The number 299,792,458 in expanded form with exponents is:
(2 x 108) + (9 x 107) + (9 x 106) + (7 x 105) + (9 x 104) + (2 x 103) + (4 x 102) + (5 x 101) + (8 x 100).
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(3 x 100) + (7/101) + (5/102)
The correct answer is "expanded form".
I would say they are in standard form, but I would be more likely just to ask you to write a simplified number without using exponents. The terminology can vary, but the following example shows the usual names: 1,023 is in standard form. One thousand twenty-three is in word form. 1000 + 20 + 3 is in expanded form.
To write 841 in exponents in expanded form, you would express it as ( 841 = 29^2 ). This is because 29 multiplied by itself (29 x 29) equals 841. In exponential form, the base is 29 and the exponent is 2, representing the number of times the base is multiplied by itself.
86,000,000 in expanded form with exponents is written as (8 x 107) + (6 x 106) + (0 x 105) + (0 x 104) + (0 x 103) + (0 x 102) + (0 x 101) + (0 x 100).