Tuesday
June 28, 2016

Posts by Claire

Total # Posts: 628

math
The value of y is inversely proportional to the value of x. When y=42 x=6. What is the value of y when x=9
May 31, 2016

plz help math
The formula for the force between two objects is F=GMm/r^2 where M and m are the masses of the two objects, G is a constant, and r is the distance between them. Solve the formula for m .m=Fr^2/GM m=r^2/FGM m=GM/Fr^2 m=FGM/r^2
May 26, 2016

math
Elimination was used to solve a system of equations. One of the intermediate steps led to the equation 9x=27 . Which of the following systems could have led to this equation? 4x+3y=24 −5x−3y=3 7x−2y=15 x+y=6 9x+2y=21 −9x−2y=21 10x−y=15 x+y...
May 26, 2016

math
The diameter of a hydrogen atom is about 5×10^-11 meter. Suppose 8.4×10^8 hydrogen atoms were arranged side by side in a straight line. Multiply these numbers to find the length of this line of atoms. What is the length in scientific notation? 42×10^−3 ...
May 19, 2016

math
The volume of Jupiter is about 1.43*10^15 cubic kilometers. The volume of Earth is about 1.09*10^12 cubic kilometers. The number of Earths that can fit inside Jupiter can be found by dividing Jupiter's volume by Earth's volume. Find this quotient and express the answer...
May 19, 2016

math
Lisa and Katie are playing a card game, and a total of 900 points has been scored. Lisa scored 150 more points than Katie. If you let l= the number of points that Lisa scored, and k= the number of points that Katie scored, then the problem can be represented by the system: l+k...
May 18, 2016

History
Thank you so much!
May 18, 2016

History
1. What paints did the Mughals use to create their paintings? What pigments were used to create these paints? 2. How expensive were these pigments? I haven't been able to find much information regarding the paints or pigments used online, but I would be able to determine ...
May 18, 2016

word problem math
Keith has p pennies, n nickels, and d dimes in his pocket. The total number of coins is 9. The expression 0.01p+0.05n+0.10d0.01p+0.05n+0.10d represents the value of the coins, which is equal to $0.53. He has two fewer nickels than dimes. How many pennies does Keith have? Keith...
May 17, 2016

math
The area of a triangle varies jointly with the height of the triangle and the length of its base. The area of one triangle is 200 square centimeters when its height is 25 centimeters and its base length is 16 centimeters. What is the area of a triangle having a height of 20 ...
May 17, 2016

math
The volume of a pyramid varies jointly with the base area of the pyramid and its height. The volume of one pyramid is 24 cubic inches when its base area is 24 square inches and its height is 3 inches. What is the volume of a pyramid with a base area of 15 square inches and a ...
May 17, 2016

math
Video Villa rents classic video games for $2.50 for 5 days. New games rent for $3.50 for 5 days. If Rob rents c classic games and n new games, what is his cost per day, in dollars, for renting the games for 5 days? Select one: a. 0.50c+0.70n b. 0.50c+0.75n c. 0.25c+0.35n d. 0....
May 13, 2016

math
Arianna has a large piece of fabric that she wants to use to make some scarves. The number N of scarves she can make is inversely proportional to the area A of each scarf. If the area of each scarf is 3 square feet, then she can make 15 scarves. If the area of each scarf is 5 ...
May 12, 2016

math
Arianna has a large piece of fabric that she wants to use to make some scarves. The number N of scarves she can make is inversely proportional to the area A of each scarf. If the area of each scarf is 3 square feet, then she can make 15 scarves. If the area of each scarf is 5 ...
May 12, 2016

Calculus
Thank you
May 11, 2016

Calculus
The base of an isosceles triangle is 8 feet long. If the altitude is 6 feet long and is increasing 3 inches per minute, are what rate are the base angles changing?
May 11, 2016

math
The clock face in a famous clock tower has a radius of about 5 meters. What is the area of the clock face to the nearest square meter? Use 3.14 as an approximation for pi.
May 10, 2016

math
Which statement concerning the equation x^2+2=x is true? Its discriminant is 0 , so it has no solution. Its discriminant is 0 , so it has one real solution. Its discriminant is -7, so it has two complex solutions. Its discriminant is -7, so its solutions are negative.
May 9, 2016

math
A flying disc has a radius of 6 inches. What is the area of one side of the flying disc to the nearest square inch? Use 3.14 as an approximation for pi. A) 113 square inches B)452 square inches C)38 square inches D) 28 square inches
May 9, 2016

