XWY=20 XWZ=40, XWY is half of XWZ, which means ZWY =20. Now you can say that the triangles are congruent through the AAS postulate, so you know that YZ-16 because of CPCTC

5 0

3 years ago

22-28d = - 12 ??? geometry is hard

yarga [219]

There's not much you can or should do here other than to "solve for d."

Subtract 22 from both sides. Then 22 - 22 - 28d = -12 - 22 = -34

Then -28d = -34, and d = -28 / (-34) = + 14/17 (answer)

3 0

3 years ago

I need help I put 30 points for whoever helps me

artcher [175]

Answer:

$y=-x+1$

Step-by-step explanation:

Slope can be represented as rise over run (change y-values over change in x-values). Since the y-value is changing by -2 every time the x-value is changing by 2, the slope of the line must be $\frac{-2}{2}=-1$ .

In slope-intercept form $y=mx+b$ , $m$ represents the slope of the line, $b$ represents the y-intercept, and $(x, y)$ represent the coordinates of any point the line passes through.

To find $b$ , substitute $m=-1$ and any point the line passes through.

Using (1, 0) from the table:

$0=-1(1)+b,\\0=-1+b,\\b=1$

Thus, the equation of this line is $\boxed{y=-x+1}$

5 0

3 years ago