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Posts by britt

Total # Posts: 181

math
A video store charges $3.50 to rent a DVD. Every fourth DVD that a customer rents is free. Brooke paid a total of $252 last year for renting DVDs. How many free DVDs did she receive?

math
the symbols that stands for amounts are called what? numbers, digits, numerals, shapes

Math
The symbols that stand for amounts are called? numbers, digits, numerals or shapes? A diagram with mammals at the top, then monkeys, dogs, cows, elephants, and cats is a (an) graph hierarchical classification flow chart divergence classification

physics
A neutron star has 10 km radius and rotation period 1.2 s What's the centripetal acceleration on its surface at the equator?

science
The small intestine is specialized for absorption by the huge number of villi that line the intestinal wall. Villi have cells that produce intestinal enzymes which complete the digestion of peptides and sugars.

science
what is a polony sandwich?

Math
A ladder is leaning up against a wall. The ladder touched the wall 5ft up. The ladder is 6ft Long. A) Draw a picture and label all of the values B) What is the angle that is made between the ladder and the ground? C) How far away from the wall is the ladder where it touches ...

trig
Angle θ lies in the second quadrant, and sin θ = 3/5. Find cos θ and tan θ.

math
The perimeter of a rectangle is given by P = 2W + 2L where W is the width and L is the length. The length of a rectangle is 3 more than twice its width. The perimeter of the rectangle is 66 meters. What is the length and width of the rectangle?

Math HELP!
thank u so much Ms.jordan

Math HELP!
what is 4x3x2x1=? what is 9,348+102+5,802+1,933=?HELP!!!!!!!!!!

micro economics
When demand decreases and the demand curve shifts to the left, equilibrium price __________ and equilibrium quantity __________ . A. increases; increases B. increases; decreases C. decreases; increases D. decreases; decreases

algebra
Solve f(x)=3x^2+8x-6. Let f(x)=f(7a)

pharmaceutical calculations
Chlopheniramine 100milliliters Lidocaine 2ounces Banana flavoring 1teaspoon

english
which is the best thesis A. Because air pollution is of serious concern to people in the world today, many countries have implemented a variety of plans to begin solving the problem. B. So far, research suggests that zero-emissions vehicles are one solution to the problem of ...

english
which is a better thesis A. Because it has become outdated, the electoral college should be replaced by a system that allows the US president to be elected by direct popular vote. B. Rather than voting for a presidential candidate, voters in a US presidential election merely ...

chemistry
vgrfazbfa

Math
81

Health Part 2
It's D

English
Book: Lord of the Flies What is ironic about the naval officer who arrives to "rescue" the boys? How does Ralph feel about returning to the safety of civilization? Why does he weep—is it relief, or something else?

Physics
The piolt of an airplane wishes to fly due north, but there is a 65-km/h wind blowing toward the east. in what direction should the pilot head her plane if its speed relative to the air is 340 km/h?

Math
600

Physics
A 920kg car is 65m from a concrete barrier, travelling at 125km/h, when the driver notices and slams on the breaks. The frictional force acting on the car is 8500 N. Is ther driver able to stop the car before hitting the barrier.

chemistry
A sample of barium contains 3.20g of barium. How many atoms of barium are contained in the sample?

Statistics Problems
i) 0.7937 ii) .8

Calculus
State the domain and range for each: f(x) = 4x + 1 and g(x) = x^2 f(x) = sin x and g(x) = x^2 - x + 1 f(x) = 10^x and g(x) = log x

Calculus
Math questions, please help me? :(? Find the composite functions f o g and g o f for the given functions. f(x) = 10^x and g(x) = log x State the domain and range for each: f(x) = 4x + 1 and g(x) = x^2 f(x) = sin x and g(x) = x^2 - x + 1 f(x) = 10^x and g(x) = log x If f = {(-2...

Chemistry
PV=nRT (1)(x)= (.250)(0.0821)(523) 1x= 10.73

calculus
F(x)= log_3 (1-5x) F'(x)=

world history
how did spain acquire her american empire?

