Answer:
D 21
Step-by-step explanation: x/7 = 3
isolate x by multiplyig both sides by 7: (7)(x/7) = (3)(7)
x = 21
<span>The angles of the figure are complementary, that is, the sum between them is equal to 90º.
Solving:
54º + 4xº = 90º
4xº = 90 - 54º
4xº = 36º
</span>


<span>
We have:
54º + 4.xº = 90º
54º + 4.(9º) = 90º
54º + 36º = 90º
90º = 90º (TRUE)
Answer:
</span><span>
The value of the variable is 9º</span>
Answer:
The fourth
Step-by-step explanation:
It has 4 terms
Answer:
C. each result is equally likely to occur
Step-by-step explanation:
there's a 50% chance it'll either be heads or tails because there is only two probable options - heads or tails.