Square root + expression of a variable from the formula - math problems
Number of problems found: 94
- Square root 2
If the square root of 3m2 +22 and -x = 0, and x=7, what is m?
- Completing square
Solve the quadratic equation: m2=4m+20 using completing the square method
- Solve equation
solve equation: ?
- Unknown number 4
I think number. When I divided its square root by its 1/9, I get a number 1. What number am I thinking?
- Square s3
Calculate the diagonal of the square, where its area is 0.49 cm square. And also calculate its circumference.
- Square diagonal
Calculate the length of the square diagonal if the perimeter is 476 cm.
- Cube edge
Determine the edges of the cube when the surface is equal to 37.5 cm square.
Suppose the square's sides' length decreases by a 25% decrease in the content area of 28 cm2. Determine the side length of the original square.
- Unknown number 17
Milada said, I am thinking of a number such that I evaluate expression x1/3, the value of the expression would be 5. Which number Milada thinking?
- Cube 8
The surface of the cube is 0.54 m2. Calculate the length of the cube edge.
- Diagonal of the rectangle
Calculate the diagonal of the rectangle which area is 54 centimeters square and the circuit is equal to 30 cm.
- Extending square garden
Mrs. Petrová's garden had the shape of a square with a side length of 15 m. After its enlargement by 64 m2 (square), it had the shape of a square again. How many meters has the length of each side of the garden been extended?
- Sphere A2V
The surface of the sphere is 241 mm2. What is its volume?
- What is
What is the annual percentage increase in the city when the population has tripled in 20 years?
- Annual increase
The number of cars produced increased from 45,000 to 47,000 in 3 years. Calculate the average annual increase in cars in%.
- Sphere radius
The surface of the sphere is 60 cm square. Calculate its radius; result round to tenth of cm.
- The schoolyard
The schoolyard had the shape of a square with an 11m side. The yard has been enlarged by 75 m2 and has a square shape again. How many meters was each side of the yard enlarged?
The cylinder surface is 922 dm2, its height is equal to the radius of the base. Calculate height of this cylinder.
- The ladder
The ladder is 10 m long The ladder is 8 m high How many meters is the distant heel from the wall?
- Find parameters
Find parameters of the circle in the plane - coordinates of center and radius: ?