Emma throws an object upward from a hill that is 64 feet high. the object has an initial velocity of 48 feet per second. the function y = -16x2 + 48x + 64 represents the height of the object, y, in terms of the time elapsed after the object is thrown, x.

The correct options are B and D.

Step-by-step explanation:

Consider the provided function

The provided function is a quadratic function.

A polynomial function with highest exponent equal to 1 is known as linear functions. Nonlinear functions are all other functions.

The provided function has the exponent 2 which is greater than 1.

Thus, the provided function is a nonlinear function.

Also, the rate of change of a quadratic function does not remain the same.

Therefore, the correct options are B and D.

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47

175

step-by-step explanation:

2 inches x 10 miles = 200 miles - 3 inches = 175