# Posts by chloe

Total # Posts: 575

Mathematics
I've just found that integration formula (which I'd forgotten about). No wonder I kept getting stuck! Thank you.

Mathematics
Find, using substitution, the integral of: e^x /sqrt[e^(2x) -1] dx

Math
x-2 ≥ 3 (+2 to each side) x ≥ 5 since p = x-2, p will always be positive (lowest value of x is 5, which would make p = 5-2 = 3, i.e. positive)

Mathematics
Don't worry - I've figured it out.

Mathematics
Use substitution to solve: sec^2x/(tan^2x -1) dx What substitution should I use (what should I let 'u' equal)? I've tried using substitutions for tan or sec, i.e. tan^2x +1 = sec^2x , but I can't get the answer.

Math
0.64, 2.50 (π-0.64) I'm not sure what is meant by part (b), but in the given domain, the only two answers are 0.64 and 2.50 (2 decimal places)

Math
1 batch = 2.5 cups flour 0.75 batch = ? cups flour To get to 0.75 batch from 1 batch, we multiply by 0.75. We must therefore do the same to the right-hand side. As Ms. Sue has said, the answer will be 2.5 x 0.75 = 1 7/8 cups

Algebra
Jay weighs 20 pounds more than Dan whose weight is twice what Kirsten's is. Their total weight is 320 pounds. How much does Kirsten weigh?

Geography
In which countries are the borno people found? What challenges might this create? Could there be any advantages to these circumstances?

Geometry
a flag pole is 25 ft high. your line of sight is 5 ft from the ground. the angle of elevation is 23 degrees, how far away from the base of the flag pole are you?

Precal
How do i prove that left side equals right? Cot(A+B)=cotAcotB-1/(cotA + cotB)

Science
PEPE and j are both right

MATH!
An experiment consists of rolling a weighted die. The probability of rolling each number is: Pr[1]=0.05, Pr[2]=0.1, Pr[3]=0.25, Pr[4]=0.25, Pr[5]=0.2, and Pr[6]=0.15. On the first roll, you record if the number is Small (1,2) or Large (3,4,5,6). If the first number is Small, ...

Math
A new law requires that 15 of an individual’s income be invested in the stock market. Your accounts show that you need to put \$435 in the stock market this year. How much did you earn this year? \$5,040 \$350 \$504 \$3,500 Refreshing this question, I got \$3,500, but, I don&#...

Bad typo, 11.76. Okay, I got it right. Thank you.

Can you check these, too? A new law requires that 15 of an individual’s income be invested in the stock market. Your accounts show that you need to put \$435 in the stock market this year. How much did you earn this year? \$5,040 \$350 \$504 \$3,500 *** On a factory floor, 20 ...

Write the fraction as a percent. If necessary, round to the nearest tenth of a percent. 6/15 a. 40.0% *** b. 37.5% c. 33.3% d. 46.7% Write the fraction as a percent. If necessary, round to the nearest tenth of a percent. 6 4/5 a. 68% b. 6.8% c. 6.4% d. 680% *** Write the ...

Math, all correct?
Oops! Write the fraction as a percent. If necessary, round to the nearest tenth of a percent. 6 4/5 a. 68% b. 6.8% c. 6.4% d. 680% ***

Math, all correct?
Write the fraction as a percent. If necessary, round to the nearest tenth of a percent. 6/15 a. 40.0% *** b. 37.5% c. 33.3% d. 46.7% Write the fraction as a percent. If necessary, round to the nearest tenth of a percent. 6 4/5 a. 68% b. 6.8% c. 6.4% Write the percent as a ...

Science
Why is the Grand Canyon a natural physical system

History
i know i'm a year late lol but what was the answer to this question? i can't find it anywhere.

Algebra
Can you please tell me how to do this question: Translate the phrase "8 less than the quantity 17 times a number, n.

Math
1)Carson lost 5 pounds in one week. What property is used in this situation? Why? 2)Frankie wanted to buy a new hat for \$14, but left the store without buying anything. What property is used in this situation? Why?

math
63

math
2. Manufacturer A produces hammers that are normally distributed with a mean weight of 4.6 lb and a standard deviation of 0.8 lb. Manufacturer B produces hammers that are normally distributed with a mean weight of 6.3 lb and a standard deviation of 1.4 lb. (a) What percentage ...

1- one serious problem caused by growing population is________? A. a higher death rate B. not enough available jobs. C. too much energy production.***** D. fewer medical advancements. 2- Large numbers of people have moved from rural areas to urban areas because the want ...

