Answer:
there is 60 families who drink both tea and coffle 710+230=940 that means that the remainder drink both tea and coffe
A simple rule to tell whether a graph is a function is to pretend to cut it vertically, if any cut intercept the graph twice, it is not a function. otherwise, it is.
In this case, the heart is not a function, because if you cut it up-down direction, your imaginary knife will touch the edge of the heart twice.
I hope this explanation helps.<span />
Answer:
The lateral area of the regular prism is 
Step-by-step explanation:
we know that
The lateral area of the regular prism is equal to
where
P is the perimeter of the base
h is the height of the prism
<em>Find the perimeter of base P</em>
-----> the regular pentagon has 5 equal sides
we have
substitute in the formula
A Rotation is a transformation of a figure by turning it around a given point.
If two line crosses, then the vertical angles are the angles opposite each other. In this way, these angles share the same vertex. So, the vertical angles are always equal. Therefore, in this problem, the right answers are:
1. ABE and CBD
Notice that the vertex is B, so these two angles share the same vertex. Accordingly, these two angles are vertical angles.
2. ABC and EBD
The same reasoning is applied here. The vertex is also B. Notice that <em>the angles CBD and ABD add up to 180 degrees. </em>