Calculus
A conical cistern is 10 ft. across the top and 12 ft. deep. If water is poured into the cistern at the rate of 1 cubic foot per second, how fast is the surface rising when the water is 8 ft. deep?
May 2, 2016

Trigonometry
At a point on the ground 125 ft from the base of a tower, the angle of elevation to the top of the tower has a degree measure of 38 degrees. How high is the tower
April 23, 2016

Chemistry
For the reaction H2(g) + I2(g) ⇀↽ 2 HI(g) at 425◦C, calculate [HI], given [H2] = [I2] = 0.000617 mol/L and K = 54.3.
April 23, 2016

math
Anthony has 7 bills. All the bills are tens or twenties. The bills Anthony has total $100 in value. How many of each hill does Anthony have? Pretty sure the solving method is solving systems of equations but you have to isolate the variables and stuff.. please help!!
April 19, 2016

math
Which statements are true for irrational numbers written in decimal form? A. Irrational numbers are nonterminating. B. Irrational numbers are repeating. C. Irrational numbers are nonrepeating. D. Irrational numbers are terminating.
April 19, 2016

adding integers
A stock lost 7 1/8 points on Monday and then another 1 7/8 points on Tuesday. On Wednesday, it gained 13 points. What was the net gain or loss of the stock for these three days? A) a loss of 22 points B) a gain of 4 points C) a gain of 18 1/4 points D) a gain of 7 3/4 points
April 13, 2016

Chemistry
Consider the following acid/base reaction CO3^2− + 2H^+ → H2O + CO2 that produces CO2 gas. 6 L of CO2 is collected at STP. What is the molarity of the HCl solution used in the reaction if 81 mL of HCl was needed?
April 12, 2016

Chemistry
You have a vinegar solution you believe to be 0.53 M. You are going to titrate 20.72 mL of it with a NaOH solution that you know to be 0.974 M. At what volume of added NaOH solution would you expect to see an end point?
April 12, 2016

Factor out the Greatest Common Factor (GCF)
Factor out the Greatest Common Factor (GCF): 45d^3-18d^2
April 11, 2016

Algebra 2
Carla’s kitchen floor is in the shape of a perfect square. Her copycat brother, Carl, wants to re-model his kitchen so that it will have the same surface area as his sister, but his kitchen will be rectangular. The length of his floor is half the length of his sister’...
March 15, 2016

Math
A flying disc has a radius of 7 inches. What is the area of one side of the flying disc to the nearest square inch? Use 3.14 as an approximation for pi.
February 18, 2016

Math
Which is the best approximation of the volume of a cylinder with a radius of 10 mm, and a height of 5 mm? Use 3.14 for pi.
February 2, 2016

math
A square is folded vertically twice and the resulting perimeter is 20 cm.What is the peremeter of the square?
January 26, 2016

Chemistry Chemical Reactions pls help <3
2AgNO3 + CaCl2 ---> Ca(NO3)2 + 2AgCl all of the substances involved in this reaction are soluble in water except AgCl which forms a solid at the bottom of the flask . Suppose we mix together a solution containing 12.6 g of AgNO3 and one containing 8.4 g of CaCl2 .What mass ...
January 13, 2016

Math
Dixon and his little sister Ariadne stand next to each other on the playground on a sunny afternoon. Their mother measures their shadows. Dixon's shadow is 18 feet long and Ariadne's shadow is 15 feet long. If Dixon is 6 feet tall, how tall is Ariadne?
January 4, 2016

Math
What is the smallest of 3 consecutive positive integers if the product of the smallest and largest is 21 more than 9 times the middle number? x(x+2)=21+9(x+1) I'm not sure if this is a good equation to solve it..?
January 3, 2016

science
Friends are better than school Or you can learn about taxes not science Remind me to skip science Can't understand school- no meaning Everyone hates school
December 7, 2015

Math
write the first 10 multiples of 3
December 3, 2015

math
There are some caps in a box. 1/6 of them are red, 1/3 of them are blue and 3/7 of the remainder are green. If there are 27 green caps, how many caps are there altogether? How should I solve this?
December 3, 2015

Social Studies
thank you!
December 2, 2015

Social Studies
compare and contrast the experience of the creeks and cherokees in Georgia following the war of 1812 { could you please help me with this)
December 2, 2015

