Which algebraic representation shows the effect that a reflection over the x-axis will have on the coordinates of a figure? Help me please

a
(x,-y)
b
(-x, y)
c
(-x,-y)
d
(-y, x)

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

can i know which language is this?

can someone me: the midsegment through the legs of an isosceles triangle is 4 in. find the sides of the triangle if its perimeter is 20 in. ,   and point g is the centroid of the right △abc with hypotenuse ab=18 in. find cg.