Wednesday
January 18, 2017

Posts by john

Total # Posts: 8,197

Math
g = 24+C c = a +35 a+g+c =100 can you finish from here?
October 18, 2016

math
30/18 = L/27 5/3 = L/27 3L = 5(27) L = 45
October 18, 2016

Math
10 times 25 = 250 200 + 250 = 450 feet blow
October 18, 2016

Math
.5 = 5/10= 1/2 3/8 is less than 1/2 18/8 = 2 1/4 or 2.25
October 18, 2016

math
5 times 1.8
October 18, 2016

Maths
You want factors of 4 and -3 since they multiply to equal 12 and add to be the 1 in front of the x. you should have x = 3 and x = -4 When I worked with the first and third, I got (x-3)(x+2) x = 3 x = -2 so the x=3 showed up twice. Substitute it in each of the 3 equations to ...
October 18, 2016

Math please help
-x/(x-5) + 7x/(x^2 -3x-10) -x/x-5) + 7x (x-5)(x+2) The first fraction needs a denominator of (x-5)(x+2) Multiply the num and denom by x + 2 -x^2 -2x +7x = -x^2 +5x num over (x-5)(x+2) num factor -x(x-5) cancel the x-5 -x/(x+2)
October 18, 2016

math
7. The tennis team is selling key chains as a fundraiser. If its goal is to raise is at least 180, how many key chains must it sell at $2.25 each to meet that goal? Write and solve an inequality. a. 2.25k (greater than or equal to) 180; k (greater than or equal to) 100 b. 180k...
October 18, 2016

math
On a 28-question test, there are 2-point questions, 4-point questions, and 5-point questions. The test is worth a total of 100 points. There are twice as many 2-point questions as 5-point questions on the test. How many 2-point questions are on the test?
October 18, 2016

English
Some have more than a hundred and some have none, its very colourful and you see it every morning someone please tell me the answer
October 18, 2016

Grammer
“I don't know, but it's hanging by its feet,” chirped Flitter
October 17, 2016

Grammer
What is the simple subjects and simple predicates?
October 17, 2016

Grammer
i don't know, but it's hanging by its feet chirped flitter What is the complete subject and complete predicates
October 17, 2016

Economics-Macro
Suppose you borrow $100 of principal that must be repaid at the end of two years, along with interest of 4 percent per year. If the annual inflation rate turns out to be 8 percent, (a) What is the real rate of interest on the loan? (b) What is the real value of the principal ...
October 17, 2016

Economics-Macro
Help please?
October 17, 2016

Algebra2
It looks like inverse, x doubled from the 1st to second point and y became 1/2 as much. from 5 to 15 tripled 2 to 2/3 became 1/3
October 17, 2016

math
1/2 (n) - 6 = 4 add 6 then divide by 2.
October 17, 2016

6th grade algebra
To get the number of feet you have to take the square root of 7410 then divide that answer by 13 to get "h"
October 16, 2016

Math
5280 feet = 1 mile 90/5280 = what part of a mile 60 seconds in 1 minute and 60 minutes in 1 hour divide 1.9/3600 what part of an hour to get mph, divide the first answer by the second.
October 16, 2016

Statistics
10 disks 7 or 8 makes 2 possibilities 2/10 = 1/5
October 16, 2016

MATH
8 divided by 5 = 1.6 so 1.3 is not correct.
October 16, 2016

Math
I agree.
October 16, 2016

math
d = rt 360 = (x -t)33 360= (x+t)22.25 360 = 33x-33t 360 = 22.5x - 22.5t Can you solve from here?
October 16, 2016

Math
(12-9)/sd = 2.5 I got 2.5 by finding the inv of .0062 3/sd = 2.5 3/2.5 = sd sd = 1.2
October 15, 2016

Statistics
A confidence interval is found by adding and subtracting the margin of error. If we take the difference of 235.1 and 197.2 and divide by 2 we have the margin of error. this margin of error is found by taking 1.96 times the standard deviation. To find the standard deviation ...
October 15, 2016

