Hello,
x²+2x-3=0
==>x²+3x-x-3=0
==>x(x+3)-1(x+3)=0
==>(x+3)(x-1)=0
==>x=-3 or x=1
Sol={-3,1}
x²-4x-5=0
==>x²+x-5x-5=0
==>x(x+1)-5(x+1)=0
==>(x+1)(x-5)=0
==>x=-1 or x=5
Sol={-1,5}
Answer:
72y
Step-by-step explanation:
Multiplication can be done in any order
8x9=72
72 times y is 72y
Answer:
Step-by-step explanation:
<u>Given rectangle ABCD with coordinates:</u>
- A(1, 2), B(3, 2), C(3, 4), D(1, 4)
The rectangle is rotated 90 degrees clockwise.
<u>The rule for this rotation is:</u>
<u>Point B mapped to B' as per above rule:</u>
Answer:
Step-by-step explanation:
The second set. It contains (2,2) and (2,7), so it fails the vertical-line test.
angle T would be half the arc length of RQ
118/2 = 59
angle T = 59 degrees