Answer:
D. Subtraction property of equality
B. 6.5
Step-by-step explanation:
First blank:
The equation is x + 6.5 = 13.
To solve the equation, you want x alone on the left side, showing "x = some number." Since 6.5 is being added to x, you need to SUBTRACT 6.5. You must do the same operation to both sides of an equation, so you need to SUBTRACT 6.5 from both sides of the equation. What allows you to subtract the same number from both sides of an equation is the
<em>D. Subtraction property of equality </em>
Second blank:
Subtract 6.5 from both sides.
x + 6.5 = 13
x + 6.5 - 6.5 = 13 - 6.5
x = 6.5
<em>Answer: B. 6.5</em>
A regular polygon can be any shape with all equal side lengths and equal angle measurements.
So, yes. It can be a regular polygon.
Hope this helps! <3
Answer:
x = 5
y = 40°
Step-by-step explanation:
the median and the base of the large triangle are parallel so angle y has the same measure as the one labeled as 40°
the median is half the base of the large triangle, so 5x = 8x + 10/2
cross-multiply: 10x = 8x + 10
2x = 10
x = 5
