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y=32.75176185196668
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y≔32.75176185196668
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y = -5 {(.8)} ^ {2} + 50 \cdot 0.898794046299167 {(.8)}
Evaluate trigonometric functions in the problem
y=-5\times 0.64+50\times 0.898794046299167\times 0.8
Calculate 0.8 to the power of 2 and get 0.64.
y=-3.2+50\times 0.898794046299167\times 0.8
Multiply -5 and 0.64 to get -3.2.
y=-3.2+44.93970231495835\times 0.8
Multiply 50 and 0.898794046299167 to get 44.93970231495835.
y=-3.2+35.95176185196668
Multiply 44.93970231495835 and 0.8 to get 35.95176185196668.
y=32.75176185196668
Add -3.2 and 35.95176185196668 to get 32.75176185196668.
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