Answer: 7/12!
Step-by-step explanation: 7/9 times 21/28 = 147/252. But you have to reduce it (simplify it) by dividing both the numerator and denominator by the greatest common factor and you get 7/12! Hope this helped.
The pair of triangles that can be <span>proved congruent by SSS theorem would be the triangles where the corresponding sides of each triangle being equal. From the images attached,
http://assets.openstudy.com/updates/attachments/50a1326be4b05517d536a6cf-geomentry-1352741498116-653....
http://assets.openstudy.com/updates/attachments/50a1326be4b05517d536a6cf-geomentry-1352741506883-653...
I think the correct answer would be the triangles in F.</span>
Answer:
{x,y} = {-2,2}
Step-by-step explanation:
Solve equation [2] for the variable y
7y = 7x + 28
y = x + 4
Plug this in for variable y in equation [1]
-8x + 4•(x +4) = 24
-4x = 8
Solve equation [1] for the variable x
4x = - 8
x = - 2
By now we know this much :
x = -2
y = x+4
Use the x value to solve for y
y = (-2)+4 = 2
Solution :
{x,y} = {-2,2}
and this intersects at only one point so your answer is A
Answer:
3rd option
Step-by-step explanation:
External angle is equal to the sum of the other 2 internal angles
2x=x-5+63
minus x from both sides
x=-5+63
x=58
x=58°
