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Posts by Ernie

Total # Posts: 72

algebra
Abigail buys a dress for $12 & a backpack for $10.50. She is also charged 9% sales tax on the dress only. Write an expression that represents total cost abigail had to pay

Algebra 2
Did I solve this word problem correctly? In last week’s basketball game, the Lions scored 6 less than twice what the Bobcats scored. The sum of their scores is 30. How many points did the Lions and the Bobcats score individually? 2x+2x-6=30 2x+2x=36 4x=36 4x/4=36/4 x=9 ...

math
lim x-->-9 x^2+10x+9 / x-9

math
you shouldn't be a tutor if you don't want to help people.

math
The Fan cost Index(Fci)represents the cost of four average-price tickets, refreshments, and souvenirs to a sporting event. The FCIs for an Independent tennis league and an Independent basketball league totaled $123.62. The basketball FCI was $$6.98 more than that of tennis. ...

math
The Fan cost Index(Fci)represents the cost of four average-price tickets, refreshments, and souvenirs to a sporting event. The FCIs for an Independent tennis league and an Independent basketball league totaled $123.62. The basketball FCI was $$6.98 more than that of tennis. ...

math
Thanks DonHo

math
If a building contractor hires 5 day laborers and 2 concrete finishers, his payroll for the day is $1200. If he hire 1 day laborer and 4 concrete finishers, his daily cost is $924. Find the daily wage for each type of worker.

math
Thanks Reiny

math
linear

math
If 18g of a radioactive substance are present initially and 5 yr later only 9g remains, how much of the substance will be present after 11yr?

algebra
The Fan cost Index(Fci)represents the cost of four average-price tickets, refreshments, and souvenirs to a sporting event. The FCIs for an Independent tennis league and an Independent basketball league totaled $123.62. The basketball FCI was $$6.98 more than that of tennis. ...

algebra
If a building contractor hires 5 day laborers and 2 concrete finishers, his payroll for the day is $1200. If he hires i day laborer and 4 concrete finishers, his daily cost is $924. Find the daily wage for each type of worker.

math
The Fan cost Index(Fci)represents the cost of four average-price tickets, refreshments, and souvenirs to a sporting event. The FCIs for an Independent tennis league and an Independent basketball league totaled $123.62. The basketball FCI was $$6.98 more than that of tennis. ...

algebra
The Fan cost Index(Fci)represents the cost of four average-price tickets, refreshments, and souvenirs to a sporting event. The FCIs for an Independent tennis league and an Independent basketball league totaled $123.62. The basketball FCI was $$6.98 more than that of tennis. ...

math
If a building contractor hires 5 day laborers and 2 concrete finishers, his payroll for the day is $1200. If he hires i day laborer and 4 concrete finishers, his daily cost is $924. Find the daily wage for each type of worker.

algebra
The Fan cost Index(Fci)represents the cost of four average-price tickets, refreshments, and souvenirs to a sporting event. The FCIs for an Independent tennis league and an Independent basketball league totaled $123.62. The basketball FCI was $$6.98 more than that of tennis. ...

algebra
x=17 x-7=10+17=27+17=44+13=57

algebra
The perimeter of a triangle is 57in. The longest side is 13in. longer than the medium side, and the medium side is 7 in. more than the shortest side. find the length of each side of the triangle. The length of the longest side is ___in, the length of the medium side is __in. ...

algebra
Find the doubling time of an investment earning 7% interest if interest is compounded continuously is ____years. Round to the nearest tenth of a year.

algebra
``If 18g of a radioactive substance are present initially and 5 yr later only 9 g remain, how much of the substance will be present after 11yr ? after 11yr there will be ___g of a radioactive substance. round the final answer to the nearest thousandth as needed. round all ...

math please help!!!!!
Factor f(x) into linear factors given that k is a zero of f(x). f(x)=x^3+(12-4i)x^2+(32-48i)x-128i, k=4i In completely factored form, f(x) =____ (factor completely. simplify your answer)

math help
Factor f(x) into linear factors given that k is a zero of f(x). f(x)=x^3+(12-4i)x^2+(32-48i)x-128i, k=4i In completely factored form, f(x) =____ (factor completely. simplify your answer)

math please check answer
Express f(x) in the form f(x)=(x-k)q(x)+r for the given value of k. f(x)=x^3 +6x^2 +10x+4,k=-2 Is f(x) =0 ?

algebra
Express f(x) in the form f(x)=(x-k)q(x)+r for the given value of k. f(x)=x^3 +6x^2 +10x+4,k=-2 Is f(x) =0 ?

math ?
Express f(x) in the form f(x)=(x-k)q(x)+r for the given value of k. f(x)=x^3 +6x^2 +10x+4,k=-2 Is f(x)= 0 ?

math help
Express f(x) in the form f(x)=(x-k)q(x)+r for the given value of k. f(x)=x^3 +6x^2 +10x+4,k=-2 f(x)=_____

math, please help
Express f(x) in the form f(x)=(x-k)q(x)+r for the given value of k. f(x)=x^3 +6x^2 +10x+4,k=-2 f(x)=_____

math please help
-2;p(x)=3x^3+5x-6 is -2 a zero of the polynomial(x) ?

math thanks for your help
-2;p(x)=3x^3+5x-6 is -2 a zero of the polynomial(x) ?

