fraction
How much pizza does eight of the friends get if they have one large pizza that they share equally.

Science
What is the acceleration of a kg object if force of 3 n is applied to it?

physics
A plane 65 m above the ground is flying directly toward a target at 50 m/s . Part A At what distance from the target should the pilot drop the weight?

Algebra 2B
Come up with a new linear function that has a slope that falls in the range −< < 1 0 m . Choose two different initial values. For this new linear function, what happens to the function’s values after many iterations? Are the function’s values getting ...

Algebra 1
The third term of an arithmetic sequence is 14 and the ninth term is -1 find the first four term of the sequence

Calc-Math
Thank you for the help! Completely forgot about that rule... woops

Calc-Math
y^2+xy-3x=-5 dy/dt=-4 x=3 y=1 find dx/dt. i tried doing 2y(dy/dt)+ydx/dt-3=0 but i am not getting the right answer. Please tell me where i am going wrong.

Physics
A child sitting 1.80 m from the center of a merry-go-round moves with a speed of 1.45 m/s . Calculate the centripetal acceleration of the child.Calculate the net horizontal force exerted on the child. (mass = 28.5 kg )

Language
Yes Personification because in line 2, it says that the sun is shining with all his might.

math
45 / 6 = ?

Math. Pls. Help!
I think you need to look at the data and the questions?

Math. Pls. Help!
What factors should you consider when determining the best graph or display to represent a given set of data? In your answer, choose a set of data relevant to your life and explain the best way to display it.

math
-66, -49, -44, -11, 49

trig
Find the exact values requested. No decimal approximations. Given that cot θ = 4 for an acute angle θ, A. Find sinθ. B. Find cos(2θ).

trig plz help
Solve, finding all solutions in the interval [0, 2π). tan(3x) = -1

math 108 trig
1.Solve, finding all solutions in [0, 2π). cosx sin2x + sinx cosx - sinx = 0 2.Solve, finding all solutions in [0, 2π). 3sec x = 2tan^2x

Math
A square has a side length of 18 feet . This square is dilated by a scale of 1/2 to create a new square . What is the side length of the new square

Physics
How long does it take an automobile traveling 62.9 km/h to become even with a car that is traveling in another lane at 48.9 km/h if the cars’ front bumpers are initially 130 m apart? Answer in units of s.

intermediate algebra
He purposely made a problem with not enough info.

intermediate algebra
This is word for word what my teacher wrote

intermediate algebra
the radiator in Johns car contains 16 L of antifreeze. How much of this mixture should be drained and replaced with pure antifreeze so there will be a mixture of 50% antifreeze.

reading and writing
d.

reading and writing
In which sentence does the italicized word have a negative connotation? A. Although she had worked hard in high school, Ruth found the college courses challenging. B. Jenna's green eyes and dark eyelashes gave her an exotic look. C. Jack, who is the most outspoken member ...

mathematics concepts
Fraction symbols can usually be safely introduced A. at the beginning of third grade. B. near the end of first grade. C. near the end of third grade. D. at the beginning of second grade. my answer is c.

math concept
Sarah understands that if there are 11 ones, the first 10 move over to the tens column as one unit (i.e., one group of 10). What concept does this understanding represent? A. Renaming B. Regrouping C. Borrowing D. Place value my answer is a

mathematics concepts
Joseph is making different shapes with a rubber band and a geoboard. Which of the following would be a geometric concept that Joseph is informally exploring? A. Estimation B. Patterns C. Volume D. Probability my answer is b.

cconcept development
I took the exam and my answer was correct.

cconcept development
When a teacher chooses learning objectives for a child, which question should be asked? A. What should Kelly learn next? B. Where's Kelly in the learning process? C. Do the plan and materials fit my lesson? D. Has Kelly learned what was taught? a.

concept development
A basic rule in evaluating learning activities is to be sure A. the child has no prior knowledge. B. a variety of science process skills are used. C. the strategies are limited. D. the textbook provides step-by-step photos. my answer is b.

concept development
thanks

concept development
The answer was correct. I had 100 point in my exam.

concept development
I reread the chapter and I find the answer.is d.

concept development
the question is not specific.

concept development
Which of the following process skills is generally more important for use with older children? A. Observing B. Communicating C. Classifying D. Predicting my answer I think is c.

