Answer:
-19
Step-by-step explanation:
(AAA) Corresponding angles are congruent.
Therefore, the sides of the triangles are proportional:
cross multiply
use distributive property
subtract 100 from both sides
divide both sides by 100

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(SAS)
If two sides and the included angle of one triangle are equal to the corresponding sides and angle of another triangle, the triangles are congruent.
Therefore we have the equation:

The perimeter of △PQR:

Substitute the value of y to the expression:

-20 because after the the thermometer hits zero the more negative the temperature gets the colder it is
Answer:
A. 48
Step-by-step explanation:
to find the area of a parallelogram you multiply the base and height therefore 8x6= 48.
Answer:
x + 2y = 4
x − y = − 3
x − y =9 , x + y=6
x + y =4,
x− y =2
Step-by-step explanation: