Delete as this is the wrong answer. Made a typo in the answer.
Answer:
x = 
y = 24
Step-by-step explanation:
-3x - 8y = 20 .... (1)
-5x + y = 19 .... (2)
What we can do is take the (2) equation
-5x + y = 19
and solve for y by adding 5x to both sides
y = 24
now that we have y we substitute it in for y in equation (1)
-3x - 8(24) = 20
-3x - 192 = 20
we want to solve for x so we need to get its self.
add 192 to both sides
-3x = 212
now we divide both sides by -3. It's going to be a fraction.
x = 
Since ur using r as a variable the answer is r = 7.
Answer:
113.04 cm squared
Step-by-step explanation:
the area of a circle is:
A=πr2
so as you written before the pi must be 3.14
and the radius is the diameter/2(12/2=6)
A= 3.14 x 6 x 6
A= 113.04 cm squared
Answer:
3x+y=43
Step-by-step explanation:
because
ML~=SR
43=43