4 in 10 chance that it will be a male XY gender yes yes no
Answer:
coordinate points
Step-by-step explanation:
variables: a symbol for a value we don't know yet. ex: x or y
numbers: I hope you know what they are cuz i dunno how to describe it ex: 2
coordinate points: a set of numbers that show position on a graph ex: (2,4)
operations: adding, subtracting, multiplying, dividing
<span><u><em>The correct answers are:</em></u>
a line of symmetry will connect a vertex and a midpoint of an opposite side
it has 7-fold symmetry.
<u><em>Explanation</em></u><span><u><em>: </em></u>
A line of symmetry is a line that we can use to <u>"fold"</u> a figure in half. In order to do this, we will "fold" the figure from a vertex to the middle of the side opposite the vertex.
Since there are 7 vertices, there will be 7 lines of reflection.</span></span>
Answer:
Jeff's ribbon is, feet long
Step-by-step explanation:
Let J represents the length of Jeff ribbon and B represents the length of Bill ribbon.
As per the condition:
Jeff's ribbon is 3/7 the length of Bill's ribbon.
⇒ ......[1]
It is also given that: if both ribbons combined are 2 feet long.
⇒J + B = 2 ......[2]
Substitute the equation [1] into [2] we get;
Simplify:
Multiply both sides by we get;
ribbons
Substitute the value of B in equation [1] we have;
feet
Therefore, Jeff's ribbon is, feet long