English - The Red Badge of Courage
thanks honors english 9a for my 100. i used the honors answers and they were all correct.

history
its b

english
i just took this test and got a 100. the answers are: 1. A 2. C 3. B

Algebra
110.00 + 125.00 + 32.00 =267.00

Algebra
A cash drawer has \$267.00 total. There are no bills larger than a 10. There are 11 tens and 7 more 1s than 5s. How many of each bill is there?

Algebra
Alexis paid \$22,900 as a down payment for her new home. If the down payment was 20% of the total price of the house, what was the total price of the house?

maths
Yes 6 more present

maths
There are 28 in our class. One day there were 6 times as many present as there were absent. How many were present? How many were absent?

precalc
write an equation to match each description. 1) a snowball is 8 cm across and melting so that its diameter is decreasing at a steady rate of 0.2 cm/min. write an equation for d(t), the length of the snowball's diameter at time t. answer: d(t)=8-0.2t 2) horizontal line ...

calc

calc
rewrite into slope intercept form. 1) 3x-2y=7 answer: y=3/2x-7/2 2) 8x=y-1/2 answer: y=16x+1 3) 4x+2/3y=8 answer: y=-6x-12 are these correct?

Chemistry
Use the data in the table to determine how long it will take for half of the original amount of SO2Cl2 to decompose at the average reaction rate. Experimental Data for SO2Cl2(g) → SO2(g) + Cl2(g) Time (min) [SO2Cl2](M) [SO2](M) [Cl2](M) 0.0 1.00 0.00 0.00 100.0 0.87 0.13...

chemistry
suppose that a large volume of 3% hydrogen peroxide decomposes to produce 12mL of oxygen gas in 100 s at 298 K. Estimate how much oxygen gas would be produced by and identical solution in 100s at 308 K hi can you please help me set up this problem, then I can do the math, I ...

Chemistry
I really need help with this I am really confused with the law, I have looked at multiple examples and I am still so confused, I know you can't give me the answer, but is there anyway you could please take me through this question step by step? Use Hess's law and ...

Math
Profit from a car boot sale- Shared 5:2 Sita. Rhys Sita gets £30 How much does Rhys get? PLEASE SOMEBODY HELP ME WITH THIS QUESTION!😫

Math
Sorry, yes I forgot the decimal in number 1. On number 2, on my paper is says that 1 meter equals about 3 feet so I just multiplied 2.8 by 3 and got 8.4. On number 3, would that now be correct because I have 2 correct? On number 4, we had to estimate and not use a calculator ...

Math
Can someone please check my answers? A yard has a square gate that has an area of 8 square meters. 1. What is the height of the gate in meters? Answer: 28 meters 2.How many feet would that be? Answer: 8.4 feet 3. If each side was 1 foot longer, what would be the area of the ...

geometry
question is: find the coordinates of midpoint P of line BC. Calculate lengths of AP, BP, CP. P is ? (midpoint of BC which bisects <A(0,0), B(0, 2k), C(2h,0). Thank you.

geometry
Henry -- on 1-24-14 you answered the question of the trangle ABC with midpoint of P. She didn't ask for P. What would it be?

geometry
I need help with following problem. I have (2||lines (AB and CD). A line intercepts which I called AE. (<A is 32 degrees).Middle of AE I put an (F) on top <)on line CD and (X is bottom <)of line CD. I need to find x. Help is appreciated.

geometry
Complete the flow proof for a Hypotenuse-Angle Theorem. Given AC congruent DF, <C congruent <F. <B and <E are right angles. Prove triangle ABC congruent triangle DEF. Thanks for tutors.

geometry
given <1= (and curved on top of = sign), proof that m<1 = m<5. statement reason 1. <1=(with line above<2 given 2. <2 = (with line above = sign)<5 symmetry of property of equality 3. statement blank reason transitive prop. of angle congruence (was given) 4....

Social Studies south asia
why was the migration of the aryans to india significant?

Math
24/4 48/4 96/4 192/4

Social Studies
its c- both embraced the idea of religious tolerance

Social Studies
What characteristic did the Mauryan and Mughal empires share? a.Both helped spread Buddhism. b.Both helped spread Islam. c.Both embraced the idea of religious tolerance. d.Both were begun by Aryan people I think either a or d Help?

L.o
Since social media is an ongoing trend we can use it to address human rights violations of xenephobia?

science
if the alleles are Bb then it would be tall right ( B is tall little b is short.)

science
Which explains how the greenhouse effect and greenhouse gases can affect global temperatures? A. The more greenhouse gases that are in the atmosphere, the more heat will be trapped, thereby increasing global temperatures. B. The more greenhouse gases that are in the atmosphere...

