Answer:
Step-by-step explanation:
Answer:
B. 7√10.
Step-by-step explanation:
√40 = √4√10 = 2√10
√90 = √9√10 = 3√10
So √40 + 2√10 + √90
= 2√10 + 2√10 + 3√10
= 7 √10.
<h3>
Explanation:</h3>
Class boundaries need to be defined so that a point on the boundary is unambiguously placed in one class or the other. With these boundaries, a value of 120 might be placed in the first or the second class—<em>we don't know which</em>.
_____
It is customary to define class boundaries between data values 60.5–120.5, for example, so that no data value can fall on the boundary, or as a semi-open interval [60, 120), so that a boundary value is clearly placed into a specific class.
Answer:
See attachment
Step-by-step explanation:
We want to show all values of x, for
on the number line.
By the definition of absolute value function:
Divide through the first inequality by -1 and reverse the sign.
On the number line, we can represent this as shown in attachment.