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3 years ago

Why do they use (x-1) instead of x, why?

Mathematics

1 answer:

Ipatiy [6.2K]3 years ago

5 0

If it was just x it would mean that they would be an invisible 1 in front of the x. if it's (x-1) it would be another number that it be subtracted from the x

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PLEASE HELP 15 POINTS

klasskru [66]

Answer:

x > 1/2

Step-by-step explanation:

1/2 is a fraction just so you know

Hope this help's and I wont be showing work due to it being a test that I have seen sorry.

7 0

3 years ago

Would (5^2) ^-3 x 5^4 be 1/25 or 1/50?

Oxana [17]

1/25

(5^2)^-3 x 5^4= 0.04 which is 1/25 in fraction form

7 0

3 years ago

Help in this plsssssssssss

abruzzese [7]

Answer:

Step-by-step explanation:

4 0

3 years ago

What is the arithmetic mean of the following numbers? 3, 5, 6, 7, 9, 6, 83,5,6,7,9,6,8

liubo4ka [24]

Answer:

oh wow that's giving me a headache, I dont understand

7 0

3 years ago

Read 2 more answers

Solve the system of equations

Solnce55 [7]

Hey, there!!

Given that:

y = 3x.........(i)

$y = {x}^{2} + 3x - 16.......(ii)$

Putting the value of y in equation (ii)

${3x}^{} = {x}^{2} + 3x - 16$

${x }^{2} - 16$ =0

$( {x)}^{2} - {4}^{2} = 0$

$(x + 4)(x - 4) = 0$

Therefore,

Either Or

(x+4)=0 (x-4)=0

x= -4 x= 4

so, x= (+ -)4

And if you wanna get value of y, just keep value of x in equation (i).

y= 3x

y= (3×4) or (3×-4)

y= 12 or -12

{As it is the quadratic equation it has two values. }

Hope it helps....

5 0

3 years ago