8 A marine biologist is using an underwater drone to study a delicate coral reef. The linear equation 20y – 30x = -900 gives the drone's
elevation, y, in meters from the surface of the water after x seconds.
Graph the equation. What are the slope and y-intercept of the line?
What part of the graph represents this situation?

what's that

ou would have 12 of each

ummm seems that u didnt post the attachement !

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation: