21 is nearly 25% of 80, so my estimate is 25%
Answer:
a
Step-by-step explanation:
sum always means only addition :D mark brainliest if right
1. (3,2)....because when finding the slope, we find the the slope of mn and the slope of op are negative reciprocals.
2. y = 5x - 7.....slope here is 5....perpendicular line has a negative reciprocal slope...so the slope has to be -1/5
y= mx + b
slope(m) = -1/5
(-10,3)...x = -10 and y = 3
now we sub and find b, the y int
3 = -1/5(-10) + b
3 = 2 + b
3 - 2= b
1 = b
so ur perpendicular equation is : y = -1/5x + 1
Answer: No. The triangles are not congruent because their side lengths are different.
Step-by-step explanation: