Acalculator that reads 528.
the calculator shows the result that luiza got after evaluating the expression 9 × (52 + 18) + 42. she checked her work by rounding all of the values to the nearest ten and comparing it to the calculator result. which is true regarding her estimate and the accuracy of her calculator result?

the estimated result is 560, which suggests the calculator is correct.
the estimated result is 740, which suggests the calculator is incorrect.
the estimated result is 840, which suggests the calculator is incorrect.
the estimated result is 1,100, which suggests the calculator is incorrect.

whatvare the choices

step-by-step explanation:

the degrees would remain the same ( the number to the left of the decimal point.

the multiply the decimal by 60 to get the minutes and use the numbers to the left of the decimal point.

then multiply the decimal portion of that by 60 for the seconds and round off as needed.

39 .956652

the 39 remains the degrees.

the minutes = 0.956652 x 60 = 57.39912

the minutes = 57

the seconds = 0.39912 x 60 = 23.95 = 24 ( rounded to nearest tenth)

so 39.956652 = 39 degrees, 57 minutes and 24 seconds

-75.159809

the -75 remains the degrees

the minutes = 0.159809 x 60 = 9.58854

the minutes = 9

the seconds = 0.58854 x 60 = 35.31, rounded to nearest tenth = 35.3 seconds

so -75.159809 = -75 degrees, 9 minutes and 35.3 seconds.

the first coordinate is north or south, since it it positive it is north.

the second number is east or west, because it is negative it is west.

39 degrees, 57 minutes and 24 seconds n

-75 degrees, 9 minutes and 35.3 seconds w

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step-by-step explanation:

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