Answer: 65 - $39 = $26 >> amount you save
26 / 65 = 0.4 = 40% >> discount rate
Step-by-step explanation:
Answer:
△ABC is congruent to △DEF
Step-by-step explanation:
△DEF is a reflection of △ABC across the y-axis. (Each x-coordinate is negated.)
_____
<em>Comment on presentation</em>
This would be much easier to answer if you would use a conventional representation of ordered pairs:
... (-1, -2) instead of "begin ordered pair negative 1 comma negative 2 end ordered pair"
First you have to have the absolute value isolated so the 2 has to be divided. Then set up the two cases and solve.
Area of ∆ = 1/2 times its base × height
=1/2 × 4 × 5 UNIT²
=10 unit²
Area of semicircle = πr²/2
= (3.14)(4)²/2
=25.12 unit²
Therefore area of figure= 10+25.12 unit² = 35.12 unit²
Hope it helps!
