Ended up getting the last one, i'm on a whole new practice lesson now...please help. giving brainliest.

Step-by-step explanation:

Triangle DOG is a right angle triangle.

From the given right angle triangle,

DG represents the hypotenuse of the right angle triangle.

With m∠G as the reference angle,

OG represents the adjacent side of the right angle triangle.

DO represents the opposite side of the right angle triangle.

To determine DG, we would apply

the sine trigonometric ratio.

Sin θ, = opposite side/hypotenuse. Therefore,

Sin 72 = 8.2/DG

DGSin72 = 8.2

DG = 8.2/Sin72 = 8.2/0.9551

DG = 8.59 to the nearest hundredth

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system