9 and 4, respectively; the number will end in 49.
There are seven digits: 8,000,000
It is 2.
If the digits may not be repeated, there are 6x5x4x3x2x1 = 720 numbers, If digits can be repeated, the answer is 6x6x6x6x6x6 = 46,656 numbers If zero is ong the available digits but is excluded from the first place. 5x6x6x6x6x6=38,880 numbers
01.
01
In standard form, the decimal point is placed after the first digit and the power of 10 is how many digits the decimal point has to move to get back to its original place (positive to the right, negative to the left). The decimal point doesn't have to move (any digits) to get back to its original position so the power of 10 is 0: 1.06 = 1.06x100
There are seven digits: 8,000,000
Armstrong numbers are the sum of their own digits to the power of the number of digits.
121
It is 2.
There are 5 significant figures in 10057.-----------------When are Digits Significant? Non-zero digits are always significant. Thus, 22 has two significant digits, and 22.3 has three significant digits. With zeroes, the situation is more complicated: # Zeroes placed before other digits are not significant; 0.046 has two significant digits. # Zeroes placed between other digits are always significant; 4009 kg has four significant digits. # Zeroes placed after other digits but behind a decimal point are significant; 7.90 has three significant digits. # Zeroes at the end of a number are significant only if they are behind a decimal point as in (c). Otherwise, it is impossible to tell if they are significant. For example, in the number 8200, it is not clear if the zeroes are significant or not. The number of significant digits in 8200 is at least two, but could be three or four. To avoid uncertainty, use scientific notation to place significant zeroes behind a decimal point: 8.200 ´103 has four significant digits 8.20 ´103 has three significant digits 8.2 ´103 has two significant digitsSignificant Digits in Multiplication, Division, Trig. functions, etc. In a calculation involving multiplication, division, trigonometric functions, etc., the number of significant digits in an answer should equal the least number of significant digits in any one of the numbers being multiplied, divided etc. Thus in evaluating sin(kx), where k = 0.097 m-1 (two significant digits) and x = 4.73 m (three significant digits), the answer should have two significant digits. Note that whole numbers have essentially an unlimited number of significant digits. As an example, if a hair dryer uses 1.2 kW of power, then 2 identical hairdryers use 2.4 kW: 1.2 kW {2 sig. dig.} ´2 {unlimited sig. dig.} = 2.4 kW {2 sig. dig.}
When multiplying by a power of ten the digits of the number move left the same number of place value columns as the power. When dividing by a power of ten the digits of the number move right the same number of place value columns as the power. As this is awkward to do with pencil and paper, the effect on the position of the decimal point is used instead: To multiply by a power of ten the decimal point is moved right the same number of digits as the power of 10; To divide by a power of ten the decimal point is moved left the same number of digits as the power of 10; If there are insufficient digits to do the moving zeros (0) are inserted as necessary.
there is not a for sure solution. i have googled it
If the digits may not be repeated, there are 6x5x4x3x2x1 = 720 numbers, If digits can be repeated, the answer is 6x6x6x6x6x6 = 46,656 numbers If zero is ong the available digits but is excluded from the first place. 5x6x6x6x6x6=38,880 numbers
25
25
01.