Solve the equation 4y^2=15+7y and hence solve the equation 4(9^x)=15+7(3^x)

See attachment below and find the equivalent of tan(∠qsr)

The coordinates of vortex a’ are (8,4) (-4,2) (4,-,4) the coordinates of vortex b’ are (6,6)(12,-,12)(12,12) the coordinates of vortex c’ are(-2,,12)(4,12)(12,-4)

The average length of a king cobra is 3.7 m. the record length is 1.88 m longer than the average. how long is the record holder?