According to rounding rules for addition, the sum of 27.1, 34.538, and 37.68 is

According to rounding rules for addition, the sum of 27.1, 34.538, and 37.68 is

We can give two answers here as its not mentioned how much to be rounded off.

According to the rule, if the digit to be rounded is less than 5, then we do not change the "rounding digit" but change all digits to the right of the "rounding digit" to zero.

So, this sum will be rounded to 100, if it has to be rounded in nearest whole number as per rule.

Otherwise, we can also round up to tenth place to 99.3

If the hundredth place is 5 or greater than 5 then we increase the tenth place by 1.

Here, the hundredth place is 1, so no changes to the tenth place is applied.

which expression can be used to convert 80 us dollars (usd) to australian dollars (aud)?

1 usd = 1.0343 aud

1 aud = 0.9668 usd

step-by-step explanation:

sorry just need the points

∠1≅∠2 by the alternate exterior angles theorem.

step-by-step explanation:

given, a ∥ b and ∠1 ≅ ∠3 .we have to prove that e ∥ f

we know that ∠1≅∠3 and that a || b because they are given. we see that by the alternate exterior angles theorem. therefore, ∠2≅∠3 by the transitive property. so, we can conclude that e || f by the converse alternate exterior angles theorem.

we have to fill the missing statement.

transitivity property states that if a = b and b = c, then a = c.

now, given ∠1≅∠3 and by transitivity property ∠2≅∠3 .

hence, to apply transitivity property one angle must be common which is not in result after applying this property which is ∠1.

the only options in which ∠1 is present are ∠1 and ∠2, ∠1 and ∠4

∠1 and ∠4 is not possible ∵ after applying transitivity we didn't get ∠4.

hence, the missing statement is ∠1≅∠2.

so, ∠1≅∠2 by the alternate exterior angles theorem.