# 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?