Answer:
a = 1
b = -1
c = -2
Step-by-step explanation:
We reorder the equation in such way that let us see the usual
ax² + bx + c = 0
Then the original quation is:
-2 = - x + x² - 4 ⇒ 0 = 2 - x + x² - 4 ⇒ x² - x - 2 = 0
Now we are able by simply inspection to identify a, b . c comparing our equation with the general equation so :
a = 1
b = -1
c = -2
Answer:
x=5
Step-by-step explanation:
Since both of these length are equal, 6x+4=8x-6, 2x=10, x=5
3 + [_] ÷ 7 = 9
[_] ÷ 7 = 9 - 3
[_] = 6 x 7
[_] = 42
to check, just put 42 in the empty place and solve
Answer:
RS, RT and ST
Step-by-step explanation:
A tangent to a circle is a line that meets a circle at only one point.
AP is the radius and XT is not even a line.
Hope it helps!
Answer:
x=5
y=0
Step-by-step explanation: -7y + 16x - 80 = 0
x=5
-9y + 4x - 20 = 0
y=0
