Answer:
B, C , F
Step-by-step explanation:
The age multiplied 55, so the shell grows at rate of 55mm per year
in fact if the age is 2 we have (55 x 2) = 55 + 55
if 3 = (55 x 3) = 55 + 55 + 55
and so on
When the turtle is hatched the shell is 37 mm in lenght.
In fact, if we substitute 0 to a, we have
s = (55 x 0) + 37
s = 37
when the turtle is 1 year old, the shell is 92 mm in length.
in fact if we substitu a with 1, we have
s = (55 x 1) + 37
s = 55 + 37
s = 92
Answer:
x = 17
Step-by-step explanation:
(x-3)2 = 7
Divide both sides by two
(<u>x-3)2</u> = <u>7</u>
2 2
x-3= 31/2
x= 31/2-3
x= 1/2 or 0.5
1:20
One centimeter is equivalent to twenty kilometers
Answer:
x = 18
Step-by-step explanation:
Given
+ 1 = 
+ 7 ( subtract 1 from both sides )
= + 6
Multiply through by 15 to clear the fractions
9x = 4x + 90 ( subtract 4x from both sides )
5x = 90 ( divide both sides by 5 )
x = 18
Answer:![\left[\begin{array}{ccc}-16&15\\-11&1\\15&-15&\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-16%2615%5C%5C-11%261%5C%5C15%26-15%26%5Cend%7Barray%7D%5Cright%5D)
Step-by-step explanation:
-3A + 2B
=![\left[\begin{array}{ccc}-12&3\\-15&-9\\21&-15\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-12%263%5C%5C-15%26-9%5C%5C21%26-15%5Cend%7Barray%7D%5Cright%5D)
![+ \left[\begin{array}{ccc}-4&12\\4&10\\-6&0\end{array}\right]](https://tex.z-dn.net/?f=%2B%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-4%2612%5C%5C4%2610%5C%5C-6%260%5Cend%7Barray%7D%5Cright%5D)
![=\left[\begin{array}{ccc}-16&15\\-11&1\\15&-15&\end{array}\right]](https://tex.z-dn.net/?f=%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-16%2615%5C%5C-11%261%5C%5C15%26-15%26%5Cend%7Barray%7D%5Cright%5D)
