Answer:
-10/7
Step-by-step explanation:
(-5/7)/(2/4) = (-5/7)/(1/2) = (-5/7)*(2/1) = -10/7
Answer:
30
Step-by-step explanation:
The reflection over the y-axis has a rule:

From the diagram you can see that point W has coordinates (-7,2). Then using the rule given above, you can find the coordinates of point W':

Answer: (7,2).
The angles of the triangle are given as to have measures of 45°-45°-90°. This entails that the triangle is an isosceles triangle where the 2 legs of the triangle are of equal length. We calculate as follows:
c² = a² + b²
c² = 2a²
4² = 2a²
a = 2√2
Hope this answers the question.
Answer:
the answer is explained below (tap on the photo to view it fully)