Answer:
4) D) 20
3) A) 16°
Step-by-step explanation:
4)
You must follow the correct order of operations.
13 - 2(1 - 15)/4 =
Do the subtraction inside the parentheses first.
= 13 - 2(-14)/4
Now multiply -2 by -14.
= 13 + 28/4
Divide 28 by 4.
= 13 + 7
Finally, add.
= 20
Answer: D) 20
3)
The sum of the measures of the angles of a triangle is 180°.
Let the unknown angle have measure x.
x + 41° + 123° = 180°
x + 164° = 180°
x = 16°
Answer:
A) 16°