Intro to Chemistry
Does the Periodic table have any kind of pattern for brittleness? If so, what is it? For example, the elements on the left are more brittle, while the ones on the right are less brittle.
November 18, 2015

Math
There are 18 silver cars, 13 red cars, and 11 brown cars in a parking lot. What fraction of the cars in the parking lot are not silver?
November 16, 2015

Pre-Calculus
Big Bob is trying to shape up for the summer. He begins on the first day of his exercise program with 3 sit ups. Each day he will do 4 more sit ups than the day before. On what day will Big Bob do 115 sit ups?
November 16, 2015

word problem math
Dixon and his little sister Ariadne stand next to each other on the playground on a sunny afternoon. Their mother measures their shadows. Dixon's shadow is 18 feet long and Ariadne's shadow is 15 feet long. If Dixon is 6 feet tall, how tall is Ariadne?
November 16, 2015

Math
In science class, Savannah measures the temperature of a liquid to be 50^@ Celsius. Her teacher wants her to convert the temperature to degrees Fahrenheit. What is the temperature of Savannah's liquid to the nearest degree Fahrenheit?
November 16, 2015

math
please help*
November 14, 2015

math
Why do you have to use estimation to find the number of triangles you need for the string? {could you please me I don't understand
November 14, 2015

Precalculus
Show the first three terms of each related sequence or series and solve each problem. 1) Jerry hopes to buy a camera which costs $680. He plans to save $5 more each month than in the month before, beginning with $5 this month. In how many months will he have saved enough? 2) A...
November 12, 2015

Math
Which of the following problems would NOT have a solution? Five pizzas are shared equally among four people, and you want to know how much each person gets. Ten pizzas are shared equally among five people, and you want to know how much each person gets. Zero pizzas are shared ...
November 10, 2015

Math
Which number is not equal to one of the following expressions? 2,500 x 10 250,000 -: 100 2,500 -: 10
November 10, 2015

math
962?
November 10, 2015

math
declan works 37 hours a weeks and earns 26 dollars an hour declan earns how much in a week
November 10, 2015

Math
Dawn raises money for her school in a jog-a-thon. She will get three dollars for every lap she completes. If it takes 4 laps to jog 1 mile, and Dawn jogs a total of 12 miles, how much money will Dawn raise for her school?
November 6, 2015

Math
On an average day, 38 customers buy a bag of grapes at Jerry's Market. There are an average of 47 grapes in each bag. Round to the nearest ten and then multiply to estimate the number of grapes Jerry's customers buy every day.
November 6, 2015

Math
On an average day, 34 customers buy a bag of grapes at Jerry's Market. There are an average of 47 grapes in each bag. Round to the nearest ten and then multiply to estimate the number of grapes Jerry's customers buy every day.
November 6, 2015

Math
secondary math 2
October 29, 2015

Math
yea
October 29, 2015

Math
no its a exponent x with exponent -b
October 29, 2015

Math
simplify each expression. Your answer should still be in exponential form and only have positive exponents. x^-b
October 29, 2015

Math
two boats leave the same port at the same time. one travels at a speed of 29 mph in the direction N 50 degrees E and the other travels at a speed of 35 mph in the direction S 70 degrees E. how far apart are the two boats after an hour.
October 28, 2015

11th grade math
Simplify each expression. Your answer should still be in exponential form. Make sure that you combine all numbers with the same base. y^a/y^b
October 28, 2015

11th grade math
y^a/y^b
October 28, 2015

math
Simplify each expression. Your answer should still be in exponential form. Make sure that you combine all numbers with the same base. y^a/y^b
October 28, 2015

math
thanks
October 28, 2015

math
please help
October 28, 2015

math
Simplify each expression. Your answer should still be in exponential form. Make sure that you combine all numbers with the same base.
October 28, 2015

math
r^5s^3/rs^2
October 28, 2015

math
Simplify each expression. Your answer should still be in exponential form. Make sure that you combine all numbers with the same base. \frac{r^{5}s^{3}}{rs^{2}}
October 28, 2015

Physics
I have a question about a vector addition problem using the polygon method. Vector 1 has a magnitude of .1 and theta of 30 degrees. Vector 2 has a magnitude of .2 and a theta of 90 degrees. Vector 3 has a magnitude of .3 and a theta of 225 degrees. I'm confused because if ...
September 29, 2015

