Answer:
x=9
Step-by-step explanation:
-54/x= -6
Multiply each side by x
-54/x *x= -6*x
-54= -6x
Divide each side by -6
-54/-6 = -6x/-6
9 =x
The arc measure of AD in degrees is 43 degrees.
<u>Step-by-step explanation</u>:
- The angle measure of the straight line is 180°.
- ∠APD + ∠DPC + ∠CPB = 180°
⇒ (7x+1)° + 90° + (9x-7)° = 180°
⇒ 16x + 84° = 180°
⇒ 16x = 96°
⇒ x = 96/16
x = 6
Substitute x=6 for angle ∠APD = (7x+1)°
∠APD = 7(6)+1 = 43°
The arc measure of AD in degrees = 43 degrees.
<h2>
The diagonal is increasing at 1.8 cm/minute.</h2>
Step-by-step explanation:
Let l be one side,w be other side and s be diagonal.
We have
s² = l² + w²
We have
l = 8 cm
w = 6 cm
s² = l² + w²
s² = 8² + 6²
s² = 100
s = 10 cm
Taking derivative with respect to time in s² = l² + w²

The diagonal is increasing at 1.8 cm/minute.
To find coterminal angles for an angle, β, given in radians use the following formula:
coterminal angle = β + 2πk
where k is an integer {..., -3, -2, -1, 0, 1, 2, 3, ...}
Negative Coterminal Angle: k = -1
NCA = π/5 + 2π(-1)
= -9π/5
Positive Coterminal Angle: k = 1
PCA = π/5 + 2π(1)
= 11π/5
The following answers are just one of many possible answer... you have infinite number of choices for k.

Answer:
I would say increasing
Step-by-step explanation:
prove me wrong