Examples for secondary school students - page 231 of 237
Number of problems found: 4730
- Daily average
Calculate the average temperature during the day if the temperature was 24 °C for 14 hours and 14 °C for 10 hours. - Rectangle
In a rectangle with sides 8 and 9, a diagonal is drawn. What is the probability that a randomly selected point inside the rectangle is closer to the diagonal than to any side of the rectangle? - Equation
Equation f(x) = 0 has roots x1 = 25, x2 = 64, x3 = 9. How many roots have equation f(x²) = 0? - Function
For linear function f(x) = ax + b is f(19)=141; f(20)=168. Calculate m, if f(m) = 2018. - Power
Number left(sqrt(16 * sqrt[ 7 ] (16)) right) 19 can be written in the form 16^x. Find the value of x. - Colors
Arnold received 7 coloured pens of different colours for their birthday. In how many ways can they be arranged side by side in a pencil case? - Map
A forest has an area of 77 ha. What area does it occupy on a map at scale 1:10000? - Wire
Each pass of a wire through a drawing die reduces its diameter by 13%. What will the diameter of a wire be after 6 passes, if it starts with a diameter of 6 mm? - Hockey
The hockey match ended 8:10. How many different matches could be? - One half
One-half of 2 63 is: ... - Line
Is it true that the lines that do not intersect are parallel? - Gauss
Help little C.F. Gauss to sum all the integers from 1 to 150. - Product
The product of two consecutive odd numbers is 1295. What are these numbers? - Pipeline
By what percentage does the cross-sectional area of a pipe decrease if the circular cross-section is replaced by a square with the same perimeter? - Circles 2
Calculate the area of the region between the circumscribed circle and the inscribed circle of a triangle with sides 29 cm, 16 cm, and 21 cm. - Arc and segment
Calculate the length of circular arc l, the area of the circular arc S1, and the area of circular segment S2. The circle's radius is 88, and the corresponding angle is (4)/(7) π. - Calculation of CN
Calculate: (486 choose 159) - (486 choose 327) - Sequence
Calculate what member of the sequence specified by (5n-2+15) has value 20. - Pumps
A tank is filled by two pumps working together in 23 minutes. The first pump alone fills the tank 37 minutes faster than the second pump alone. How long does it take the first pump to fill the tank on its own? - Diofant 2
Is equation 1140x +876y = 48 solvable on the set of integers Z?
Do you have unsolved math question and you need help? Ask a question, and we will try to solve it. We solve math question.
