3 years ago

A train leaves Ayr station everyday at 10:06 and arrives in Glasgow at 12:51. How long is the journey?

Mathematics

1 answer:

fenix001 [56]3 years ago

4 0

Answer: 2hours 45 minutes

Hope I'm being helpful...!!!

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Which of the following is an extraneous solution of the square root of -3x-2=x+2

yarga [219]

Answer:

x=-6 is an extraneous solution

Step-by-step explanation:

we have

$\sqrt{-3x-2} =x+2$

squared both sides

$-3x-2=(x+2)^2$

$-3x-2=x^2+4x+4$

$x^2+7x+6=0$

solve the quadratic equation by graphing

The solution is x=-6 and x=-1

see the attached figure

Verify each solution

substitute the value of x in the original expression

For x=-6

$\sqrt{-3(-6)-2} =-6+2$

$\sqrt{16} =-4$

$4=-4$ ----> is not true

Is an extraneous solution

For x=-1

$\sqrt{-3(-1)-2} =-1+2$

$\sqrt{1} =1$

$1=1$ ----> is true

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Step-by-step explanation:

Given 2 quantities that vary directly, then the graph must pass through the origin.

Nikiya's graph is the only one to do this ⇒ B

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What is the value of x in the equation 2(x+3) = 4(x-1)? O 1 02 0 3 O 5

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Step-by-step explanation:

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Technical improvement of a factory enabled it to produce 165 parts more in February than in January. In the two-month period, th

Romashka-Z-Leto [24]

X + x + 165 = 1315
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How to find next number in this sequence. 2,7,26,101,400?

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N(4)-1
n(4)-2

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8-1=7

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28-2=26
so the next number would be 1595

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