Answer:
Step-by-step explanation:
El área del rectángulo se halla a través de la siguiente fórmula: (The area of the rectangle is obtained by the following formula:)
Donde el área y 
se miden en centímetros cuadrados y centímetros, respectivamente. (Where area and are measured in square centimeters and centimeters, respectively)
Ahora, se reemplaza y se encuentra el valor numérico del área: (Now, is substituted and numerical value of area is finally determined:)
![A = [40\,cm - 2\cdot (4\,cm)]\cdot (4\,cm)](https://tex.z-dn.net/?f=A%20%3D%20%5B40%5C%2Ccm%20-%202%5Ccdot%20%284%5C%2Ccm%29%5D%5Ccdot%20%284%5C%2Ccm%29)
Umm, I don't feel like typing (too lazy and tired to do that lol) so I will attach a written file.
BTW-
Radius is HALF the Diameter.
Diameter is that straight line that goes across the center of the circle.
Radius is basically a line from the center of the circle to any of the side of the circle.
Circumference is basically the perimeter of the circle, or the border or it. It is the Diameter times pi (it said to use 3.14 for pi). It can also be 2 times the Radius times pi (3.14) (since Radius is half the Diameter).
Area is the region inside the circle. Area is the Radius squared (to the power of 2, whatever) times pi (simplified as 3.14).
Okie, now the answers.
^^^Too lazy to put the unit lol.
Answer:
the exponent is 7 why does it make me put 20 charects
Answer:
99 pages.
Step-by-step explanation:
First divide 165 by 5, to get 1/5th of the book. The answer is 33
Now, multiply 33 by 3 in order to get 3/5ths of the book.
You get 99 pages.
Answer:
Martina is 53 inches tall.
Step-by-step explanation:
In order to write an expression that relates the siblings heights we need to attribute variables to each brother. First we will call Martina's height as "m", then we can call her little brother's height as "b". The problem states that Martina's height is 3 inches less than twice the height of her brother so we have:
m = 2*b - 3
Then the problem gives us the height of her brother that is 28 inches tall, so b = 28. We can now compute Martina's height:
m = 2*28 - 3 = 56 - 3 = 53 inches.