Algebra 1
SO HOW DO YOU GET 1/2 FORM THAT?

Algebra 1
the quadratic formula is -b+-radical b^2-4ac/a

Algebra 1
So technically there would be no solution right?

Algebra 1
how do you get 1/2 as a solution?

Algebra 1
because the answer has got to be a real number which is not a negative number

Algebra 1
solve: log8(w-6)=2-log8(w+15) note: the 8 is to be little at the bottom right corner of log

Test prep
solve: log8(w-6)=2-log8(w+15) note: the 8 is to be little at the bottom right corner of log

Algebra
Write expression as the logarithm of a single expression or number: ln(3x+2)+ln(x+4)

Math prep
1). Using the function: y=y0,(.90)^t-1. In this equation y0 is the amount of initial dose and y is the amount of medication still available t hours after drug is administered. Suppose 20mg of the drug is administered. How long will it take for this initial dose to reach 50mg? ...

math
the y0 should actually be y with a little 0 at the bottom right corner and as i said from the equation it is the amount of initial dose. Plus the initial dose is 200mg not 20 sorry. so how long would it take to get from 200mg to 50mg?

math
1). Using the function: y=y0,(.90)^t-1. In this equation y0 is the amount of initial dose and y is the amount of medication still available t hours after drug is administered. Suppose 20mg of the drug is administered. How long will it take for this initial dose to reach 50mg? ...

physics
A hypodermic needle is 2.98 cm in length and 0.28 mm in diameter. What pressure difference between the input and output of the needle is required so that the flow rate of water through it will be 1 g/s?

Fifth grade English
What is the plural form of staff? Not sure if it should be staff or staffs. Thank you for helping. Britt

5th grade English
What is the simple predicate in this sentence? The lion is nicknamed the King of the Beasts. Would it be "is" or would it be "is nicknamed"? Thanks!

9th grade algebra/Ms Sue
.78 to nearest hundred

algebra
-5/8- 3/4=

chemistry
the rusting of iron is represented by the eqquation 4Fe + 3O2 --> 2Fe2O3 if you have a 1.25-mol sample of iron, how many moles of Fe2O3 can be made?

history
How did George Kennan’s containment doctrine change during the Truman, Eisenhower and Kennedy administrations? Which president was the most successful in containing Communism? HELP!!!

chemistry
The electron pairs in a molecule of NH3 form a tetrahedron. Why does the NH3 molecule have a trigonal pyramidal shape rather than a tetrahedral shape? Explain your answer. PLEASE HELP

Calculus
Total cost to manufacture q microwaves a day is C(q)=3q^2+q+48.What level of product gives the least average cost and Can a microwaves be produces for less than $30?

history
How was the civil rights movement of the 1950s and 1960s a continuation of the Reconstruction-era struggle for blacks to achieve equality?

history
How was the civil rights movement of the 1950s and 1960s a continuation of the Reconstruction-era struggle for blacks to achieve equality?

chemistry
Based on electronegativity values, which bond has the highest degree of ionic character: H--S Si--Cl Cs--Br?

science
How do you figure out if acceleration occurred. What would the equations look like?

science
you are riding your bike at 9km/h. ten minutes later; your speed is 6km/hr.

science
91km/h

science
What is the average speed of a car that travels 320km in 3.5 hours?

chemistry
Ammonia, NH3, can be made by reacting nitrogen with hydrogen. N2 + 3H2 = 2NH3 How many moles of NH3 can be made if 7.5 moles of H2 react with enough N2? Please help!

