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andrew11 [14]
3 years ago
15

Please help asap factorise fully: (x^2 -1)-(x-1)^2

Mathematics
1 answer:
Vladimir [108]3 years ago
5 0

Step-by-step explanation:

2x-2 I think it is the answer

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A taxi journey of 30km cost $3,600.At the same rate per kilometer .A what would be the cost of travelling 25k.B.How far could yo
madreJ [45]

Answer:

The cost of traveling 25km would be $3000.

You can travel 35 km for $4200.

Step-by-step explanation:

Consider the provided information.

For 30km cost $3,600.

30 km = $3600

Divide both sides by 30.

\frac{30}{30}\text{ km}=\frac{3600}{30}

1 \text{ km} =120 ....(1)

The cost of 1 km is $120.

Part (A) what would be the cost of traveling 25km

Multiply both the sides of equation 1 by 25.

25 km = 3000

Hence, the cost of traveling 25km would be $3000.

Part(B) How far could you travel for $4,200?

Divide 4200 by 120.

\frac{4200}{120}=35

Hence, you can travel 35 km for $4200.

7 0
3 years ago
Can someone help me with this math question. Will mark Brainliest. I posted a picture of the question. ​
Romashka-Z-Leto [24]

Answer:

Step-by-step explanation:

∠2= ∠4                { alternate interior angles}

∠2= 65

∠1 + ∠2 = 180    {linear pair}

∠1 + 65 = 180

∠1 = 180- 65

∠1 = 115

4 0
3 years ago
A window cleaner rises 36 feet up the side of a building, then descends 17 feet. What is his final position?
monitta

Answer:

19

Step-by-step:

+36 - 17 = 19

6 0
3 years ago
Read 2 more answers
1.5x - 1.9y = - 29 , x - 0.9 = 4.5
Katyanochek1 [597]
X-0.9 = 4.5
+0.9 +0.9
x = 5.4
( to get rid of the -0.9 beside the x, u have to do the opposite operation on both sides. if its -0.9, u have to add 0.9 on both sides)

not sure about the first one.
3 0
3 years ago
pressure equals force per unit of area. if 60 lbs of force were exerted on a 3 square inch surface, what was the pressure in pou
Anvisha [2.4K]

Answer:

20 pounds / in^2

Step-by-step explanation:

Presssure = Force in pounds / Area in square inches.

Force: 60 pounds (given)

Area: 3 in^2 (given

Pressure = 60/3 = 20 pounds / square in

3 0
4 years ago
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