There is a positive correlation between the number of times the striped ground cricket chirps per second and the temperature in degrees fahrenheit. if a scatter plot is made with the number of chirps on the horizontal axis and the trend line is found to be y = 3x + 25, then what would you predict the temperature in degrees fahrenheit to be when there are 20 chirps per second?

-1.6
85
135

85 °F

Step-by-step explanation:

The trend line equation is given by  

Where,

We want to find the temperature when the number of chirps is 20. So we plug in 20 into and figure out :

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

answer:

c. the third graph