Mathematics

Is there a lousy classification of mathematics or certification or math exam?
Do you want to become more accustomed to it and transform the boring subject into a fun exploration?
Want to feel the joy of understanding and computing an example?
Do you want to train in thinking, looking for problems solutions?
We consider mathematics to be a bearer of common sense, without which t isn't straightforward in the next career to achieve success. Whether as a manager, programmer, judge, mason, or electrician, you will make decisions every day, the quality of which will depend on your wisdom, maturity, concentration. The smartest and better decisions you make in life, the greater the potential for success in your personal and working life. This will help you with our portal with examples of mathematics with their solutions. If you are looking for math material, you are getting ready for a prize, a graduate, a monitor, a nationwide knowledge test is also right here. In addition to examples, we also offer online math calculators.

• Triangular prism - regular
The regular triangular prism is 7 cm high. Its base is an equilateral triangle whose height is 3 cm. Calculate the surface and volume of this prism.
• Permille of alcohol
I have 2 per mille of alcohol in my blood. How many milliliters is it when I have 5 liters of blood?
• In the classroom
There are 30 boys and a few girls in the class. In the six months, 28 boys and all girls benefited, which was 95% of all pupils. How many pupils are there in the classroom?
• Hemisphere cut
Calculate the volume of the spherical layer that remains from the hemisphere after the 3 cm section is cut. The height of the hemisphere is 10 cm.
• Five element
The geometric sequence is given by quotient q = 1/2 and the sum of the first six members S6 = 63. Find the fifth element a5.
• Kostka
Kostka je vepsána do koule o poloměru r = 6 cm. Kolik procent tvoří objem kostky z objemu koule?
• Troops
There are two leaders in the tourist group, with an average age of 30 years and several children with an average age of 10 years. The total age of the group is 12 years. How many children are in the group?