Answer:
The value of cosθ is ![\frac{15}{17}](https://tex.z-dn.net/?f=%5Cfrac%7B15%7D%7B17%7D)
Step-by-step explanation:
It is given that an angle θ with the point (15, −8) on its terminating side.
Here x=adjacent side=15 units and y=opposite side =-8 units,
Using pythagoras theorem,
![\text{hypotenuse}^2=\text{base}^2+\text{opposite side}^2](https://tex.z-dn.net/?f=%5Ctext%7Bhypotenuse%7D%5E2%3D%5Ctext%7Bbase%7D%5E2%2B%5Ctext%7Bopposite%20side%7D%5E2)
![\text{hypotenuse}^2=(15)^2+(-8)^2](https://tex.z-dn.net/?f=%5Ctext%7Bhypotenuse%7D%5E2%3D%2815%29%5E2%2B%28-8%29%5E2)
![\text{hypotenuse}^2=225+64=289](https://tex.z-dn.net/?f=%5Ctext%7Bhypotenuse%7D%5E2%3D225%2B64%3D289)
![\text{hypotenuse}^2=17](https://tex.z-dn.net/?f=%5Ctext%7Bhypotenuse%7D%5E2%3D17)
Cosine is defined as
![\cos \theta=\frac{base}{hypotenuse}](https://tex.z-dn.net/?f=%5Ccos%20%5Ctheta%3D%5Cfrac%7Bbase%7D%7Bhypotenuse%7D)
![\cos \theta=\frac{15}{17}](https://tex.z-dn.net/?f=%5Ccos%20%5Ctheta%3D%5Cfrac%7B15%7D%7B17%7D)
Therefore the value of cosθ is
.
His 2 choices are 5x-15+4=18 and 5(x-3)=14
Answer : B
Explanation :
1 outcome) 2 reds
2 outcome) 2 blues
3 outcome) 1 red 1 blue
Answer:
8.2 million years
Step-by-step explanation:
The time can be found from ...
time = distance/speed
time = (47.0×10^4 m)/(5.7×10^-2 m/yr) = 8.2×10^6 yr
It will take about 8.2 million years for LA to have the same latitude as SF.
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The given numbers each have 2 significant digits, so the answer is appropriately rounded to 2 significant digits.
You have to get Y by its self first