Friday

September 19, 2014

September 19, 2014

Total # Posts: 568

**math**

The circumference of a circle = 20 pi. If the circle is cut in half, what is the area of one of the resultant halves ? please answer and explain
*January 12, 2014*

**math**

If the length of a rectangle is increased by 25%, by what percentage should the width of the rectangle be decreased to maintain a constant area ? a. 5% b. 10% c. 15% d. 20% e. 25% please answer and explain
*January 12, 2014*

**math **

If the area of a circle is increased by a factor of 9, the circumference of that circle will be increased by what factor? a. 3 b. 6 c. 9 d. 18 e. 81 please answer and explain
*January 12, 2014*

**math**

C= 2 pi r = 2 pi (3r) = 3 ( 2 pi r ) so C = 3 c why C = 3 c I don't understand
*January 11, 2014*

**math**

If the area of a circle increases by a factor of 9, by what factor does its circumference increase ?
*January 11, 2014*

**math**

If the radius of a circle is doubled, by what factor does the circumference increase?
*January 10, 2014*

**math**

If the side of a square increases by a factor of 3, by what factor does the area of the square increase?
*January 10, 2014*

**MATH**

If a square of side length x is cut in half, what is the perimeter of one of the resultant halves?
*January 10, 2014*

**math**

so, I just write down this and say the answer is make sense
*January 6, 2014*

**math**

I don't understand the sentence 10% of $500 = $50 10% of 300 = $30 6% is a little more than half of 10%,what is half of 10% of 500 5% of 500 = $25 Add this with 10% of 30 = $3 ( Since 8% is close to 10%. Does your answer make sense----What that mean? )
*January 6, 2014*

**math**

Check ..... 1. Find 10% of $500 and 10% of $300.Since 6% is a little more than half of 10%, what is half of 10% of 500? Add this with 10% of 30, since 8% is close to 10%. Does you answer make sense ?
*January 6, 2014*

**math**

I came across with this last problem that I don't get on this sheet. Dan's uncle ask him to come work for him at his men's clothing store. He will pay him 5% on his first $1000 in sales and 8% on sales above $100. How much will Dan earn if he sells $2500 in ...
*January 6, 2014*

**math**

I got no
*January 6, 2014*

**math**

Find 10% of $500 and 10% of $300. Since 6% is a little more than half of 10%, what is half of 10% of 500? Add this with 10% of 30, since 8% is close to 10%.Does your answer make sense. Please show work so i can understand
*January 6, 2014*

**math**

Thank you
*January 6, 2014*

**math**

30+24= $54
*January 6, 2014*

**math**

A store pays a 6% commission on the first $500 in sales and 8% on sales over $500. Find the commission on an $800 sale. I just need the commission on the $800 sale, cause i finish the other questions in this problem. Please explain how to do it.
*January 6, 2014*

**math**

so, doubling the lenghts = 2x+4 14+14+5+5=38 answer d
*January 5, 2014*

**math**

The perimeter of the rectangle is 24 cm, the long side is x + 2, the width side is x , if a new rectangle is created by doubling the lengths of the original rectangle's longest sides, what would the new rectangle's perimeter be ? a. 17 cm^2 b. 24 cm^2 c. 31 cm^2 d. 38 ...
*January 5, 2014*

**math**

A square measures 12 cm x 12 cm and is divided into four equal squares. If equal circles are inscribed within each of the four squares, what is the circumference of each circle ?
*January 5, 2014*

**math**

A square measures 12 cm x 12 cm and is divided into four equal squares. If equal circles are incribed within each of the four squares, what is the circumference of each circle ? a. 2 pi cm b. 4 pi cm c. 6 pi cm d. 8 pi cm e. 12 pi cm please answer and explain
*January 5, 2014*

**math**

d. 6 1/4 pi cm^2
*January 5, 2014*

**math**

A circle has an area of 25 pi cm^2.If a circle is drawn within that circle with a diameter equal to the radius of the first circle, what is the area of the second circle? a. 2 1/2 pi cm^2 b. 4 1/4 pi cm^2 c. 5 1/4 pi cm^2 d. 6 1/4 pi cm^2 e. 7 1/2 pi cm^2 please answer and ...
*January 5, 2014*

**math**

A triangle has an area of 15 cm^2 and a base of 5 cm. If a circle is drawn with a diameter equal to the length of the triangle's height, what is the area of the circle ? a. 6 pi cm^2 b. 9 pi cm^2 c. 12 pi cm^2 d. 18 pi cm^2 e. 36 pi cm^2 please answer and explain
*January 5, 2014*

**math**

A square has a side of length 2 inches. How long is a side on a square that has twice the area? please answer and explain
*January 5, 2014*

**math**

my answer is 162 pi too, but the answer is a. 18 pi b. 36 pi c. 36 pi^2 d. 324 pi e. 324 pi^2
*January 5, 2014*

**math**

The area of circle c is 81 pi . if the radius of the circle is doubled, what is the circumference of the new circle ? please answer and explain
*January 5, 2014*

**math**

If 70% of the students at a school sign up for exercise Day, a sporting goods store will give the school 10% off on all purchases.There are 378 students in the school. What is the least number of students who must sign up for the school to make its goal?
*January 5, 2014*

**math**

1. What is the range on the number line for all values of x^3 if x < -2 ? 2. What is the range on the number line for all values of x^3 if -2 < x < 2 ?
*December 26, 2013*

**math**

What is the range on the number line for all values of x if -2 < x < 2 ?
*December 26, 2013*

**math**

What is the range on the number line for all values of x/2 if x < -4 ?
*December 26, 2013*

**math**

If -2 < x < 2, what is the range for - x/2 ? -2 / -2 = 1 x / - 2 = - x/2 2 / -2 = -1 1 > - x/2 > -1 Am I correct ?
*December 22, 2013*

**math**

how above this If 4 < x <14, what is the range for x-4? 4-4= 0 x-4= x-4 14-4= 10 so, 0 < x-4 < 10 Am I correct ?
*December 22, 2013*

**math**

a. -6 < 2x < 0 b. -6 > 2x > 0 c. -6 <2x < 2 d. -6 > 2x >2 e. 6 > 2x > 0 please step by step explain
*December 22, 2013*

**math**

If -3 < x < 0, what is the range for 2x ?
*December 22, 2013*

**math**

The number of square units in the area of circle P is equal to the number of units in the circumference of circle P. Assuming that the diameter of the circle must be greater than P, what is the radius of circle P ? a. 2 b. 2 pi c. 4 d. 4 pi e. cannot be determined from the ...
*December 8, 2013*

**math**

A circle of area 25 pi is graphed in the coordinate plane. If its center has coordinates (8,0), which of the following points MUST lie on the circumference of the circle? a. (0,0) b. (0,5) c. (16,0) d. (3,0) e. (0,8) please answer and explain
*December 8, 2013*

**Macroeconomics**

Where are we in the business cycle? What is the real GDP today? What is the largest component of GDP? What is the smallest component of GDP? What is the fastest growing component of GDP and why? What components of GDP were involved in the change from last month to this month...
*December 1, 2013*

**Physics, Elena Please Help If u can.**

That defeats the whole purpose of e-learning.
*November 18, 2013*

**art**

You are a museum director/gallery executive director - a person of responsibility in the arts in a place where people go to deliberately look at art. This work is not being thrust on an unsuspecting public. A local woman of wealth, married to a man with political clout, visits...
*November 8, 2013*

**Computer Science**

Give a modular exponentiation algorithm that examines the bits of b from right to left instead of left to right.
*October 17, 2013*

**Physics**

A bus travels 290 km south along a straight path with an average velocity of 81 km/h to the south. The bus stops for 25 min, then it travels 210 km south with an average velocity of 80 km/h to the south. How Long does it lasts ? Answer in units of h . What is the average ...
*September 30, 2013*

**maths**

0.9051
*September 20, 2013*

**College Accounting**

A light truck is purchased on January 1 at a cost of $27,000. It is expected to serve for eight years and have a salvage value of $3,000. Calculate the depreciation expense for the first and third years of the truck's life using the following methods. If required, round ...
*August 14, 2013*

**statistics**

ok...i'm still looking for an aswer. be.t 330 and 630 ect?
*July 24, 2013*

**statistics**

Suppose that the average score on the GMAT exam is 500 and that the standard deviation of all scores is 100 points. You would expect approximately 95% of all GMAT scores to be between
*July 24, 2013*

**Computers C++**

I really need help with this one... 1.) Look at the following declaration. enum Person { BILL, JOHN, CLAIRE, BOB }; Person p; Indicate which of the following statements or expressions is valid. A.) p = BOB; B.) p++; C.) BILL > BOB D.) p = 0; E.) int x = BILL; F.) p = ...
*July 12, 2013*

**Computers C++ (2)**

Ok... Thanks!
*July 12, 2013*

**Computers C++ (2)**

Thanks Steve! Is that I don't have a book, can't afford it too expensive. You made it clear... A, b, 7
*July 12, 2013*

**Computers C++ (2)**

1.) Assume c is a char variable. What value does c hold after the following statement executes? (Type the answer without quotes.) c = toupper('a');___________ 2.) Assume c is a char variable. What value does c hold after the following statement executes? (Type the ...
*July 12, 2013*

**Computers C++**

1.) Look at the following array definition. int numbers[] = { 2, 4, 6, 8, 10 }; What will the following statement display? cout << *numbers + 3 << endl;
*July 12, 2013*

**Computers C++ (2)**

Thank You Steve For All The Help! (If its you helping me with this one) 1.) Consider the following array definition: int values[ 5] = { 4, 7, 6, 8, 2 }; What does the following statement display? cout << ( values[ 2] + values[ 3]) << endl; 2.) Consider the ...
*July 11, 2013*

**Computers C++**

1.) Consider the following array definition: int values[ 5] = { 4, 7, 6, 8, 2 }; What does the following statement display? cout << values[ 4] << endl;
*July 11, 2013*

**Computers C++**

1). The name of an array stores the __________ of the first array element. 1) memory address 2) value 3) element number 4) subscript 5) None of these
*July 9, 2013*

**Computers**

Can someone please tell me what I'm doing wrong? #include <iostream> #include <iomanip> using namespace std; int main() { //.... //Constants for adult and child ticket costs const double cost_per_child_tix = 3; const double cost_per_adult_tix = 6; //Variables ...
*July 4, 2013*

**Alegebra**

Solution A is 60% alcohol and Solution B is 30% alcohol. How much of each is needed to make 30 gallons of a solution that is 40% alcohol
*May 13, 2013*

**Grade 12 Calculus **

I need helping in filling in the blanks/ -the angle formed at the centre of the circle by two radii is the _______ angle. -cos delta, sin delta, tan delta are known as the ___________trigonometric ration -cos (pie/2 - x)=sinx is an example of a ________ identity
*May 11, 2013*

**Physics**

A block of mass m = 2.80kg is held in equilibrium on a frictionless incline of angle= 56.6 by the horizontal force F. (a) Determine the value of F.(b) Determine the normal force exerted by the incline on the block. Hint: Draw a free-body diagram of the block. Choose a ...
*May 9, 2013*

**Math**

This is gr 12 calculus btw I need helping in filling in the blanks/ -the angle formed at the centre of the circle by two radii is the _______ angle. -cos delta, sin delta, tan delta are known as the ___________trigonometric ration -cos (pie/2 - x)=sinx is an example of a ...
*May 8, 2013*

**Pre-Calculus**

Find the inverse function for the function f(x)=2^(x)+1/2^(x)-1 You will need to use some properties of logarithmic functions to find the inverse of this particular function.
*April 30, 2013*

**Computers**

1. An 7-bit counter is wired as follows: The CLK input to the first stage (LSB) is the system clock. Each stage's output is used as the CLK input to the next higher stage. This counter is a: A. MOD 128 ripple counter B. MOD 256 synchronous counter C. MOD 256 ripple counter...
*April 29, 2013*

**Life orientation**

Discuss 5 ways in which the human or environmental problem impacts on the community.
*April 22, 2013*

**English**

Yes but I still need help
*April 21, 2013*

**English**

What are the shifts in the meaning of the word "CONQUER"? How can they be characterized and what might account for these changes? Thank you
*April 21, 2013*

**English**

Please help... What are the shifts in the meaning of the word "CONQUER"
*April 21, 2013*

**English**

What are shifts in the meaning of the word "conquer" not "conquest"...sorry...please help
*April 21, 2013*

**English**

What are the shifts in meaning of the word "Conquest"?
*April 21, 2013*

**HSS**

how the swahili language came into being
*April 14, 2013*

**calculus**

i got this. thnks
*April 7, 2013*

**calculus**

f(x)=x^2/x^2-16
*April 7, 2013*

**calculus**

Please help!! *f(x)= x(x+6)^1/2 find two x intercepts. Then show that f'(x)=0 at some point between the 2 x intercepts. *Use mean value theorem for f(x)= x(x^2-3x+1) for interval [1,4] I FOUND DERIAVITIVE WHICH IS 3X^2-6X+1.THEN? *find all critical numbers find all ...
*April 7, 2013*

**calculus**

*The sum of 6 times the length of a shed. It width is 60ft. What are dimensions that gives maximum area for floor of the shed?
*April 7, 2013*

**History**

In what three ways does the Constitution divide power?
*March 27, 2013*

**math **

(1.0425) exponent 12
*March 19, 2013*

**Physics**

A particle is moving along the x-axis subject to the potential energy function U(x) = a(1/x) + bx2 + cx – d, where a = 6.00 J m, b = 26.0 J/m2, c = 3.00 J/m, and d = 26.0 J. Determine the x-component of the net force on the particle at the coordinate x = 3.37 m. Not sure ...
*February 27, 2013*

**Physics**

Depending on the amount the mass is increased by, we can say that the force of the object is increase by x amount of mass. Example. If m2 = 3m1, a2 = a1 than F2=?F1 F2=m2a2 -> F2=3(m1)(a1) you see that (m1)(a1) is F1. In conclusion, F2 = 3F1.
*February 20, 2013*

**Physical Science**

Fnet(t) = m(t)a. YOu know the acceleration its a basic math question from here. a=7m/s/s m(t)=2100kg m(t)*a = 14,700N is the Force on the Truck
*February 20, 2013*

**Physical Science**

Fnet = ma a = Fnet/m
*February 20, 2013*

**Maths**

Solve the equation:a right pyramid with vertical height stand on rectangular base widith that measures 20cm by 14cm the hieght of the pyramid is 10cm calculate to 3 significant figure the length of the slant height , the surface area of the pyramid, volume of the pyramid
*February 18, 2013*

**Physics**

Proper design of automobile braking systems must account for heat buildup under heaving braking. Calculate the thermal energy dissipated from brakes in a 1360-kg car that descends a 13.5° hill. The car begins braking when its speed is 88 km/h and slows down to a speed of ...
*February 12, 2013*

**Biostats**

82-75= 7/4.8=1.45
*February 3, 2013*

**Physics**

A soccer ball is released from the top of a smooth incline. After 3.80 s the ball travels 9.1 m. One second later it has reached the bottom of the incline. Assume the ball's acceleration is constant and determine its value ( m/s2)
*January 31, 2013*

**CHM**

As the number of solute particles in a given volume of solution increase will: freezing point increase, vapor press decrease? or vice versa or boiling point increase, vapor pressure decrease? or vice versa?
*January 13, 2013*

**math**

How many years will it take to reach 18600 if Tina invests 1000 in an account that pays 6.5 percent interest?
*January 7, 2013*

**maths**

Prove Cos (x+60)= 2Sinx
*December 3, 2012*

**Physics**

He got 15/16 because you have to take the (-1/4*V1i)^2. You square the (-1/4) to get (1/16) and when you move it over to the other side, you will get m1v1i^2 - (1/16)m1v1i^2 = m2v2f
*November 9, 2012*

**Physics**

1. On a spacecraft, two engines are turned on for 648 s at a moment when the velocity of the craft has x and y components of v0x = 4360 m/s and v0y = 6270 m/s. While the engines are ﬁring the craft undergoes a displacement that has components of x = 4.11 × 106 m ...
*October 1, 2012*

**Chemistry**

What does it mean if the percent of sulfate in a sample of alum is greater that the theoretical percent of sulfate in alum?
*September 24, 2012*

**science**

the pH of colorless solution is 3. find its [H+] and [OH-] cancentration
*September 17, 2012*

**Physics**

1. 2D motion. A cannon fires a ball with a velocity at 300 MPS. THe cannon has an angle of inclination of 50 degrees. The surface is flat. 1. What is the time of flight? 2. Where does it land? What is its maximum height? What is the velocity vector of the ball at impact in ...
*September 16, 2012*

**physics **

A person travels by car from one city to another with diﬀerent constant speeds between pair of cities. She drives for 31.5 min at 89.6 km/h, 11.8 min at 101.8 km/h, and 58.5 min at 36.4 km/h, and spends 24.8 min eating lunch and buying gas. Find the distance between the...
*September 2, 2012*

**math**

How do I convert 16ft in .58 sec to mph
*August 25, 2012*

**arithmetic**

find the value of each group of base ten blocks = 100 block = 10 small block = 1 how do you figure this out?
*August 22, 2012*

**math**

i have math and my teacher wrote 26,397 and want's me to write the number in expanded form. how do i do it?
*August 22, 2012*

**health**

im here for ashworth also
*August 11, 2012*

**maths**

two 2 digit numbers reading across and two 2 digit numbers reading down
*July 1, 2012*

**business**

How important is accounting information to the decision making processes of a business
*June 5, 2012*

**psychology**

Hello, where can I look to find the answer for how are research methods Godly?
*June 3, 2012*

**physics honors**

Suppose that pure gold was to be made into a very long, thin wire for high-end stereo systems. (Gold is often used because it does not oxidize so it makes very good electrical contacts). If the gold wire was to have a radius of 0.01 cm, how long of a wire could you make from ...
*May 31, 2012*

**physics**

so do i still solve it the same way
*May 31, 2012*

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