Answer:
A
Step-by-step explanation:
Using PEMDAS you start with multiplication first, so -2 multiplied by -6, which is positive 12. Then you go from left to right, so 4 +-3, or 4-3, which is 1. Then 1-12 is -11. So your final answer is A, -11.
For this case we must simplify the following expression:
We eliminate the parentheses taking into account that:
So, we have:
We add similar terms taking into account that:
Different signs are subtracted and the sign of the major is placed:
Answer:
D) because the first equation*3-the second equation*;
the left side=0, the right side = 36
Answer:
x = 10
Step-by-step explanation:
Since the triangle is right use the sine ratio to find x
sin30° = =
cross- multiply
x × sin30° = 5 ( sin30° = 0.5 )
0.5x = 5 ( divide both sides by 0.5 )
x = 10