**Answer:**

c. m∠P'Q'R' = m∠PQR

**Step-by-step explanation:**

Rotation is a rigid transformation. It does not change lengths or angles.

#1 is irrational.

The other four are all rational.

**Answer:**

C

**Step-by-step explanation:**

Since "P" is -4, add **POSITIVE **6.5 to it. It makes **2.5 **

hope it helps :D

**Answer:**

12

**Step-by-step explanation:**

2y+8=3y-4

8=y-4

12=y

Answer:

(a) 64°

(b) Yes, the ladder will be safe the ingredients will be used.

Step-by-step explanation:

(a) Trigonometric function of Sine is the appropriate formula to use to solve this question. The formula is given as:

sin θ = Opposite/Hypotenuse

θ = Angle formed with the ground = ?

Opposite = 27 ft

Hypotenuse = 30 ft

Hence,

sin θ = 27 /30

θ = arc sin (27/30)

θ = 64.158067237°

Approximately to the nearest whole number = 64°

(b) From the above calculation, the angle the ladder makes with the ground is 64° and now we want that angle to be 70°

64° is less than 70=

64° < 70°

Hence, the ladder will be safe the way it is positioned.