Wednesday

July 23, 2014

July 23, 2014

Total # Posts: 37

**chemistry**

Earth's population is about 6.5 billion. Suppose that every person on Earth participates in a process of counting identical particles at the rate of four particles per second. How many years would it take to count 8.10 x 10^23 particles? Assume that there are 365 days in a...

**chemistry**

Earth's population is about 6.5 billion. Suppose that every person on Earth participates in a process of counting identical particles at the rate of four particles per second. How many years would it take to count 8.10 x 10^23 particles? Assume that there are 365 days in a...

**Math**

A bullet reaches a speed of 900 ft per sec in .2 sec. What is its acceleration.

**math**

Maria used 2 boxes of sugar cubes to make a building. it was too small so she wanted to increase the size 3 times. how many boxes of sugar cubes will she need?

**math**

smallest golf ball has a volume of 2.48 cubic inches. If the diameter is increased bt a factor of 1.1 what will the volume of the golf ball be?

**physics**

The terminal speed of a sky diver is 157 km/h in the spread-eagle position and 330 km/h in the nosedive position. Assuming that the diver's drag coefficient C does not change from one position to the other, find the ratio of the effective cross-sectional area A in the slow...

**8th grade math**

A model car is a 1/43 scale model of the original car. What is the scale factor needed to find the dimensions of the original car? model car=4.2" long, 1.3"tall, and 1.6" wide?

**math**

what % is 7.5 over 10? Is 7.5 over 100 7.5%?

**8th grade math**

2 rectangular tables are put together short ends together. 10 people can be seated around the tables. Add 2 tables again short ends together. How many people can be seated around the tables? Is there an equation you can use?

**math**

Let a be a positive number. If the product abc is negative, which statement must be true? A. bc is greater than 0 B. bc uis less than 0 C. ac is greater than 0 D. ac is less than 0 E. ab is greater than 0

**math**

Probability question: What is the difference in: P(red AND blue) and P(red THEN blue)? Are they independent or dependent. Nothing is said about replacing the first.

**math**

What is the rule for finding coordinates after a 90 degree rotation? after a 180 degree rotation? after a 270 degree rotation?

**chemistry1**

Here you go man bit.ly/o3fZeG

**math**

Mother duck collected 120 worms and divided them into 5 equal groups. She gave 8 of her worms to the first 3 ducklings. Then she took 3 of theirs and gave to the 4th duckling. How many did each end up with?

**8th grade math**

a basketball player scored 8 pts total during 1st and 2nd quarters of a game. During the 3rd quarter she scored 3 times as many pts as she did in the 4th quarter. Let P = the # of pts the player scored in the 4th quarter. Write and simplify an expression to represent the total...

**Math**

Independent or dependent? In a group of 20 people what is the probability the 2 people have the same birthday?

**math**

Find the # of possible choices for a 2 digit password that is greater than 19. Then find the # of possible choices for a 4 digit PIN # if the digits can not be repeated. HELP!

**finance**

A company’s perpetual preferred stock currently trades at $80 per share and pays a $6.00 annual dividend per share. If the company were to sell a new preferred issue, it would incur a flotation cost of 4%. What would the cost of that capital be?

**Math**

Jack is going to paint the ceiling and 4 walls of a room that is 10ft wide, 12 ft long, and 10 ft from floor to ceiling. How many sq ft will he paint?

**Math**

What is the next number in the sequence? 20.48, 12.8, 8, 5,________

**math**

a triangular prism has a volume of 896 cubic meters. If the prism is reduced by 1/4 of its original size what is the volume of the new prism?

**math**

a cone has a volume of 134.4 cubic centimeters. suppose you reduce the dimensions by 1/2 their current value. What's the value of the resulting change?

**math**

-3/4 + 11/15 X 3/22 not sure if I use order of operations on this kind of problem???

**math**

carter jogs around a rectangular park that is 3/5 mi long and .25mi wide. How many miles will he travel if he jogs 5 times around?

**math**

the sum of 3 consecutive integers is the same value as twice the greatest of the integers. Find the 3 integers.

**math**

-5/6 + 1 2/3 divided by -8/9 help!

**math**

for every left-handed person there are about 4 right-handed persons. If there are 30 studentsa in a class write and solve a proportion to predict the number of students who are right-handed.

**math **

45 mi/hr = ______ft/sec. Can you show me how to do this? Dimensional analysis?

**Math**

For every left handed person, there are 4 right handed persons. If there are 30 students in the class predict the number of students who are right handed.

**7th grade math**

An apple has 24 fewer calories than a banana. If 7 bananas have the same number of calories as 10 apples, how many calories are in a banana?

**math**

find 4 consecutive odd integers such that the sum of 7 times the smallest number and twice the largest is -91.

**7th grade math**

An apple has 24 fewer calories than a banana. If 7 bananas have the same number of calories as 10 bananas, how many calories in one banana?

**computer science**

#include<iostream> #include<iomanip> // manipulator using namespace std; void main () { bool number = true; // flag int Nchecks; // number of ticket float Obalance, // opening balance Cfee, // checking fee Cbalance; // closing balance const float Mfee=10, // monthl...

**math 5th grade**

2.000

**math 5th grade**

I dont get how to estimate by rounding each number to the nearest tenth 9.715 - 5.891 please show me how to solve this problem

**spell**

continued... What comes to mind when you think of wealth? An enormous mansion? Piles gold, silver, and diamond jewelry? Millions of dollars? Well in America’s case, wealth is in the rise of the U.S. dollar. -“After control of the oilfields the next most important rea...

**spell**

please help with essay am new and need advice Most people believe that America waged war against Iraq in March of 2003. But the truth, unannounced to many, is that America, along with Britain, had already planned to destroy Iraq twelve years before the war began. America and B...

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