Answer:
the first option
Step-by-step explanation:
a and d, b and c
<u>1</u>18.380 to the nearest hundred is <u>1</u>00
The 1 that I underlined represents the hundreds place of a number, and since the number in the tens place ex.) 2<u>1</u>2.31 is also a 1, then you round down to just 100.
ex.) round to the nearest hundred: 492.341 The answer to this would be 500, since the number in the tens place is a 9 so you round up to the next hundred.
Answer: B because a negative x negative is a positive, making them all higher than 18. The first inequailty means it can be equal to 18 and the second means -3x has to be greater, ex 19 or above
Step-by-step explanation:
Let the "other" angle be x. Then we can set up the equation: 2x + 60 + x = 180, because supplementary means that the angles add up to 180 degrees.
We get:
3x + 60 = 180
3x = 120
x = 40.
2(40) + 60 = 80 + 60 = 140.
So one angle is 140 degrees and the other angle is 40 degrees.
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Hope this helps!
==jding713==