1.
20= 2(x-4)
20/2= 2(x-4)/2
10= x-4
+4 . +4
14=x
Answer:
<em>P= 5.5 cm</em>
Step-by-step explanation:
<u>The Perimeter of Plane Shapes</u>
If we are given a plane shape, the perimeter is the measurement of the boundary of it. In case the shape is made of lines, the perimeter is the sum of the lengths of all of them.
We are given an irregular shape, we only need to add all the sides. But we don't have all the individual sides. Let's write the expression for the perimeter.
P=AE+ED+DC+CB+BA
We have: AE + DC = 1 1/5 cm, AB = 1 3/4 cm, DE = 1 1/4 cm, and BC = 1 3/10 cm. Note we don't have AE or DC, but we have their sum, so
P=AE+DC+ED+CB+BA
Recall that AB=BA, the order of the letters is not important. The perimeter is

We add the integer parts separate from the fractions

Now we use the common denominator (Least Common Multiple or LCM ) which is 20:

Operating

Simplifying


It is a polyhedron (i think)
The theoretical probability is what is expected based on using math. Since there is only one card that is number 1, and there are 400 possible outcomes, then the theoretical probability is 1/400 which is 0.25%.
Now find the experimental probability by find the number of times card 1 is picked, and the number of cards in total. 128/400 = 0.32 which is 32 percent.
The experimental probability is higher than the theoretical probability.
Hope this helps
Answer:
the area of the cover will be

Step-by-step explanation:
This problem bothers on the mensuration of flat shapes. oval/ellipse
the area of the ellipse is
.
Since we are multiplying two units of length together, our answer will be in units squared.
also the oval/ ellipse has to radius major and minor radius
Given data
minor radius = a= 10 feet
major radius= b= 26 feet
furthermore we want the cover to extend 1 feet
hence
minor radius = a= 11 feet
major radius= b= 27 feet