Math
Do you mean something like (10-2) x 25 = 250 -50 = 200 then 200 (20-3) 4000 - 600 = 3600
October 14, 2016

Statistics
0 because if all scores are 80 the mean is 80 and all values are 80 so there is no spread in the data.
October 14, 2016

Statistics
a) a 30 instead of a 3 gives us more variability in the data.
October 14, 2016

Physics
An automobile leaves the store, first going south at 88 km/h for 2 hours, and then turns on a road heading 20 degrees east of north at 55 km/h for 1.5 hours. Calculate the (x,y) components of the net displacement of the automobile from the starting position, where the x-axis ...
October 13, 2016

Math
65t -50t =97.5 15t = 97.5 divide by 15 to find time in hours
October 13, 2016

math
(1/7)^4
October 12, 2016

math
This is a right triangle. The legs are (x+20)1 and 1x (x+20)^2 +x^2 = 450^2 2x^2 +40x + 400 = 202500 2(x^2+20 x + 200) =202500 x^2 + 20x + 200 =101250 x^2 + 20x -101050 = 0 Can you finish from here?
October 12, 2016

algebra
The line has a slope of 3 because y = mx+b where m is the slope. Perpendicular lines have slopes that are negative reciprocals. So we have a 3 which makes our perp line's slope -1/3 If you multiply the two slopes you will always get a -1 if the lines are perpendicular If ...
October 12, 2016

Math
Scientific notation always leaves one number to the left of the decimal .62 x 10 ^2 move the decimal point 1 place to the right to get 6.2 and now the exponent becomes 1.
October 12, 2016

Geometry
(3, 5) (5, -11) (x, y) 5 -3 = 2 so the x value should be 2 more than the midpoint (2,y) -11-5 = -16 difference so we need a difference of -16 from the -11 (2,-27)
October 12, 2016

Algebra 2
We have to see the table. I do know that a probability is always between 0 and 1. It looks like the only possible answer is 2/3. That is just a guess.
October 12, 2016

Algebra 2
without the table or a good description... I can't help.
October 12, 2016

Maths
1000 = k5^3 1000 = 125k 1000/125 = k k = 8 64 = 8 q^3 8 = q^3 q = 2
October 12, 2016

Geography
What are 3 types of zone?
October 12, 2016

Math
Where would I put parentheses to make this true? 7-3x4+6=27
October 11, 2016

Science
What is a bird speed flying at 12 m/s with a crosswind at 20 m/s
October 10, 2016

Math
each person gets 1/3 of the kites since there are 3 kites, each person gets 1 kite.
October 10, 2016

Statistics
I believe the E-4 is tell you to move the decimal point 4 places to the left. .000812 is less than .01 Remember all probabilities will be between 0 and 1.
October 10, 2016

spanish 2
Please fill in the blanks with the correct spanish form of the word in pernethesis!!!! Help Hoy yo______(ir) a un guateque campesino. ______ (ser) un ________ (event) especial en Cuba. Hay mucha _________ (food) y _________ (music). Yo _______ (estar) muy ___________ (excited...
October 10, 2016

History
i wish i knew
October 10, 2016

Statistics
Suppose systolic blood pressure (the higher of the two blood pressure readings) of a large group of individuals is normally distributed. If the mean is 122 and the standard deviation is 20, then
October 9, 2016

algebra
(x-1)/6 = 1/3 3x-3 = 6 3x = 9 x = 3
October 9, 2016

Math
16 + 7 = 23 oz. the other piece ways 12 oz.
October 9, 2016

PLEASE HELP ME
It is the median and it is not misleading. The $23.50 is an outlier. find the middle of the data it falls between 9 and 9.50
October 9, 2016

math
Whenever you multiply or divide across an inequality by a negative number, you change the direction. Think about 2 > -4 Multiply both sides by a -3 -6 > 12 NO... change the inequality -6<12
October 9, 2016

Management
low price
October 9, 2016

Management
If time is running out to finish the operational-planning process before the start of the new fiscal year, it should be cut short with the resolve to start earlier the next year. true or false?
October 9, 2016

