I’m learning this right now actually! The first one is...pretend the 2 is small. x2+2-15 and the second answer is x2+7-30!
Answer: pool B has a greater circumference.
Step-by-step explanation:
The formula for determining the circumference if a circle is expressed as
Circumference = 2πr
Where
r represents the radius of the circle.
π is a constant whose value is 3.14
Pool A has a radius of 48 feet.
1 foot ≈ 0.305 meters
48 feet = 48 × 0.305 = 14.64 meters
The circumference of pool A is
2 × 3.14 × 14.64 = 91.94 meters
Pool B has a diameter of 29.46 meters. Radius = diameter/2
Radius of pool B = 29.46/2 = 14.73 meters
The circumference of pool B is
2 × 3.14 × 14.73 = 92.5 meters
Therefore, pool B has a greater circumference.
the square root of 5000 is 71 (rounded to the nearest)
Answer:
Slope = 0/-6
(Sorry for the bad handwriting)
Step-by-step answer:
This is a regular heptagon, means it has 7 <em>congruent</em> sides and 7 <em>congruent </em>vertex angles.
To work with polygons, there is a very important piece of information that you must know to solve the majority of related problems.
This is:
sum of exterior angles of polygons = 360 degrees.
If you don't remember the 360 degrees, think of the sum of exterior angles of an equilateral triangle, which is 3*(180-60)=3*120=360! It works!
For a regular heptagon, c = 360/7=51.43 degrees approx.
This means that each vertex angle measures
vertex angle = 180-c
So since 2d+the vertex angle = 360, we have
2d+(180-c)=360
solve for d:
2d=360-(180-c)=180+c
d=(180+c)/2=90+c/2=115.71 degrees. (approx.)
