Expression of a variable from the formula - high school - practice problems - page 41 of 44
Number of problems found: 874
- Cylindrical 3394
The cylindrical container with a diameter of 1.8 m contains 2000 l of water. What height does the water reach? - Cube diagonals
Determine the volume and surface area of the cube if you know the length of the body diagonal u = 216 cm. - Pyramid
The pyramid has a base rectangle with a = 6cm, b = 8cm. The side edges are the same, and their length is 12.5 cm. Calculate the surface of the pyramid. - Cuboid and ratio
A cuboid has dimensions in a ratio of 1:2:6, and the surface area of the cuboid is 1000 dm². Calculate the volume of the cuboid.
- Electrons 3363
How many electrons must be together to put a charge of -1C together? - Above Earth
To what height must a boy be raised above the earth to see one-fifth of its surface? - Specify 3347
We have a number. If we divide its fourth power by its square, we get the number 0.25. Find this number. - Function 3345
Perform the inverse function from f: y = 4x + 5. - Airplane
Aviator sees part of the earth's surface with an area of 200,000 square kilometers. How high does he fly?
- Calculate 3339
A1 + a3 = 15 a1 + a2 + a3 = 21 Calculate a1 and q (quotient of the geometric sequence). - Rectangle
The length of the rectangle is 12 cm greater than three times its width. What dimensions and area this rectangle has if its circumference is 104 cm? - Harvesters
The first harvester reaps the grain from the land for 24 hours, and the second harvester for 16 hours. How many hours will it take to harvest by two harvesters, but the second harvester started working four hours later than the first? - 1600 3263
a1 = 1 s40 = 1600 a40 =? - Calculate 3209
Calculate the lengths of the sides of the triangle ABC, in which angles α = 113°, β = 48°, and the radius of the circle of the triangle described is r = 10 cm.
- Quadrilateral-trapezoid 3172
We cut two triangles from the rectangular plate so that the resulting quadrilateral-trapezoid with the same arm lengths has an area of 32 cm², and one of its bases is twice as long as the other. What is the area of the two triangles that make up the waste - Dimensions 3159
The rectangle is 6 cm longer than the width. A square with a side equal to the length of the rectangle has an area of 78 cm² larger than the rectangle. Calculate the dimensions of the rectangle. - Right-angled 3147
In a right-angled triangle ABC, the height of side c has a length of 6 cm. The letter D indicates the heel of the height. Line segment AD is 8 cm long. Calculate the area of triangle ABC. ( example on Monitor 9 ) - Salary in enterprise
The average salary in the company is 27 000 CZK. 30% of workers have the lowest average income of 19 thousand CZK. There was an increase in the wages in this group by 2%. How much % increased the average wage across the company? - Subsequent 3056
There are 48 pupils in the third row and 17 more in each subsequent row than in the previous one. Find how many pupils there are in the first and tenth rows.
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