Rain trees are planted every 15 metres apart along a road pavement, Bougainvillea bushes are planted every 1.6 metres apart along the same pavement,
A rain tree and bougainvillea bush are planted at a common point A along the
pavement. Find the distance from A to the next point where a rain tree and
bougainvillea bush are planted together.

Please help with this question.

120 m

Step-by-step explanation:

LCM of 1.6 and 15 will give us the distance

Put 1,6 and 15 in same format:

LCM= 2*2*2*2*3*5*5/10= 120 m

So the next point is 120 m apart

13

step-by-step explanation:

169-1=168

168-3=165

165-5=160

160-7=153

153-9=144

144-11=133

133-13=120

120-15=105

105-17=88

88-19=69

69-21=48

48-23=25

25-25=0

since it took 13times to completely subtract it hence its square root is 13

the answer will be b x² +x-1

step-by-step explanation: