# Posts by willa

Total # Posts: 24

**math**

evaluate the series , 6 ‡” (2k+2) k=1

*June 18, 2011*

**math**

prison escapees. the table the number of escapees from certain prisons each year. Year, 1990 escapees 878, Year 1991 escapees, 956. Year,1992 escapees 1039, Year 1993 escapees 1497. Year 1994 escapees 1463, Year 1995 escapees 1277. Enter the missing term in the series whose ...

*June 18, 2011*

**math**

find the fourth term of the geometric sequence whose first term is 8 and whose common ratio is -2, a under 4 = .

*June 18, 2011*

**math**

find a under n for the following geometric sequence. a ubder 1 =5,r = - 2. so a under n = ( ) n-1.

*June 18, 2011*

**math**

find a under n for the following geometric sequence. a ubder 1 =5,r = - 2. so a under n = ( ) n-1.

*June 18, 2011*

**math**

write the first four terms of the sequence for n = 1,2,3,and four. F(n) =4 , a1 = , a2 = , a3= a4 = .

*June 18, 2011*

**math**

simplify the expression if possible. IN e^5. Type an exact answer in simplified form.

*June 18, 2011*

**math**

Evaluate the expression without using a calculator. log under 2 1

*June 18, 2011*

**math**

find the formula for the inverse, f(x) = x + 7.

*June 18, 2011*

**math**

Ms Sue i missed the answer to the rectanglular pen

*June 18, 2011*

**math**

A retangular pen for a pet is 5 feet longer than it is wide. Give possible values for the width. W of the pen if its area must be between 176 and 750 square feet inclusively. The width of the pen ranges from the smaller value of the width, Feet to the larger value of width ...

*June 18, 2011*

**math The function D(x) models the cumulative numbe**

Thge function D(x) models the cumulative number of deaths from a disease x years after 1984. Estimate the year when ther were 89,000 deaths. D(x) = 2386x^2 +5147x + 5398. there were approximately 89,000 deaths in the year?

*June 18, 2011*

**evaluating a math question**

a Rectanglular pen for a pet is 5 feet longer than it is wide. give possible values for the width W of the pen if its area must be between 176 and 760 square feet inclusively. The width of the pen ranges from the smaller value of the width--- feet, to the larger value of the ...

*June 18, 2011*

**math**

use the internet in a country is given by the function f(x) = 0.48x^2 - 1.694x +0.315, where the output is in millions of users. In this formula x = 6 corresponds to 1996. x = 7 corresponds to 1997, and so on until x = 20 corresponds to 2010. Estimate when the number of ...

*June 18, 2011*

**math**

use the internet in a country is given by the function f(x) = 0.48x^2 - 1.694x +0.315, where the output is in millions of users. In this formula x = 6 corresponds to 1996. x = 7 corresponds to 1997, and so on until x = 20 corresponds to 2010. Estimate when the number of ...

*June 18, 2011*

**math**

The current I in an electrical conductor varies inversely as the resistance R of the conductor. The current is 2 amperes when the resistance is 940 ohms. What is the current when the resistance is 540 ohms/

*June 18, 2011*

**math**

find the variation constant in which y varies inversely as x, and the following condition exists, y =12 and x = 1/3

*June 18, 2011*

**math**

find the variation constant in which y varies inversely as x, and the following condition exists, y =12 and x = 1/3

*June 18, 2011*

**math**

The functionf(x) = 300x/100-x models the cost, F(x) in m illions of dollars to remove x% of a rivers pollutants. If the government commits $325 million for this project, what percentage of the pollutants can be removed?

*June 18, 2011*

**math**

A hardware supplier manufactures three kinds of clampos. Types A,B,C. Productionrestrictions force it to make 20 more type C clamps than the total of the othertypes and twice as many type B clamps as type A clampos. the shop must producew 320 clamps per day . How many of each ...

*June 17, 2011*

**math**

Solve the system of equati(a) symbolically,(b) graphically, and (c) numericallyons6x+2y= 6, -12x +3y = - 12. Find the ordered pair or is it innitely with many solutions or no sultion. i need to graph it also. And also i need to complete the table of values. y = -3x +3, y = 4x...

*June 17, 2011*

**math**

I need to find an ordered pair and graph x+y =13, -x+2y = 11

*June 17, 2011*

**math**

Solve the system of equations using elimination x+y=13, -x+2y=11 QWhat is the solution, and type an ordered pair.

*June 17, 2011*

**math**

traffic signs are regulated by the manual on uniform control devices. the perimeter of some traffic sign must be 128 inches. Also its length is 6 inches longer than its width. Fin the width and the length of the sign.

*June 17, 2011*

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