Answer:
x = 8
Step-by-step explanation:
If the number 212x5 is a multiple of 3, the sum of the digits needs to be a multiple of 3, so we have:
2 + 1 + 2 + x + 5 = 10 + x
The value of x can be 2, 5 or 8
If the number is a multiple of 11, we have to calculate the first number minus the second, plus the third, minus the fourth... and so on, and the result needs to be a multiple of 11. So we have:
2 - 1 + 2 - x + 5 = 8 - x
x needs to be 8, so we have 8 - 8 = 0, that is a multiple of 11.
So the value of x is 8.
Answer: Scalene means "a triangle that has three unequal sides"
therefore it is D
Answer:
2. reflect parrellelogram ABCD across the x-axis and dilate the result by a scale factor of two centered at the orgigin
Step-by-step explanation:
to correctly map the parallelograms together you need to dialate the shape, because we already know that its two times bigger
To solve this problem you must apply the proccedure shown below:
You must switch the variables, and then, you must solve for 
, as following:
Therefore, as you can see, the answer is: 
<span>1/6 (12C + 24) + 1/3(12 c - 3) =
12 c/ 6 + 4 +12c / 3 - 1 =
2c +4 + 4 c -1
6c +3 </span>