Mathematics Help
35 females + 11 males who got a C 46/64 =
October 8, 2016

algebra
150-(65+20g)
October 8, 2016

maths
15(35.75)+16(42.25) = James total 25(35.75)+10(42.25) = Sally's total 18(35.75) + 13(42.25) = Andres Find the amounts then subtract the smallest from the largest.
October 8, 2016

Math
What is the standard form of five and three hundred fifty-two thousandths? 1: 5.0032 2: 5,352,000 3: 5.352 4: 5.30052000 Is it two?
October 8, 2016

maths
4, 6,7, 8 in the ten thousands 0,1,2,4,6,7,8 can be used in the thousands hundreds and tens could use any of the digits ones would have to be 0,2,4,6,8 if we can repeat the digits then 4 times 7 times 7 times 7 times 5 The only problem is that we don't want to have 40000 ...
October 8, 2016

math
A = lw 96 = (w+4)(w) w^2 + 4w -96 = 0 (w +12 )(w-8) =0 w=-12 cannot have a neg value here w = 8 so l = 12
October 8, 2016

Math
Jai = julia + 2/5 julia I am not sure what you mean by the next sentence.
October 8, 2016

Math
P = B+12 (P-1) = 3(B-1) P-1 =3B-3 substitute for P using first equation B+12-1 =3B -3 14 = 2B B = 7 P = 19 last year they were 6 and 18.
October 8, 2016

STATISTICS
true positive happens 96% of the time. Multiply .006 times .96 false positive .006 times .04 add the two together.
October 7, 2016

Statistics
c) When you create a 99% confidence interval this indicates that If you made many intervals by taking samples of the same size from a population then...99% of all of the intervals that you make will contain the true population mean. It would not contain 99% of the population. ...
October 7, 2016

Math
Thank you so much Bosnian!
October 7, 2016

Math
Find the product and explain the process and reasoning 0.67 x 0.3 Please help I don't know how I could explain this :(
October 7, 2016

Engineering/Physics
When gasoline is burned in the cylinder of an​ engine, it creates a high pressure that pushes on the piston. If the pressure is 150 ​pound-force per square​ inch, and it moves the 3​-inch diameter piston a distance of 6 centimeters in 0.1 ​seconds...
October 5, 2016

Physics
Briefly describe the relative quantities of kinetic, gravitational potential and mechanical energy as a stone is thrown in the air vertically upward and falls to the person's hand at the same height that it left.
October 4, 2016

math
r/b = 3/5 5r = 3b 20 + r = b 5r = 3(20 + r) 5r = 60 + 3r 2r = 60 r = 30 b = 50 ratio is 30/50 or 3/5
October 4, 2016

Chemistry
Base = NaOH, 0.084 M drips 2ml at a time Acid = Phenol, KA=1.3*10^-10 You have 28.0 ml in flask, and it is 0.06 M How would you find the molarity and moles of OC6H5-1
October 3, 2016

Math
x + x +1 = -11 2x = -12 x = -6 x = -5 product = 30
October 3, 2016

Math
That means that you have to multiply 11 times itself 2016 times. You would need to use a calculator with 11 ^ 16.
October 3, 2016

Algebra
distance = rate x time 5 + 40x = 50x 5 = 10x x = 1/2 hr
October 3, 2016

math
F = 4J F+J>= 55 4J + J >= 55 5J >= 55 J = 11
October 3, 2016

Math
7 x 3000 and 7 x 4000
October 3, 2016

Algebra
Tell us what you think and we will check it.
October 3, 2016

MATH
The forty and the 9th term of an AP is -3 and 12 respectively. Find the common difference and some of the frist 7th term
October 3, 2016

