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2 years ago

Dom has £n. he spends £20. he then looks at a coat that is £100 which is 5 time what he now has left.

Mathematics

2 answers:

Nadusha1986 [10]2 years ago

6 0

Answer:

120

Step-by-step explanation:

He had 40 to start because he spent 20 and 100 is 5 times how much he has left.

Inessa [10]2 years ago

3 0

Answer:

Yeah, we can't see the problem.

Step-by-step explanation:

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saw5 [17]

Answer:

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Step-by-step explanation:

15-3n=21

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2 years ago

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If f(x) = 2x2 + 1 and g(x) = x2 – 7, find (f – g)(x).

nadya68 [22]

Answer: The required value is

$(f-g)(x)=x^2+8.$

Step-by-step explanation: The given functions are:

$f(x)=2x^2+1,\\\\g(x)=x^2-7.$

We are given to find the value of $(f-g)(x).$

We know that, if s(x) and t(x) are any two functions of a variable x, then we have

$(s-t)(x)=s(x)-t(x).$

Therefore, we have

$(f-g)(x)\\\\=f(x)-g(x)\\\\=(2x^2+1)-(x^2-7)\\\\=2x^2+1-x^2+7\\\\=x^2+8.$

Thus, the required value is

$(f-g)(x)=x^2+8.$

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2 years ago

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4vir4ik [10]

Answer:

calm down rosie.... it's okay to not be too good at math... take Justin Timberlake. in the show "Friends with Benefits" he's horrible at math but good at life. so don't worry too much. You are still a good person.. even if you're bad at math :P

Step-by-step explanation:

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2 years ago

What do the differences between the points (as shown on the graph) represent?

pishuonlain [190]

Answer:

They represent the rise and run of the graph.

Step-by-step explanation:

The difference between the x-axis of the points represents the "run" of the graph (or how much you should run along x-axis to get to the next point.)

The difference between the y-axis of of the points represents the "rise" of the graph (or how much you should rise up the y-xis to get to the next point).

The ratio of rise to run is the slope of the graph, which tells us how many steps should we take on the y-axis for every step we move forward on the x-axis.

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3 years ago