The two triangles with the given perimeter is attached .
Perimeter is the sum of all sides.
For the first triangle , sies are 2a,2a and b.
So the perimeter is
![Perimeter = 2a+2a+b \\ Perimeter = 4a+b](https://tex.z-dn.net/?f=Perimeter%20%3D%202a%2B2a%2Bb%0A%5C%5C%0APerimeter%20%3D%204a%2Bb)
For the second triangle, sides are a,a, and 2a+b. Therefore perimeter is
![Perimeter = a+ a + 2a+b \\ Perimeter = 4a+b](https://tex.z-dn.net/?f=Perimeter%20%3D%20a%2B%20a%20%2B%202a%2Bb%0A%5C%5C%0APerimeter%20%3D%204a%2Bb)
So for both triangles, perimeter is
![4a+b](https://tex.z-dn.net/?f=4a%2Bb)
Answer:
-27
Step-by-step explanation:
a = 7 and c = -4
- a + 5 c
- ( 7 ) + 5 ( - 4 )
- 7 - 20
- 27
Answer:
SA = 1099 square inches.
Step-by-step explanation:
Just plug into the formula
SA = 2pir^2 + 2pi r h where pi = 3.14, r = 5 and h = 30
SA = 2 (3.14) (5^2) + 2 (3.14)(5)(30)
SA = 157 + 942
SA = 1099 square inches.
Step-by-step explanation:
![\frac{ {13}^{6} \div {13}^{8} \times {13}^{ - 4} }{ {13}^{ - 2} }](https://tex.z-dn.net/?f=%20%5Cfrac%7B%20%7B13%7D%5E%7B6%7D%20%20%5Cdiv%20%20%7B13%7D%5E%7B8%7D%20%20%5Ctimes%20%20%7B13%7D%5E%7B%20-%204%7D%20%7D%7B%20%7B13%7D%5E%7B%20-%202%7D%20%7D%20)
You need to remember the properties of exponents: multiplication adds the exponents, division subtracts the exponents.
If you multiply two powers with the same base, the result will be the base to the sum of the powers.
If you divide two powers with the same base, the result will be the base to the difference of the powers.
In your case you will this:
![{13}^{6 - 8 + ( - 4) - ( - 2)}](https://tex.z-dn.net/?f=%20%7B13%7D%5E%7B6%20-%208%20%2B%20%28%20-%204%29%20-%20%28%20-%202%29%7D%20)
That is:
![{13}^{ - 4}](https://tex.z-dn.net/?f=%20%7B13%7D%5E%7B%20-%204%7D%20)
Or:
![\frac{1}{ {13}^{4} }](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B%20%7B13%7D%5E%7B4%7D%20%7D%20)