To factorise it start with putting the xs in brackets.
(x )(x )
Then you must find 2 numbers which multiply to +81 and sum to -18.
81 is the product of 9×9 or -9×-9.
9+9=+18
-9+-9=-18
So they two numbers must be -9.
So factorised it is (x-9)(x-9) or (x-9)^2
Discount amount: $160.20
Sale price: $729.80
Answer:
D) center
Step-by-step explanation:
i am taking the test rn and i got it correct just now
-chilly
Answer: See below
Step-by-step explanation:
- Both will use the straight edge to make segments and use the compass to take measurements.
- They will draw a line with a straight edge and will find a starting point, then with a compass:
- Annie will take the measurement of the segment and, from the starting point of the line, will put in the other point to obtain the congruent segment.
- But in Jaymie's case, she will need to do a little more work with a compass because to build congruent angles, she will need to make a semi-circle in the original angle and transfer this measurement to the new line to construct the angle.
2:3:5
2x+3x+5x=180
10x=180
x=18
2x=36
3x=54
5x=90
