Answer: 59 degrees.
Step-by-step explanation: In all triangles, the angles add up to 180 degrees. In a right triangle, one of the angles measures 90 degrees. We know 2 of the angles of this triangle, 90 and 31. We can add them and subtract the result from 180 to get the measure of the 3rd angle. 90 + 31 = 121. 180 - 121 = 59.
1.) |8x|, x=9
|8(9)|
|72|=72
2.)|11x|, x=7
|11(7)|
|77|=77
Firstly, we can see that 2 goes into both terms of the expression, so we can factor it out like so: 2(x^2 - 16). Now we can spot a difference of two squares expression, as we have an x^2 minus a square number. Remember that the difference of two squares is in the format: (x+a) (x-a), and when expanded, gives you x^2-a^2. Using this information we square root 16 to find out the a value, so a=4. Therefore, your answer is B. 2(x+4)(x-4)
Answer:
The answer is option 1 , 2 and 3 or A , B and C
Step-by-step explanation:
