Hey there!
We can condense 18 to 9 times nine. However, 9 isn't prime, so we can break that down to 3 times 3 times two, all of which are prime.
Hopefully this helps!
Answer:
None of these answers would work. You may have typed some wrong perhaps?
It is an enlargement because the scale factor is 2 and a half
Answer:
<u>Diagram 1</u>
Draw a circle with a radius of 8 cm, ensuring you have clearly marked the center point (black circle with center C1)
Add a point on the circumference of the circle (point C2)
Draw a second circle of radius 8cm with point C2 as its center (red circle with center C2).
<u>Diagram 2</u>
The red circle intersects the black circle at two points (D and E).
Connect these 2 points of intersection with a line segment.
<u>Diagram 3</u>
Draw a third circle with center D and radius DE (shown in blue)
This circle intersects the black circle at point F.
<u>Diagram 4</u>
Draw 2 line segments to connect points D and E with point F - this is your equilateral triangle inside the circle!
C
Multiple a and c so 2x6=12
Find the factors of twelve that add to equal 7
The factors are four and three
Put them in parenthesis with a in front of x so
(2x+3)(2x+4)
Four can be divided by two so it turns into
(2x+3)(x+2)