8x-5=19
+5 on each side
8x=24
Divide by 8 on each side.
X=3
Answer:
Step-by-step explanation:
Answer:
key is 18
exit tag is 15
lock is 14
key*tag*lock = 3780
Step-by-step explanation:
54/3 is 18 so each key is 18
48-key = 30 so each tag is 15 since 15+15 = 30
18*15*14=3780
Answer:
Step-by-step explanation:
Differentiating, you get ...
... x·dy +y·dx +dx +dy = 2x·dx +2y·dy
Collecting terms gives ...
... dy(x +1 -2y) = dx(2x -y -1)
... dy/dx = -(2x -y -1)/(2y -x -1)
Answer:
68°
Step-by-step explanation:
The triangle containing the 79° angle is isosceles. That means the other base angle is also 79°. The central angle is ...
V = 180° -2(79°) = 22°
__
Angle X is the other acute angle in right triangle VWX, so has measure ...
X = 90° -22° = 68°
_____
<em>Additional comment</em>
A tangent makes a right angle with the radius to the point of tangency. W is the point of tangency, so angle VWX is a right angle.