Math
A rectangle wheat field is 10^5 m long as 10^5 m wide. What is the area?

Chemistry
An original samplemof an unknown potassium chloride/potassium cholate mixture weighed 1.042g before heating and 0.943g after heating. How many grams of oxygen were released?

chemistry
I'm sorry the reast says to calculate the van't Hoff factor (i) for MX at this concentration.

chemistry
A 0.97 m aqueous solution of an ionic compound with the formula MX has a freezing point of -2.5 ∘C .

Math.
Hah the funny thing was, I was eating a muffin when I read 'muffin man'. I almost choked. On my muffin.

English 3
"When in the Course of human events, it becomes necessary for one people to dissolve the political bands which have connected them with another, and to assume among the powers of the earth, the separate and equal station to which the Laws of Nature and of Nature's God...

physics
A marble rolls off the edge of a table that is 0.82 m high. The marble is moving at a speed of 0.11 m/s at the moment that it leaves the edge of the table. How far from the table does the marble land?

math
Explain and show hot to convert 0.765 to fraction

math proportions
What is 1000/x = 25/64

math
There are 40 students. 16 students missed class. What % of students attended class

science
I measure my head fist 28m , 65cm now i'm stuck trying to figure out how to measure my head in mm and km. I need help please.

5th grade math
What is the best estimate for the product of 289 and 7

Physics
How is the Sky Screamer at Six Flags an example of Newton's First Law?

psychology
Why do negative emotions make it hard to learn or work toward a goal?

medical coding
this 32-year old female was burned by hot grease in her kitchen 1 week ago. She is seen in the hospital-based wound clinic for large dressing changes on both upper extremities following second-degree burns to both arms. This is accomplished without requiring anesthesia. I got ...

Statistics
A survey of 1,000 adult Americans included the following question: "If the military draft were reinstated, would you favor or oppose drafting women as well as men?" Forty-three percent responded that they would favor drafting women if the draft were reinstated. Using...

math
Please Help!!!!! If i spent 3 hours in homework and of that time 1/3 on math and 1/5 on science, what method could i use to solve this problem????????? Please Help Thanks!!!!

World History
1. Greek and Roman legacies to the world include contributions to modern law and government. Describe how modern law and government have been influenced by classical Greece and Rome. Include at least two examples from the Greeks and two examples from the Romans.

Science
A.topsoil

integrated physics and chem
METALLIC BONDS There is one more common type of bond—the metallic bond. This type of bond, true to its name, occurs between atoms of metals. It is responsible for giving metals many of their physical properties, especially their ability to conduct electricity. Most metals...

Math
A motorist traveling 55 mph is being pursued by a highway patrol car traveling 65 mph. If the patrol car is four miles behind the motorist, how long will it take the patrol car to overtake the motorist?

Chemistry - Please Help!
XeO3 + I- ----> Xe + I2 (acidic solution) CN)2 -----> CN- + OCN- (basic solution) MnO2 + SO32- ---> Mn2+ + S2O62- (acidic solution) H2SeO3 + H2S -----> S + Se (acidic solution) Cl2 ---> Cl- + ClO3- (basic solution) ClNO2 -----> NO3- + Cl- (acidic solution)

Chemistry
Balance the following equation for a basic solution. MnO4-+C2O4-2= Mno2 + CO3-2

math
Kittens weigh about 100 grams when born and gain 7 to 15 grams per day. If a kitten weighed 100 grams at birth and gained 8 grams per day, in how many days will the kitten triple its weight?

chemistry
J. J. Berzelius collected the following data for three reactions: Reaction 1 – 11.56 grams of lead sulfide, PbS, were formed when 10.0 grams of lead reacted with 1.56 grams of sulfur Reaction 2 – 11.56 grams of lead sulfide were formed when 10.0 grams of lead reacted...

chemistry
thank you!

chemistry
When cane sugar reacts with oxygen in living systems, carbon dioxide and water are produced. What weight of carbon dioxide can be produced from the reaction of 15.0 grams of cane sugar with 15.0 grams of oxygen? (Hint: balance the equation) ___C12H22O11(s) + ___O2(g)  ...

chemistry
thank you!

chemistry
how many H2O molecules can be formed from 200 H2 molecules and 200 O2 molecules?

chemistry
Manganese(III) fluoride, MnF3, can be prepared by the following reaction: 2MnI2(s) + 13F2(g) → 2MnF3(s) + 4IF5(l) If the percentage yield of MnF3 is always approximately 51%, how many grams of MnF3 can be expected if 40.0 grams of each reactant is used in an experiment?

