Using the identity \sin^2\theta + \cos^2\theta=1sin 2
θ+cos
2
θ=1, find the value of \sin\thetasinθ, to the nearest hundredth, if \cos \theta=-0.5cosθ=−0.5 and \frac{\pi}{2}<\theta <\pi
2
π
​
<θ<π.

How do i do this? i don’t understand

Carl's candies has determined that a candy bar measuring 3 inches long has a z-score of +1 and a candy bar measuring 3.75 inches long has a z-score of +2. what is the standard deviation of the length of candy bars produced at carl's candies?

Billie holiday sells children's clothing for sara vaughn's toddler shop. baby blankets sell for $29.99 after a markup rate based on cost of 109%. find the cost and the markup.