one class of 28 students has a ratio of 3 girls to 4 boys. if this ratio holds true for the entire 6th grade of 140 students, how many girls are there

Write the expression as a constant , a single trigonometric function, or a power of a trigonometric function. sin x cos x/ tan x

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

Which statements regarding efg are true? check all that apply.