University Physics
Building A and Building B are 30m away from each other, on the 4th floor; 35m high, someone has set up a slingshot from the window on the 4th floor of building A and is trying to sling a balloon into the window directly across from them in building B. the balloon weights 1 kg...

math
0.094

history
french and indian war

history
Discuss the importance of landscape in crafting battle strategy for both the French and the English. Help please! talking in general.. no one specific battle

calculus
Solve for x: 2x=ex+1

calculus
Solve the equation 14=65(19)x for x using logs.

trigonometry
Use De Moivre’s Theorem to simplify each expression. Write the answer in the form a + bi. {1 - i(/3)}^4

accounting
Christy Burch and Myung Lim, partners, compared their current income statement with their income statement of a year ago. They noted that sales were 12.0% higher than a year ago. They also noted that the total expenses were 20.0% higher than a year ago. What type of analysis ...

trigonometry
Find a complex number a + bi such that a^2 + b^2 is irrational. Justify and explain your reasoning.

trigonometry
Find a complex number a + bi such that a^2 + b^2 is irrational. Justify and explain your reasoning.

english
Does anybody have the answers to the test?

english
The Awakening, by Kate Choplin, sorry

trigonometry
okay!

trigonometry
ohh, i didn't realize! thankyou :)

trigonometry
{1/(sec x - 1)} - {1/(sec x +1)} = 2 cot^2 x solve using identities?

trigonometry
Use identities to simplify each expression. 1) (sin2t) (cos5t) + (cos2t) (sin5t) 2) {1/(sec x - 1)} - {1/(sec x +1)} = 2 cot^2 x

trigonometry
1) (sin2t) (cos5t) + (cos2t) (sin5t) 2) {1/(sec x - 1)} - {1/(sec x +1)} = 2 cot^2 x

trigonometry
A sheet metal worker constructed a triangular metal flashing with sides of 6 ft., 5 ft., and 3 ft. If he charges $2 per square foot for this type of work, then what should he charge? Do not use Heron’s formula. Justify and explain your reasoning.

math
I have spent hours trying to do these, help! Use the given information to solve the triangle. 1) C = 145 degrees, b = 4, c = 14. 2) A = 150 degrees, C = 20 degrees, a = 200.

trigonometry
Use the given information to solve the triangle. 1) C = 145 degrees, b = 4, c = 14. 2) A = 150 degrees, C = 20 degrees, a = 200.

Chemistry
How did you get the answer .117 ?

English
Which of the following are characteristics of allegory? A. Immitation B. Humor C. Didacticism D. Spiral Plot C. Music

math
what is the sum of radical x- 1 and (x-1)^2 when x= 5?

calculus
The volume V of a cylinder is computed using the values 9.8 \text{m} for the diameter and 3 \text{m} for the height. Use the linear approximation to estimate the maximum error in V if each of these values has a possible error of at most 8 \%.

Precalculus
Can an even degree polynominal have exactly one x intercept?

Math
Find cos(theta) if (-15, 8) is a point of the terminal side of theta.

physical science
can water dissolve polar molecules or nonpolar molecules

Math
Rectangle with a diagonal length oh 26m and height of 10m

Math
What is the area of a square with a diagonal length of 15 times the square root of 2?

algebra
x squared-4x-5 your factoring each expression.

Math
Find (f-g)(-3) when f(x) = x + 3 and g(x) = sq. rt. x - 7

Science
Identify two different types of green power. Identify a disadvantage and advantage of each type. Thanks Britt

chem
I did this same problem on Sapling Learning and I can confirm Anonymous's answer is correct. Now, if only someone can explain why it makes sense. Is it just comparing pKa values?

psychology
Explain how influences from each of the 4 levels of the ecological perspective have affected your development thus far (8 pts). List the level and then write a few sentences explaining how it has affected you.

Psych
I've seen adolescents with such a strong sense of their own importance, especially in sports, that they don't appear to care about anyone or anything else. What do you think?

Social Studies
The First Amendment does not guarantee absolute freedoms or rights Why?

calculus
it's x=pi.

calculus
what is the slope of the curve y=tan(6x^2) when x=ð

English
THe meaning would probably be to give a chance. To give it a try! I am going to go too a english club. Hope I helped!

Chemistry
If the pressure on a 1.04 L sample of gas is doubled at the constant temperature, what will be the new volume of the gas?

Chemistry
668= 26.7(2.42)(X-32.5) ?

Physics
A cheetah is hunting. Its prey runs for 2.56 s at a constant velocity of +10.02 m/s. Starting from rest, what constant acceleration must the cheetah maintain in order to run the same distance as its prey runs in the same time?

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