Algebra
Simplified it's 5n-4
September 29, 2015

Math
I suppose for 6x200 it's like 6x2x100?
September 28, 2015

Physics
6. A car traveling 64 km/hr (40 mi/h) brakes suddenly to avoid a dog crossing the road. It accelerated at a rate of -1350 mi/h2. What was its speed after 0.5 min?
September 28, 2015

math
The hundredth and thousandth places.
September 28, 2015

Math
An auditorium contains 315 occupied seats and was 7/9 filled. How many empty seats were there?
September 28, 2015

Chemistry
What happens when you mix ammonium chloride and sodium nitrate? I don't need any equations, just what would you see when you mix them together Thanks~
September 22, 2015

math
Well the smallest prime is 2, so now you've got 0.2 something If the hundredth digit is twice the tenth, then it should be 4. But the part about the GCF being 18 and 27 I don't get
September 22, 2015

Algebra
6.24 seconds. 15.6/2.5 = 6.24
September 22, 2015

Algebra
Um, I suppose it's (-0.7)-(-2.5)
September 22, 2015

Algebra
Height of K2 - 11,194 = height of Mt. Kenya. You can't solve this equation, there's not enough information given.
September 22, 2015

unisa
for anyone who wants to answer this. The person is probably talking about this articletheguardian(dot)com/world/2014/apr/07/india-elections-nehru-gandhi-dynasty
September 22, 2015

Physics: Please help!
I can't figure this out at all...Can someone please explain it to me? It has been claimed that an insect is the best jumper in the animal kingdom. This insect can accelerate at 3950 m/s2 over a distance of 2.3 mm as it straightens its legs. (a) Assuming a uniform ...
September 21, 2015

Physics
I cannot figure out this question, and it would be greatly appreciated if someone could help me out! :) It has been claimed that an insect is the best jumper in the animal kingdom. This insect can accelerate at 3950 m/s2 over a distance of 2.3 mm as it straightens its legs. (a...
September 21, 2015

social studies
Mesoamerica
September 21, 2015

social study
that's called commerce
September 21, 2015

Math
Can some please explain what I have to do to get the answer? An airplane passes directly over Seneca High School. A student at Cherokee High School, which is 4.3 miles away, finds the angle of elevation of the plane to be 19°. Find the altitude of the plane.
July 16, 2015

Geometry
Angles A and C are complementary, and angles C and B are supplementary. If Angle A = 45 degrees, what is the measure of angle B?
July 16, 2015

Geometry
YW bisects angle XYZ. The measure of angle XYZ = 80 degrees. Find the measure of angle XYW
July 16, 2015

math
Yeah thank you Pete...
April 30, 2015

math
I think it's D. Please answer still. Thanks
April 30, 2015

math
What will the graph look like for a system of equations that has no solutions? A. The lines will be perpendicular. B. The lines cross at one point. C. Both equations will form the same line. D. The lines will be parallel. Is the answer B?? Thank you
April 30, 2015

language arts
page 1738!
April 28, 2015

chemistry
25.0 ml of 15% NH4NO3 solution is diluted to 300.0 ml. What is the concentration of the diluted solution? .15% x 25=3.75ml Do I divide by 300ml and that's my answer?
April 16, 2015

math
A bus left the bus station with 90% of the seats full. After six stops, a total of 26 passengers got of the bus and 4 passengers boarded the bus. Now, 35% of the seats are full, How many seats are there on the bus ? 35%*2= 70%= 2*22=44 seats.
March 17, 2015

Chemistry
how much vinegar produces 0.240 moles of acetic acid?
March 10, 2015

math
An antique clock takes 5.5 seconds to chime at 3 o'clock. How long does it take to chime at 9 o'clock ? 5.5/2= 2.75x8=22seconds
March 4, 2015

Language arts
yeah the answer is c :)
February 27, 2015

Science
California's volcanoes formed as the result of what type of plate boundary?
February 6, 2015

History help?
1. is D. 2. C, well thats where it was started in NY, but it could be B because it had spread out to let people know about rights that women should have. I'll say B ?
January 21, 2015

History help?
1.Southern states began to leave the Union not long after this event: a.Lincoln read and established the Emancipation Proclamation b.the fighting at Fort Sumter in South Carolina c.The Battle of Gettysburg was lost by the South d.the election of Abraham Lincoln 1. A or B? I ...
January 21, 2015

Math
thanks!
January 6, 2015

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