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melisa1 [442]
3 years ago
14

Rewrite the expression using addition -17.9 - 4.2

Mathematics
2 answers:
baherus [9]3 years ago
8 0
17.9 +4.2 = 22.1 expression using addition
Alexeev081 [22]3 years ago
5 0

You can say -17.9+(-4.2)

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Perform the following operation, and report the answer to the correct number of significant figures. 3.47 x 6.7
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3.47 = 3 sig. figs.

6.7 = 2 sig. figs.

Since these two numbers are being multiplied, you would round to the smallest number of sig. figs. of the two. In this case, it would be 2 significant figures.

3.47 * 6.7 = 23.249 (dont forget to round to 2 sig. figs. ) --> 23

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\bf \stackrel{\textit{perpendicular lines have \underline{negative reciprocal} slopes}} {\stackrel{slope}{-\cfrac{7}{2}}\qquad \qquad \qquad \stackrel{reciprocal}{-\cfrac{2}{7}}\qquad \stackrel{negative~reciprocal}{\cfrac{2}{7}}}

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