Math (Asap)
tia, you are correct. ( sry ik this is late )

math
what is 3 thousandths less than 7.995

Physics
You (m=75.0 kg) are floating outside your space station, and- oh no- a siren sounds, and the doors start to close! At the instant the siren sounds, you are exactly 10.0 m from the station doors and floating away from the space station at a speed of 1.00 m/s. The doors will ...

fykdks

Maths Mechanics
A plane flies due north at 300km/h but a crosswind blows north-west at 40km/h. Find the resultant velocity of the plane. Once I have drawn I diagram it is often okay, but it is the initial steps that I struggle with.

Math
Write an expression for the amount mia pays for gas

Science
thanks

Science
How would a scientist determine the absolute age of a fossil?

algebra
(r)17*4(t)=m

Chemistry
Given a 1.00 M solution of NaOH, describe how you would prepare 500 mL of 0.05 M NaOH solution. You have a 500 mL volumetric flask and a graduated cylinder. I have been trying to figure this question out for over an hour now. I cant seem to place the given numbers into any ...

Math - Word problem
He earned \$22.50 working on Saturday. Working 8am-2pm how much did he earn?

math

geography
How do i do geogrsphy bullseye co-ordinates homework

Inverse variation
-6(8k+4) = 21 + 3k

algebra
What is the answer for 4 (1-3n)-14=4 (2n+3)-9n

Economics
What happens to the cash flow statement for a company operating on a calendar year when a sale is made in December but the firm isn’t paid until the following January?

chemistry
22 54

What happens to companies with high operating leverage when the market declines? What happens when the market expands?

What happens to the cash flow statement for a company operating on a calendar year when a sale is made in December but the firm isn’t paid until the following January?

Finance
What happens to the cash flow statement for a company operating on a calendar year when a sale is made in December but the firm isn’t paid until the following January?

Finance
1. What happens to companies with high operating leverage when the market declines? What happens when the market expands?

physics
You drop a rock from rest out of a window on the top floor of a building, 50.0 m above the ground. When the rock has fallen 3.80 m, your friend throws a second rock straight down from the same window. You notice that both rocks reach the ground at the exact same time. What was...

Maths
What point is the apex of a bridge?

Grant stands 3 meters from the check out at the grocery store holding a 20N bag of potatoes for 10 minutes. How much work does he perform?

Grammar
Some shy people send unsigned cards

statistics
DO I NEED TO USE 2-TAILED OR 2-TAILED RESULTS? WHY? A researcher believed that 2 hours per week of intensive exercise would result in significant weight loss after 12 weeks on the schedule. Accordingly, he weighed a group of 50 subjects before and after the 12 week exercise ...

statistics
1. A class of 10 students all received a 90 on the final exam. What is the standard deviation?_________

geometry
Use the information below to find the missing measure such that . AB = 35, DE = 14, DF = 22, , AC = ?

Science
What form of pollution, if any, does each energy source cause? How does the economy influence energy source choices? How does location influence energy source choices?

Math
thanks!

Math
oh oh.....

Math
WHY?

Math
Evaluate the following expressions: a. 11^0 b. 11^2 / 11^2 c. are the answers to parts a and b the same? Explain why or why not?

Science
Thank you so much !! Now I understand! Thanks guys!

Science 1 More! Help
Identify any challenging conditions that you may encounter on your mission; this may include near vacuum conditions, extreme temperatures, and microgravity. Explain how you will overcome these challenges with the design of your spacecraft. I don't understand what does this...

Science
OK, Now I understand. thanks Ms. Sue & Damon for the help!

Science
Identify the benefits that your space mission might provide for modern society. Explore the possibility of connecting your space mission with satellites that are already gathering information as they orbit Earth. I don't understand what does this mean?

social studies

social studies
How did the Fugitive Slave Act and the Kansas-Nebraska Act further divide the North and South? What role did the concept of popular sovereignty play in these conflicts? Do you think there was any way to avoid the violence that came out of this era?

Math
list three different ways to write 5^11 as the product of two powers. Explain why all three of your expressions are equal to 5^11

Thanks

Help Is It Like This Which one the top or the bottom one!!! help check my answers
Help Is It Like This Which one the top or the bottom one!!! help check my answers

y = mx + b f(x) = 2m + b = 1 f(x) = 4m + b = 0 f(x) = 6m + b = -1 -1(2m + b = 1) 4m + b = 0 -2m -b = -1 4m + b = 0 2m = -1 m = -1/2 2(-1/2) + b = 1 -1 + b = 1 -1+ 1 + b = 1 + 1 b = 2 y = mx +b y = -1/2x + 2