Square (second power, quadratic) + square - practice problems - page 124 of 127
Number of problems found: 2537
- Binomials
To binomial 36x²-168x, add a number to the resulting trinomial be square of the binomial.
- Powers
Is it true for any number a,b,c,d equality:? (a-b-c-d) 6 = (d+c+b-a) 6
- Rectangular field
One dimension of the rectangular field is 56 m greater than the second dimension. If each side of the rectangle increases by 10 m increases, the surface field is 1480 m². Find dimensions of the field.
- Root
Use the law of square roots: cbrt (sqrt[2] (sqrt[4] (6))) = sqrt[n] (6)
- Quadratic equation
Determine the numbers b and c that the numbers x1 = -7 and x2 = 5 were roots of the quadratic equation: -3x ² + b x + c = 0
- Trigonometric functions
In the right triangle is: tg α= frac(4) 2 Find the value of s and k: sin α= (s)/(√ 20) cos α= (k)/(√ 20)
- Diagonals of the rhombus
Calculate the height of the rhombus whose diagonals are 18 cm and 6 cm.
- Garden
How many steps of 76 cm circumvent square garden with area 1.8 ha?
- Special cube
Calculate the cube's edge if its surface and volume are numerically equal numbers.
- Cube
The sum of lengths of cube edges is 56 cm. What are its surface and volume?
- Numeric question
Is it possible a negative, irrational number?
- Pipes
The water pipe has a cross-section 1184 cm². An hour has passed 743 m³ of water. How much water flows through the pipe with cross-section 300 cm² per 6 hours if water flows at the same speed?
- Chord
In a circle with a radius r=60 cm is the chord, 4× longer than its distance from the center. What is the length of the chord?
- Rotating cone II
Calculate the area of the surface of a rotating cone with base radius r=15 cm and height h=13 cm.
- Gold wire
From one gram of gold was pulled wire 1.4 km length. What is its diameter if the density of Au is ρ=19.5 g/cm³?
- Is right?
Is a triangle with sides 51, 56, and 77 right triangle?
- Proof I
When added to the product of two consecutive integers larger one, we get the square larger one. Is this true or not?
- Kitchen
The kitchen roller has a diameter of 72 mm and a width of 287 mm. How many square millimeters roll on one turn?
- Rectangles
How many rectangles with area 3152 cm² whose sides are natural numbers?
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