math
Express f(x)in the form f(x)=(x-k)q(x)+r for the given values of k. f(x)=x^3+6x^2+10x+4, k=-2 f(x)=____

math
Express f(x)in the form f(x)=(x-k)q(x)+r for the given values of k. f(x)=x^3+6x^2+10x+4, k=-2 f(x)=____

math
find the distance between the points (-20,16) and (-15,19). also find the midpoint of the segment that joins the points. what is the distance?_____ what is the midpoint?______

math
find the slope of the line containing the pair of points. (-5,-10) and (-4,-3)

math
Evaluate the function f(x)=-3x+9 at the indicated values. a). f(2)=_____ simplify your answer b).f(-2)=_____ simplify your answer

math thanks for your help
let f(x)=-4x+7. find and simplify f(n) f(n)=_____ simplify your answer

algebra
let f(x)=-5x+6 find and simplify f(x+2) f(x+2)=____

math really need help!
let f(x)=-5x+6 find and simplify f(x+2) f(x+2)=___

Algebra
let f(x)=-5x+6 find and simplify f(x+2) f(x+2)=___

math please help
let f(x)=-5x+6 find and simplify f(x+2) f(x+2)=____

math
2x^2+5x-1=0

math
midpoint (4,13) endpoint (0,6). find the other endpoint

algebra
midpoint (-5,-15) endpoint (-13,-8). find the other endpoint

Algebra please help
$11,000, invested for 9 years at 3% compounded quarterly.

finance
$11,000, invested for 9 years at 3% compounded quarterly.

math, please help!
5249

math, please help!
The table lists how poverty level income cutoffs(in dollars) for a family of four have changed over time. Use the midpoint formula to approximate the poverty level cutoff in 1987 to the nearest dollar. the poverty level cutoff in 1987 was _____ dollars. ( round to the nearest ...

College Algebra
The table lists how poverty level income cutoffs(in dollars) for a family of four have changed over time. Use the midpoint formula to approximate the poverty level cutoff in 1987 to the nearest dollar. the poverty level cutoff in 1987 was _____ dollars. ( round to the nearest ...

math
A satellite's escape velocity is 6.mi./sec, the radius of the earth is 3960 mi, and the earth's gravitational constant (g) is 32.2 ft./sec^2. How far is the satellite from the surface of the earth?

math alegebra
A satellite's escape velocity is 6.mi./sec, the radius of the earth is 3960 mi, and the earth's gravitational constant (g) is 32.2 ft./sec^2. How far is the satellite from the surface of the earth?

Algebra 2
Any function? The simplist way to do this would be to assume a cubic function with roots -1, -5, and 3. This would mean it would be factorable into: (x+1)(x+5)(x-3). Simply multiply these three fuctions together and there's an answer.

earth
thank you bobpursley, and Anne so much for your help. you are the best

earth
A satellite's escape velocity is 6.mi./sec, the radius of the earth is 3960 mi, and the earth's gravitational constant (g) is 32.2 ft./sec^2. How far is the satellite from the surface of the earth?

math Too Hard!
to determine the size pf a parks moose population, caturalists catch 72 moose, tag them, and then set them free. months later 65 moose are caught, of which 15 have tags. Estimate the size of the moose population.

math word problem
to determine the size pf a parks moose population, caturalists catch 72 moose, tag them, and then set them free. months later 65 moose are caught, of which 15 have tags. Estimate the size of the moose population.

math alegebra
to determine the size pf a parks moose population, caturalists catch 72 moose, tag them, and then set them free. months later 65 moose are caught, of which 15 have tags. Estimate the size of the moose population.

math-algebra
The speed of a moving sidewalk at an airport is 2ft/sec. A person can walk 93ft forward on the moving sidewalk in the same time it takes to walk 12ft on a non moving sidewalk in the oppsite direction. At what rate would a person walk on a nonmoving sidewalk?

physics
The speed of a moving sidewalk at an airport is 2ft/sec. A person can walk 93ft forward on the moving sidewalk in the same time it takes to walk 12ft on a non moving sidewalk in the oppsite direction. At what rate would a person walk on a nonmoving sidewalk?

algebra
Thank you so much.

algebra
The speed of a moving sidewalk at an airport is 2ft/sec. A person can walk 93ft forward on the moving sidewalk in the same time it takes to walk 12ft on a non moving sidewalk in the oppsite direction. At what rate would a person walk on a nonmoving sidewalk?

intermediate algebra
a motorboat moves 25 miles per hour in still water. it travels 21 miles upstream and 21 miles downstream in a total time of 2.0 hours. whatis the speed of the current?

algebra
Thank you so much Ms. Sue

algebra
492

algebra
to determine the number of trout in a lake, a conservationist cathes 123 trout, tags them and throws them back into the lake. later,44 trout are caught, 11 of them are tagged. how many trout would the conservationist expect to be in the lake

Algebra
25sq2 – 21sq2 = 4(25 + 21) = 4 . 46 = 184

Algebra
Find the 1st four hexagonal numbers and the formula The difference of two squares a2 - b 2 can be found in 16sq2 – 13sq2 = 3(16 + 13) = 3 . 29 = 87

Math
Yes, Rob had a larger pizza

5th grade
hwo would I calculate the original discount price of and item if coast 150 and was sold to me at 75

spell
I LIKE TO SPELL RIGHT BUT I CAN`T SPELL IT RIGHT.NOW I WANT YOU HELP ME OKAY,AND I WANT TO STUDY WITH YOU...PLEASE.I WANT TO SCORE A FOR ENGLISH SUBJECT.

vocab
I NOT UNDERSTAND YOUR QUESTION SORRY

Calcuus
What are the points of inflection for the function f(x)=xln(x)? Thanks a lot, you guys are the bomb!

ino literacy
what is the call number of the oldest copy of Ellison's Shadow And Act

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