10/14/21

Math word problem
There are 7 times as many cars as there are trucks in a parking lot. If there are 49 cars in the parking lot, how many trucks are there?
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10/14/21

Math Linear Algebra help
Find equations for all the planes that intersect the y-axis at y = 1 and the z-axis at z = 2, and are tangent to the sphere (𝑥 − 2)^2 + 𝑦^2 + 𝑧^2 = 4. You cannot use calculusPlease help and if you... more
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10/14/21

The glycol-water mixture used as coolant has a glycol content of22 % and a total mass of 20 kg. If the mixture is to be concentrated to 40 %, how much pure glycol must be added to the mixture?
Please solve this math anyone.
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10/14/21

Work time math help
There are three groups, Group A has 6 efficient workers who can get a work done in 10 days. Group B has 8 moderately skilled workers who can get the same work done in 12 days. Group C has 10... more
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10/14/21

math question math
The function f(t)=5600(1.006)10t represents the change in a quantity over t decades. What does the constant 1.006 reveal about the rate of change of the quantity? The function is... more
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10/15/21

Math help immediately
Xander buys two shirts of equal value and a pair of pants for $80. If the pants cost $36, how much did each shirt cost?
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10/15/21

Please help with this math question
. The ordinary differential equation : dy/dx = e^(-x^2) , y(0)=1 ; maybe solved using a. No technique covered in class b. Integration by parts c. The substitution y = xv d. Euler method
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10/16/21

math question help
Josh went to try the Ferris wheel ride in the theme park, and his distance from the ground (in meters) on the Ferris wheel is given by the function,where s denotes the amount of time in seconds.... more
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10/17/21

Math word problem
A waitress sold 19 ribeye steak dinners and 18 grilled salmon​ dinners, totaling ​$566.87 on a particular day. Another day she sold 30 ribeye steak dinners and 6 grilled salmon​ dinners, totaling... more
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10/18/21

Help needed with math question
1.Given s = t4 − 4t3 − 20t2 + 15t, where t ≥ 0, at what time is the acceleration 0?2.Given: A particle moves according to a law of motion s = f(t), t ≥ 0, where t is measured in seconds and s in... more
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10/18/21

I cannot figure out the domain or the range.
Thor has a job as a math tutor that paid $7 an hour and he made at most $210 every week.If x is the hours he worked and y is the money he made in a week, write the domain and range of the function... more
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10/19/21

Mickey and Minnie were tasked with graphing the equation `4x-3y=21.`

Mickey and Minnie were tasked with graphing the equation `4x-3y=21.`Mickey says that he will find the `x` and `y-intercepts,` then graph.Minnie says she will transform the equation into `Slope\... more
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10/19/21

math questions please help
The monthly cost C, in dollars, for calls from the United States to Japan on a certain phone plan is modeled by the function 𝐶(𝑥) = 0.07𝑥 + 24.99 Where x is the number of minutes used and C is in... more
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10/19/21

math question math
6900 dollars is placed in an account with an annual interest rate of 8.25%. How much will be in the account after 26 years, to the nearest cent?
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10/19/21

math: statistics
The physical plant at the main campus of a large state university recieves daily requests to replace florecent lightbulbs. The distribution of the number of daily requests is bell-shaped and has a... more
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10/19/21

Simple math problem
Will you please give the answer to this problem that is creating much discussion on Facebook: 1+2+3×4=Thank you.
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10/20/21

math question math
A new car is purchased for 17000 dollars. The value of the car depreciates at 13.5% per year. What will the value of the car be, to the nearest cent, after 12 years?
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10/20/21

math question math
A new car is purchased for 16400 dollars. The value of the car depreciates at 8.25% per year. What will the value of the car be, to the nearest cent, after 10 years
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10/20/21

calculus math202
As a snowball melts, its area A decreases at the rate 3 cm2/minute. Find the rate with which it radius decreases, when the radius r=3 cm. Use that the surface area of a sphere is given by the... more
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10/20/21

calculus math202
Find the second derivative of f(x) = 5x ln(x) and evaluate it at x=2. (Enter your answer correct to at least three decimal places.) 
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10/20/21

calculus math 202
The area A of a disk of radius r is given by the formula A= πr2. Assume that the area increases at a rate of 3ft2/sec. Find the rate with which the radius increases at the moment when the diameter... more
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10/20/21

calculus math 202
Given 2x2y - 2y3 = 5x - 4 , use implicit differentiation to find the derivative y'=dy/dx and evaluate it at the point (x,y)=(2,1).   a y' = 9/25 b y' = -9/7 c y' = 4/3 d y' = -3/4 e y'... more
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10/20/21

i have a math question
Ben made 5 cups of lemonade.  He wants to pour it into glasses that will hold  cups of lemonade each.  How many glasses will he be able to fill with lemonade?
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10/20/21

I need help on this math assignment
If john is 117.5 miles from surt, how long has he been traveling? show all work
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10/21/21

Math 0099 Discusssion
Write an equation of the line passing through the point (2, -1) and parallel tothe line 𝑦 = 3𝑥− 5. Give your answer in slope-intercept form. Show all work
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