If sinx = 0.3, and x is in quadrant iii, then what is the value of cosx?

Probably the question should say , as is negative for .

In that case, recall that

Because lies in the third quadrant, we expect to also be negative, so we take the negative root above. Then

no, the equation would be invalid since they are both not equal.

step-by-step explanation:

here you got

4y-6+4y 2-9

first, you would simplify the equation on the form.

4y-6+4y 2-9

then, move all the terms that contains a y to the left and all the other terms to the right.

+4y-4y+-9-6

finally, you will simplify the left and the right side of the equation.

y=-3