Answer:
$24.15
Step-by-step explanation:
Since we know its 35% of the original price we simply do 69×35% which equals 24.15. You can do it on your own work, or on a calculator to check.
You could also divide 69 by a hundred, which gives you .69 and multiply it by 35 which gives you the same answer
The area of the image would be four times (2 * 2) the area of the figure.
<h3>Transformation</h3>
Transformation is the movement of a point from its initial location to a new location. Types of transformation are <em>reflection, rotation, translation and dilation.</em>
Dilation is the increase or decrease in size of a figure by a factor k. If point A(x, y) is dilated by factor k, the new point is at A'(kx, ky).
If a figure is dilated by a scale factor of 2, the new image sides would be 2 times the figure sides.
Hence the area of the image would be four times (2 * 2) the area of the figure.
Find out more on transformation at: brainly.com/question/1548871
Answer: see proof below
<u>Step-by-step explanation:</u>
Given: A + B = C → A = C - B
→ B = C - A
Use the Double Angle Identity: cos 2A = 2 cos² A - 1
→ (cos 2A + 1)/2 = cos² A
Use Sum to Product Identity: cos A + cos B = 2 cos [(A + B)/2] · 2 cos [(A - B)/2]
Use Even/Odd Identity: cos (-A) = cos (A)
<u>Proof LHS → RHS:</u>
LHS: cos² A + cos² B + cos² C
LHS = RHS: 1 + 2 cos A · cos B · cos C = 1 + 2 cos A · cos B · cos C