Answer:
B, quadrat sampling
Step-by-step explanation:
Area of the pentagon: 342 cm2
Step-by-step explanation:
The figure of the pentagon is missing: find it in attachment.
The area of the pentagon can be seen as the area of 5 equal triangles, each of them having a base equal to the length of the side of the pentagon,
L = 14.1 cm
and the height of each triangle can be found by using Pythagorean's theorem:
The area of each of the 5 triangles is
Therefore, the area of the pentagon is 5 times this area:
Learn more about area of regular figures:
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If we start by 406.5 amount in 25/10/2017
And we have to pay car loan in 26/10/2017 equals 223.65
Then the balance will be 406.5-223.65= 182.85
Then we have the salary in 27/10/2017,
So the balance will become 182.85+ 1325.31= 1508.16
So the blanks are 182.85, 1508.16
Answer:
40
Step-by-step explanation:
For 16, check the first picture below.
for 29, check the second picture below.
now, notice, for 29, if we circumscribe a circle around the regular hexagon, each side of the hexagon fits in an equilateral triangle, namely a 60-60-60 triangle, and the apothem, is just an angle bisector of one of those triangles, like in the picture.
since the apothem is an angle bisector, it cuts the central angle in two 30-30 angles, making two 30-60-90 triangles.
using the 30-60-90 rule, and since we know the longer leg, apothem, is 6 units long, then we can get the shorter leg, or "a" in this case.
now, bearing in mind that each side in the hexagon is a+a or 2a long, the perimeter is 12a then, thus,
39)