Ernie
Popular questions and responses by Ernie
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. (
asked on March 18, 2014 
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.
asked on December 4, 2014 
Calculus
1. Express the given integral as the limit of a Riemann sum but do not evaluate: integral[0 to 3]((x^3  6x)dx) 2.Use the Fundamental Theorem to evaluate integral[0 to 3]((x^3  6x)dx).(Your answer must include the antiderivative.)
asked on May 7, 2018 
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?
asked on December 3, 2014 
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. (
asked on March 18, 2014 
Calculus
Using 4 equalwidth intervals, show that the trapezoidal rule is the average of the upper and lower sum estimates for the integral from 0 to 2 of x squared, dx .
asked on May 7, 2018 
Writing skills
Their sure the only sounds they will hear at night will be the wash of ocean waves or the croaks of bullfrogs.
asked on May 13, 2017 
Writing skills
Many people who spend their summers in a city dream of owning a cottage at the shore or in the mountains by a lake.
asked on May 14, 2017 
Calculus
Find the interval on which the curve of y equals the integral from 0 to x of 6 divided by the quantity 1 plus 2 times t plus t squared, dt is concave up.
asked on May 8, 2018 
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.
asked on October 7, 2013 
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?
asked on October 6, 2013 
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
asked on December 1, 2014 
algebra
The Fan cost Index(Fci)represents the cost of four averageprice 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
asked on December 3, 2014 
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
asked on October 6, 2013 
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.
asked on December 1, 2014 
Writing skills
Whether or not we have chosen to use our licenses since then.they remain of enormous value to us.
asked on May 13, 2017 
math ?
Express f(x) in the form f(x)=(xk)q(x)+r for the given value of k. f(x)=x^3 +6x^2 +10x+4,k=2 Is f(x)= 0 ?
asked on November 20, 2014 
Writing skills
In the past,the United States Public Health service and state local health departments dominate the field.
asked on May 10, 2017 
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?______
asked on November 1, 2014 
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
asked on December 1, 2014 
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+2x6=30 2x+2x=36
asked on November 1, 2015 
mathalgebra
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
asked on October 7, 2013 
Writing skills
Many people who spend their summers in a city dream of owning a cottage at the shore or in the mountains by a lake.
asked on May 13, 2017 
algebra
The Fan cost Index(Fci)represents the cost of four averageprice 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
asked on December 2, 2014 
Writing skills
Some just look forward to the perspect of watching birds and animals,such as rabbits or deer,in their natural habitats.
asked on May 13, 2017 
math
The Fan cost Index(Fci)represents the cost of four averageprice 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 $$6.98 more
asked on December 4, 2014 
math
The Fan cost Index(Fci)represents the cost of four averageprice tickets, refreshments, and souvenirs to a sporting event. The FCIs for an Independent tennis league and an Independent basketball league totaled $123.62. The basketball FCI was $$6.98 more
asked on December 2, 2014 
Algebra please help
$11,000, invested for 9 years at 3% compounded quarterly.
asked on April 23, 2014 
algebra
The Fan cost Index(Fci)represents the cost of four averageprice 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 $$6.98 more
asked on December 2, 2014 
math please help!!!!!
Factor f(x) into linear factors given that k is a zero of f(x). f(x)=x^3+(124i)x^2+(3248i)x128i, k=4i In completely factored form, f(x) =____ (factor completely. simplify your answer)
asked on November 21, 2014 
math
The Fan cost Index(Fci)represents the cost of four averageprice tickets, refreshments, and souvenirs to a sporting event. The FCIs for an Independent tennis league and an Independent basketball league totaled $123.62. The basketball FCI was $$6.98 more
asked on December 4, 2014 
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
asked on October 6, 2013 
math help
Factor f(x) into linear factors given that k is a zero of f(x). f(x)=x^3+(124i)x^2+(3248i)x128i, k=4i In completely factored form, f(x) =____ (factor completely. simplify your answer)
asked on November 21, 2014 
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.
asked on October 7, 2013 
finance
$11,000, invested for 9 years at 3% compounded quarterly.
asked on April 23, 2014 
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.
asked on December 2, 2014 
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
asked on October 6, 2013 
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?
asked on December 4, 2013 
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.
asked on December 2, 2014 
math
midpoint (4,13) endpoint (0,6). find the other endpoint
asked on September 27, 2014 
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.
asked on October 7, 2013 
Calcuus
What are the points of inflection for the function f(x)=xln(x)? Thanks a lot, you guys are the bomb!
