elementary calculators math

Elementary transformations are of the following three types: Interchange of any two rows (or columns) The multiplication of the elements of a row (or column) by a non-zero number. The addition to the elements of any row (or column) the corresponding elements of any other row (or ..

Elementary transformations are of the following three types: Interchange of any two rows (or columns) The multiplication of the elements of a row (or column) by a non-zero number. The addition to the elements of any row (or column) the corresponding elements of any other row (or ..

What is the difference between the number of children in Elementary and High schools in the year 2000? => about 9,000 or about 50 or about 1 or about 6,000..

The enrollments made in elementary schools and high schools from 1994 through 1998 is shown in the double bar graph. Which year has the maximum difference between enrollments of high schools and elementary schools? => 1994 or 1997 or 1995 or 1996..

25 children from Ever Dale Elementary School are going on a picnic in vans. Each van can hold 7 children and the driver. How many vans must be rented? => 5 or 6 or 4 or 3..

In the discrete series, when deviations are taken from actual mean, the formula ..

In a factory, 400 calculators were checked, out of which 40 were found to be defective. How many defective calculators can be found in a sample of 1200 calculators? => 110 or 120 or 130 or 90..

289 elementary school students and 120 middle school students wrote letters for a time capsule. Estimate the total number of letters written. => 410 or 400 or 300 or 500..

Calculate the missing percentage from the circle graph. => 45 or 60 or 75 or 55..

Which of the following can be calculated only for a cone but not for a cylinder? => volume or base area or curved surface area or slant height..