7,188 Answered Questions for the topic Math Help
07/06/18
Math question
g(x)=-2x^2-20x-46
1. What is the function's maximum value?
2. Where does the function's maximum value occur?
Thank you for your help!
07/05/18
Hydrogen Peroxide: C1=100%, V1=50 ml, C2=2%, V2=???
Solve the following problems. (You need not compute the amount of diluent)
07/05/18
NaOH (sodium hydroxide) C1=30%, V1=500 ml, C2=5%, V2=???
Solve the following problems. (You need not compute the amount of diluent)
07/05/18
HCL (hydrochloric acid): C1=100%, V1=20ml, C2=1%, V2=???
Solve the following problems and determine the amount of diluent.
07/05/18
Formalin: C1=10%, V1=???, C2= 2%, V2= 12L
Solve the following problems and determine the amount of diluent.
07/05/18
Isopropyl alcohol C1 = 100%, V1 = ? , C2 =70%, V2= 2.5 L
Solve the following problems and determine the amount of diluent.
07/05/18
Prepare 1000 mL of 1% HCL using the stock solution of 70% HCL. How much of the stock solution and how much water is required?
Determine the volume of stock solution needed and the volume of diluent
07/05/18
Prepare 30 L of formalin from a 100% stock solution. How much formalin is needed to make a 5% solutions?
Determine the volume of stock solution needed and the volume of diluent
math question
an = (-1)^n/5n+4, n=1,2,3 . . .
(the n is supposed to go under the a but i don't know how to put it that way through typing)
Math Help
07/04/18
i dont know how to do any of this :Given: 25x2 +49 = -70x A) Find the value of the discriminant. B) State the number and type of roots/solutions/zeros. {
I dont know how to do this at all. I just need the answer. Given: 25x2 +49 = -70xA) Find the value of the discriminant.B) State the number and type of roots/solutions/zeros. {2 real, 2 imaginary/ 1...
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Math Help
07/04/18
someone help!!: x2 - 8x + 5 = 0 A) Find the value of the discriminant. B) State the number and type of roots/solution/zeros. {2 real, 2 imaginary, or 1 real}
I need help with the question so badly!!!! 10 ptsGiven: x2 - 8x + 5 = 0A) Find the value of the discriminant.B) State the number and type of roots/solution/zeros. {2 real, 2 imaginary, or 1...
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Math Help
07/04/18
combinations and permutations
Tom and Jerry are hoping to be selected from their class of 27 as president and vice-president of the Social Committee (they just want the positions, but don't care which of the two is the...
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07/04/18
I need help with my math homework
Problem 1: Write an equation in point-slope form for the line that has a slope of 1/3 and passes through (-2,8)
Problem 2: Write an equation in slope intercept form for the line that passes...
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Identify all restrictions on the variable x in this context
A high-speed passenger train in Europe completes an 800 km trip in 3 hours. The train travels the first 600 km at an average speed that was 100 km/h faster than the last 200 km of the trip. If x...
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Math Help
07/03/18
A hawk, flying at a height of 50 feet, spots a rat on the ground. If he dives down to catch the rat at a speed of 45 feet per second, how long will it take him
to catch the rat?
The two formulas that you need are:h = -16t2 + sh = -16t2 +vt + s
The two formulas that you need are:
h = -16t2 + s
h = -16t2 +vt + s
Math Help Math
07/03/18
I need help with interpreting a linear equation
A one year old bluegill fish is 3 inches long, while a four year old bluegill fish is 6.6 inches long. Assuming growth rate can be approximated by a linear equation, Write an equation in...
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Math Help
07/03/18
the difference between -12 and a number, x, is 20
i keep getting -44 when trying to solve for x, but that's incorect am i doing something wrong does the equation have no solution
Math Help Math
07/03/18
Help with writing linear equations
Question 1: Write an equation in slope intercept form of the line through (4,2) with the slope of 1/2.
Question 2: Write an equation in Point slope form for the line that passes through (2,-5)...
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Math Help Math
07/03/18
Math Problem - need help
The formula A = P(1+r)^t represents the amount of money A in an account after t years, where P is the amount initially deposited and r is the interest rate. Sunyi currently has $1839.79 in an...
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Math Help Math
07/02/18
Help with math please
The formula A = P(1+r) represents the amount of money A in an account after 1 year, where P is the amount initially deposited and r is the intrest rate. Note that the interest rate is written as a...
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Math Help
07/02/18
counting question
A password is required to log into a system that only recognizes numbers and letters of the alphabet (not case sensitive). You want to create a password using 4 numbers or letters, but cannot reuse...
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Math Help
07/02/18
counting question
Sam is the captain of an academic team in the class. A teacher teacher will choose 6 of the 29 students in the class to be on an academic team.How many ways can 6 students be chosen as a team from...
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Math Help
07/02/18
I need help with my math homework.
Help me find the solution-
Problem #1 - The formula A = LW finds the area of a rectangle by multiplying the length of one side and the width of the adjacent side. Solve the formula for length...
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A chemical company makes two brands of antifreeze. The first brand is 20% pure antifreeze and the second brand is 70% pure antifreeze. In order to obtain 180 -
gallons of a mixture that contains 40% pure antifreeze, how many gallons of each brand of antifreeze must be used?
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