asked on March 19, 2008 
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
asked on May 30, 2016 
math please help
let f(x)=5x+6 find and simplify f(x+2) f(x+2)=____
asked on October 30, 2014 
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?
asked on December 8, 2013 
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?
asked on December 8, 2013 
math
lim x>9 x^2+10x+9 / x9
asked on September 12, 2015 
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
asked on April 1, 2013 
math
Express f(x)in the form f(x)=(xk)q(x)+r for the given values of k. f(x)=x^3+6x^2+10x+4, k=2 f(x)=____
asked on November 19, 2014 
ino literacy
what is the call number of the oldest copy of Ellison's Shadow And Act
asked on August 26, 2007 
math please check answer
Express f(x) in the form f(x)=(xk)q(x)+r for the given value of k. f(x)=x^3 +6x^2 +10x+4,k=2 Is f(x) =0 ?
asked on November 20, 2014 
algebra
Express f(x) in the form f(x)=(xk)q(x)+r for the given value of k. f(x)=x^3 +6x^2 +10x+4,k=2 Is f(x) =0 ?
asked on November 20, 2014 
math, please help
Express f(x) in the form f(x)=(xk)q(x)+r for the given value of k. f(x)=x^3 +6x^2 +10x+4,k=2 f(x)=_____
asked on November 20, 2014 
math
find the slope of the line containing the pair of points. (5,10) and (4,3)
asked on October 31, 2014 
Algebra
let f(x)=5x+6 find and simplify f(x+2) f(x+2)=___
asked on October 30, 2014 
algebra
midpoint (5,15) endpoint (13,8). find the other endpoint
asked on September 24, 2014 
math
Express f(x)in the form f(x)=(xk)q(x)+r for the given values of k. f(x)=x^3+6x^2+10x+4, k=2 f(x)=____
asked on November 19, 2014 
math
Evaluate the function f(x)=3x+9 at the indicated values. a). f(2)=_____ simplify your answer b).f(2)=_____ simplify your answer
asked on October 31, 2014 
math help
Express f(x) in the form f(x)=(xk)q(x)+r for the given value of k. f(x)=x^3 +6x^2 +10x+4,k=2 f(x)=_____
asked on November 20, 2014 
math thanks for your help
2;p(x)=3x^3+5x6 is 2 a zero of the polynomial(x) ?
asked on November 20, 2014 
algebra
let f(x)=5x+6 find and simplify f(x+2) f(x+2)=____
asked on October 30, 2014 
math
2x^2+5x1=0
asked on October 1, 2014 
Algebra
25sq2 – 21sq2 = 4(25 + 21) = 4 . 46 = 184
asked on April 1, 2013 
5th grade
hwo would I calculate the original discount price of and item if coast 150 and was sold to me at 75
asked on December 23, 2010 
math thanks for your help
let f(x)=4x+7. find and simplify f(n) f(n)=_____ simplify your answer
asked on October 30, 2014 
math please help
2;p(x)=3x^3+5x6 is 2 a zero of the polynomial(x) ?
asked on November 20, 2014 
math really need help!
let f(x)=5x+6 find and simplify f(x+2) f(x+2)=___
asked on October 30, 2014

Calculus
What does it mean by "upper and lower estimates?" How do I find these?
posted on May 7, 2018 
Writing skills
What corrections should be made to this sentence?
posted on May 15, 2017 
Writing skills
Thank you Ms.Sue should I make any corrections to this sentence.
posted on May 15, 2017 
Math
Yes, Rob had a larger pizza
posted on April 4, 2016 
math
you shouldn't be a tutor if you don't want to help people.
posted on December 4, 2014 
math
Thanks DonHo
posted on December 4, 2014 
math
Thanks Reiny
posted on December 4, 2014 
math
linear
posted on December 3, 2014 
algebra
x=17 x7=10+17=27+17=44+13=57
posted on December 2, 2014 
math, please help!
5249
posted on March 19, 2014 
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)(x3). Simply multiply these three !@#$%^&tions together and there's an answer.
posted on December 8, 2013 
earth
thank you bobpursley, and Anne so much for your help. you are the best
posted on December 4, 2013 
algebra
Thank you so much.
posted on October 7, 2013 
algebra
Thank you so much Ms. Sue
posted on October 6, 2013 
algebra
492
posted on October 6, 2013 
vocab
I NOT UNDERSTAND YOUR QUESTION SORRY
posted on May 5, 2008 
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.
posted on May 5, 2008