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0:00

Kyle I.

Using Models Use the model given to answer the questions about the object or process being modeled. The distance $d$ (in mi) driven by a car traveling at a speed of $v$ miles per hour for $t$ hours is given by $$d=v t$$ If the car is driven at 70 milh for 3.5 $\mathrm{h}$ , how far has it traveled?

02:33

Taylor S.

Using Models Use the model given to answer the questions about the object or process being modeled. The power $P$ measured in horsepower (hp) needed to drive a certain ship at a speed of $s$ knots is modeled by $$P=0.06 s^{3}$$ (a) Find the power needed to drive the ship at 12 knots. (b) At what speed will a 7.5 -hp engine drive the ship?

00:57

Amy J.

The model $L=4 S$ gives the total number of legs that $S$ sheep have. Using this model, we find that 12 sheep have $L=$ __________ legs.

02:07

Suppose gas costs $\$ 3.50$ a gallon. We make a model for the cost $C$ of buying $x$ gallons of gas by writing the formula $C=$ _________.

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value off sign of 690 degrees. So what we need to do is we need to find the co terminal angle off 609 degrees. That's between zero and 360. So in order to do that, we need to subtract 690 minus 360 and that's going to give me 330. So 330 is the co terminal angle. So we need to find to find sign of 690 degrees. We need to find the sign of 330 degrees. So in order to do that, we're gonna come over here and look and right here is our sign of 330 degrees. And since we're looking for sign we're looking for are why value? So that means that it is negative one? Uh huh.

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