sub values of a, b and c into the equation.
(-3x2x2)-(-1x3)+(3x3x2)-(2x3x2)-(2x-1x3)
(-12)-(-3)+(18)-(12)-(-6)
=3
The sun is <span>333,000 bigger than the earth.
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3rd tile first, then 1st tile, 4th tile, 2nd tile.
Answer:
C. 647 square units
Step-by-step explanation:
To find the shaded area, subtract the area of the unshaded square from the area of the octagon.
<u>Area of the octagon</u>
where:
- n = number of sides
- l = length of one side
- a = apothem
Given:
Substitute the given values into the formula and solve for A:
<u>Area of the square</u>
<u>Area of the shaded region</u>
= area of the octagon - area of the square
= 815.88 - 169
= 646.88
= 647 square units (nearest square unit)
Answer:
Step-by-step explanation:
The area (A) of a rectangle is equal to the length (L) of one of its sides times its width (w)
(eq. 1)
And its perimeter can be calculated with the next formula:
P=2(L+w) (eq. 2)
Solving for <em>w </em>in eq. 1, and plugging it into eq. 2
(eq. 3)
(eq. 4)
We know that A=49m^2, plugging in this value into eq. 4, we finally get into the answer:
If the length of the rectangle is larger than its width:
We know that a length can't be negative value, so the only valid interval is L>7. The domine of P is then:
L>7