Square (second power, quadratic) + power - practice problems - page 16 of 17
Number of problems found: 328
- Pool
If water flows into the pool by two inlets, fill the whole for 20 hours. The first inlet filled the pool 8 hour longer than the second. How long does the pool take to fill with two inlets separately? - Factors
Can the expression 4x ² -47.6x +39.6 be factored into rational factors? - Power
Number left(sqrt(14 * sqrt[ 4 ] (14)) right) 17 can be written in the form 14^x. Find the value of x. - Cube
Calculate the surface cube with edge 11 dm.
- Sphere
The sphere's surface is 12100 cm², and the weight is 136 kg. What is its density? - 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 - 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?
- 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? - Is right?
Is a triangle with sides 51, 56, and 77 right triangle? - Rectangle SS
The perimeter of a rectangle is 268 cm, and its diagonal is 99.3 cm. Determine the dimensions of the rectangle. - Circle
How big is an area of a circle if its circumference is 51.2 cm? - Quadratic equation
Quadratic equation 7x²+bx+c=0 has roots x1 = 67 and x2 = -84. Calculate the coefficients b and c.
- Right triangle
The legs of the right triangle are in the ratio a:b = 2:8. The hypotenuse has a length of 87 cm. Calculate the perimeter and area of the triangle. - Widescreen monitor
Computer businesses were hit by a wave of widescreen monitors and televisions. Calculate the area of the LCD monitor with a diagonal size 20 inches at a ratio of 4:3 and then a 16:9 aspect ratio. Is buying widescreen monitors with the same diagonal more - Similarity n-gon
9-gones ABCDEFGHI and A'B'C'D'E'F'G'H'I' are similar. The area of 9-gon ABCDEFGHI is S1=190 dm², and the diagonal length GD is 32 dm. Calculate the area of the 9-gon A'B'C'D'E'F'G'H'I' if G'D' = 13 dm. - Trapezium zoom
How many times increase the area of the trapezoid if all sides and altitude increase 5 times? - Tangents
To circle with a radius of 41 cm from the point R guided two tangents. The distance of both points of contact is 16 cm. Calculate the distance from point R and circle center.
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