if a number is a prime number, it has no two equal factors that can produce a product of such a number, and therefore such value is an irrational number.
now, the last one, 5 is being multiplied by an irrational, and therefore the product will yield the same irrational, just a bit larger.
so, the only rational there is the ±6 really.
Answer:
x=61 -> Figure A
x=27 -> Figure B
x=12 -> Figure C
Step-by-step explanation:
<u>For A:</u>
<u>x=61</u> because the line going through the shape cuts in angle into 2 congruent angles
<u>For B:</u>
The corner adds up to 90 because it a rectangle, and rectangles only have right angles.
So: 2x+10+x-1=90
Solve.
3x+9=90
3x=81
<u>x=27</u>
<u>For C:</u>
The two given angles should add up to 90.
4x+10+2x+8=90
Solve.
6x+18=90
6x=72
<u>x=12</u>
I don’t know if this is right but the way I did it I got 7.5
Answer:
it's 5
Step-by-step explanation:
you should use pythagoras theorem