If the straight lines represented by 5x²-8xy+py²=0 are perpendicular to each other, then find the value of p. Also, find the equations of straight lines represented by 5x²-8xy+(p+8)y²=0​

Ms. sutton recorded the word counts and scores of the top ten essays in a timed writing contest. the table shows her data. how does the word count of an essay relate to its score in the contest? word count tends to decrease as the score decreases. word count tends to increase as the score decreases. word count tends to remain constant as the score decreases. word count has no apparent relationship to the score of the essay.

Answer this question, only if you know the answer. 30 points and brainliest!

Si la base de un triángulo isósceles mide 70 m y el ángulo opuesto a ésta mide 58°; entonces ¿cuánto mide la altura de dicho triángulo? a) 21.87 m. b) 40.01 m. c) 43.74 m. d) 63.14 m.