3 years ago

Find the 67th term of the following arithmetic sequence. 6, 13, 20, 27,

Mathematics

1 answer:

lakkis [162]3 years ago

6 0

Answer:

you should find the relation between terms at first

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Write a quadratic equation x with the solution 4 and -9

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Step-by-step explanation:

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Please help me i need to solve for x

butalik [34]

Answer:

1.732i (complex form)

its weird, at high-school level complex shouldn't come, its considered mistake in the question. But the mathematically its all correct

Step-by-step explanation:

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2 years ago

What is the length of the third side of the window frame below? (Figure is not drawn to scale.) A picture of a right triangular

dmitriy555 [2]

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4 years ago

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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

<u><em>Verify each solution</em></u>

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

Is the solution

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3 years ago

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brilliants [131]

This one is my real answer 5{10+3]=40 The other one you can use for extra this one 5{10+25]=35

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