3y+21+8y
11y+21 is the answer
Answer:
-See below
Step-by.step explanation:
In the first column, on the left of the vertical line, you place the first digit of the number , then on the second row on you place the second digit.
So on the second row you have the entries:
1 | 2 2 4 representing 12, 12 and 14.
On the first row the 2 0ne digit numbers 3 and 8 are represented by
0 | 3 8.
Similarly the last 2 rows are:
2 | 0 1 3 6
3 | 4
Let "a", "b" and "с" be sides of the triangle ("с" is the longest side). The triangle will be:
right if a² + b² = c²
аcute if a² + b² > c²
obtuse if a² + b² < c²
We have a=10, b=14 and c=18
a² + b² = 10² + 14² = 100 + 196 = 296
and
c² = 18² = 324
296 < 324 ⇒ obtuse triangle.
Answer:
I think it's A
Step-by-step explanation:
