# Precalculus

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Juana and Diego Gonzales, ages six and four respectively, own a strong and stubborn puppy named Corporal. It is so hard to take Corporal for a walk that they devise a scheme to use two leashes. If Juana and Diego pull with forces of 23 lb and 27 lb at the angles shown in the figure (Juana at 18 degrees from the horizontal, Diego at 15 degrees the other side from the horizontal), how hard is Corporal pulling if the puppy holds the children at a standstill?

• Precalculus -

23 cos 18 + 27 cos 15

• Precalculus -

Thank you!

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