Arithmetic + quadratic equation - practice problems
Number of problems found: 24
- Evaluate 37
Evaluate the function K(x) = 2x²+3x-2 what is the value of K(½) - Twice squared
If the square of twice a number is 81, what is the number? Give a positive number x. - Decimal numbers
When two decimal numbers are multiplied, the answer is 0.072. When the same two decimal numbers are added, the answer is 0.72. What are the two decimal numbers? - Elišča's 5549
"My daughter will be x years old in x²," said Elišča's father in 1991 at her birthday party. a) When will the said event occur, and how old will Eliška be at that time? b) In what year was Eliška born? c) How old was Eliška in 1991? - Four-thirds 3852
Anton said: I have a natural number x. I'll get three times as much if I increase it to four-thirds. What number did Anton mean? - Calculate 25111
The quadratic function has the formula y = -2x²-3x + 8. Calculate the function value in points 5, -2, and ½. - Two expressions
When x = 3 and y = 5, how much does the value of 3x² – 2y exceed the value of 2x² – 3y? - Unknown number 4
I think number. When I divided its square root by its 1/9, I got a number 1. What number am I thinking? - Product - quadratic equation
The product of the two numbers is 900. If we increase the lowest number by two, its product will increase by 150. Determine both numbers. - Solve: 6632
For n ϵ N solve: 100 = (0.01n)² - Determine 3782
Determine the value of x if x0.5 = 6 - Positive 3298
Which positive number equals twice its square? - Unknown 72884
The square root of an unknown number equals the square of 2. What is the unknown number? - Primes 2
For what primes p,q,r is true: p²-(q+r)²=647 - Equation 46771
Insert three numbers between the roots of the equation 4x² - 17x + 4 = 0 so that they form with the given GP numbers - Root
The root of the equation (x-10)² +4 = x² +35x is (equal or greater or less than zero). ... - Pagans
Jano and Michael ate pagans. Jano ate three more than Michael. The product of their counts (numbers) is 180. How many pagans did each of them eat? - Exponential 3858
Determine m (solve the exponential equation - unknown in the exponent): 0.25 μm = 0.5 - Difference 1632
The difference between the two numbers is 7. Their product 144. What are the numbers? - Specify 3808
Specify a number that is 61% less than 10².
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