Chemistry
An Unknown Compound (M=60.09 g/mol) is composed of Carbon, Hydrogen and Oxygen. Combustion of 0.255 g of the unknown compound produces 0.561 g Carbon Dioxide and 0.306 g of Water. Determine the molecular formula of the compound.
October 3, 2016

math
2) The lifetimes of light bulbs of a particular type are normally distributed with a mean of 370 hours and a standard deviation of 5 hours. What percentage of bulbs has lifetimes that lie within 1 standard deviation of the mean on either side?
October 2, 2016

psychology
According to a survey in the U.S. in the 1990s, people in their 40s reported more lifetime sex partners than did people in their 50s. Which of these is the most likely explanation? a) People in their 50s were starting to lose their memory. b) People in their 40s had been young...
October 1, 2016

psychology
According to Hans Selye, stress is a) a specific response to a specific demand on the body. b) a cognitive, not physical, response to a threatening situation. c) any reaction that increases activity in the parasympathetic nervous system. d) a nonspecific response of the body ...
October 1, 2016

psychology
According to Abraham Maslow, what do we do when we have several motivations? A) We alternate between one and the other. B) We try to satisfy them at the same time. C) We are frozen with indecision. D) We start with the lowest need and work up. D Is my answer
October 1, 2016

math
john hiked 8 1/3 miles in 3 3/4 hours. what was John's average speed for the hike
September 30, 2016

Math
(3/4)pg/1 min = 3 pg/x cross multiply 3 = 3/4 x x = 4
September 29, 2016

Stats,
Put the values in order from lowest to highest. 25th percentile will have 1/4 of the data below that number. 90th will have .9 of the data below that nu
September 29, 2016

Algebra
7 more than 5 times a number is 10. Replace "a number" with something from the real world.
September 29, 2016

STATS
for anyone one question is .50
September 29, 2016

math
In a pet store there are 12 kittens for sale and 80 puppies. what is the ratioof the number of puppies to kittens ? write your answer as a fraction and reduce your result . thank you
September 29, 2016

English
I checked 1-9 and I agree with all of them except for the first one.
September 28, 2016

math
a^2 + b^2 = c^2 x^2 + 11^2 = 12^2 x^2 +121 =144 x^2 = 23 take the sq rt of 23 to find your answer.
September 28, 2016

Math
yes.
September 28, 2016

Algebra
Graph y = -|x -5| Make it a dotted line because the original problem is less than not less than or equal to. Let x=0 y=-5 x = 5 y = 0 x = 4 y = -1 shade
September 27, 2016

adv algebra
x/5 -3 = x/4 -2 x/5 -x/4 = 1 4x/20 -5x/20 = 1 -x/20 = 1 -x = 20 x = -20
September 27, 2016

science
Density = mass/volume 56/22 = If the answer is greater than 1 ..the density of water then it will sink.
September 27, 2016

Math
8 orange/12 selzer or 2/3 divide each part of the fraction by 3 to get per 1 cup of selzer. 2/3 over 3/3 or 2/3 for 1.
September 27, 2016

Math
A wire of length 24 meter is to be folded in the form of a rectangle. If each side of a rectangle has to be an integer (measured in meters), what is the maximum number of rectangles that can be formed by folding the wire?
September 27, 2016

Algebra
Pick any two points (0, 17.5) and (3, 35.4) Find the slope (35.4-17.5)/(3-0) 17.9/3=5.96666 or 5.97 y = mx+b 17.5 = b since x=0 y = 5.97x + 17.5 replace x with 15 and find y.
September 27, 2016

Algebra
Do this one the same way that I did the other one. (5,80) and (12,85)
September 27, 2016

statistics
An outlier is a value that is much larger than the rest or much smaller than the rest. range is the difference between the largest and the smalleest value. mean = add them all and divide by 30 mode is the value that occurs more than once. median. put all of the data in order ...
September 27, 2016

math
6200-6300 divided by 400 to get the z-score. Then use the z-table to find the probability of less than you z-score or you could use a stat calculator like at TI-83 or 84 to find the probability. For forty days you have to use 400 divided by the square root of 40 as the ...
September 26, 2016

Statistic
A recent poll conducted by Gallup Inc. asked the following question: In general, how much trust and confidence to you have in the mass media - such as newspapers, TV, and radio - when it comes to reporting the news fully, accurately, and fairly? A great deal, a fair amount, ...
September 26, 2016

Math
a ratio is when you put one number over another so I would say the ratio of 3 and 6 would be 3/6 which equals 1/2
September 26, 2016

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