Mathematics, 17.12.2021 01:00 krystlemiller11211

2. The population of a South American country is about 17,400,000. Which expression shows
this number in scientific notation?
A 1.7 x 107
C 1.8 x 107
B 1.74 x 107
D 17.4 x 106

Answers: 1

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Answers

ai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai aiai ai

Step-by-step explanation:

Answer from: Quest

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation:

Answer from: Quest

see explanation

step-by-step explanation:

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

remove brackets and collect like terms

13 - $\frac{3}{2}$ r - 1 + r

= 12 - $\frac{1}{2}$ r

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

remove brackets and collect like terms

= 7r - $\frac{3}{2}$ - $\frac{2}{3}$ - 6r

[- $\frac{3}{2}$ - $\frac{2}{3}$ = - $\frac{9}{6}$ - $\frac{4}{6}$ = - $\frac{13}{6}$ ]

= r - $\frac{13}{6}$

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2. The population of a South American country is about 17,400,000. Which expression shows
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