Chemistry
thanks!

Chemistry
Ethanol (C2H5OH) is synthesized for industrial use by the following reaction, carried out at very high pressure. C2H4(g) + H2O(g) → C2H5OH(l) What is the maximum amount, in kg, of ethanol that can be produced when 1.65 kg of ethylene (C2H4) and 0.0610 kg of steam are ...

Physical Chemistry
Thanks!!

Physical Chemistry
Integrate the expression β = 1/V (δV / δT) at constant pressure, assuming that β is independent of temperature. By doing so, obtain an expression for V as a function of T and β at constant P.

Chemistry
Calculate the enthalpy change when 45 g of ice at -40.0 oC is heated to completely melt to liquid water at 0.0oC. (The heat of fusion for water is 333 J/g.)

math
Write a recursive formula for the sequence: 12,-1,-14,-27...

7th grade math please help Ms. Sue ASAP
Plus she said "Good Morning Mucho Grande". Freaking..... That's wrong. Wuh...like...my brain. Oh god my brain hurts.

physics
The coefficients of friction between a 250 lb football sled and the grass are Mu(s)=0.6 and Mu(k)=0.4. For grass and cleats, Mu(s)=0.9. One 280 lb tryout exerts a horizontal push of 140 lb on the sled. What is the acceleration of the sled?

Vista High school
solve the following inequality. write your solutionin interval notation x^3-x<0

algebra
If you have 75 cents and you have 27 nickels and dimes how many nickels do you have.

Math
if a number is subtracted from the numerator of 3/5 and the same number is added to the denomminator of 3/5, the result is equivalent to 1. find the number

math
what times 60 equals 5076

math
rewrite the equation so that y is a function of x.then use the result to find y when x= -2,-1,0,1 -2y-3x-16=0

math
rewrite the equation so that y is a function of x.then use the result to find y when x= -2,-1,0,1 -6x-1=-4y+2

math
i meant 6x-2y=10

math
rewrite the equation so that y is a function of x.then use the result to find y when x= -2,-1,0,1 6x-2y=10

math
thanx for ur help

math
is that correct

math
4(1/2x+1/2)=2x+2 4/2x+4/2+2x+2 2x+2=2x+2 2x+2x=2+2 4x=4 x=1

math
4(1/2x+1/2)=2x+2

math
8x+6=3(4-x)

math
-6+5x=8x-9

English
Direct Object

Physics
A car traveling at 20 m/s applies the brakes. The coefficients of static and kinetic friction between the tires and the road are 0.80 and 0.50 respectively. (A) Determine the stopping distance if the car is able to stop as quickly as possible without skidding. (B) Determine ...

Math
What equivalent fraction would you use to subtract 1/3 from 5/9?

Chemistry
What is the temperature of 0.45mol of gas at a pressure of 1.0at and a volume of 10.1L ? if anyone can tell me what i need to do to solve this problem it would be helpful

physics
The radius of a merry-go-round is 7 meters, and it takes 12 seconds to make a complete revolution. What is the speed of an atom on the outer rim?

Math
How do you solve a(x+1)= b solving for x

Math
How do you solve a(x+1)= b solving for x

biology
What is meant by the statement, "Living things do not exist in isolation"?

Chemistry
If your body develops a charge of -17 (microcoulombs), how many excess electrons has it acquired, and what is their collective mass?

Chemistry
It's 50mg. I really don't understand how to do this.

math
what is the gross profit percent on a item bought for 3.50 at wholesale price and then sold at 5.00 for retail price

chemistry
1002

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