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2 years ago

Which of the following is an extraneous solution of StartRoot negative 3 x minus 2 EndRoot = x + 2?

Mathematics

2 answers:

Studentka2010 [4]2 years ago

7 0

Answer:

x=-6

Step-by-step explanation:

deff fn [24]2 years ago

6 0

Answer:

x=-6

Step-by-step explanation:

just took the test

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Use 3.14 for it, and do not round your answer. Be sure to include the correct unit in your answer.

harina [27]

Answer:

Circumference=25.13 Area=50.27

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3 years ago

Find the surface area of the cylinder with a height of 11cm and 4cm as a base

Andru [333]

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2 years ago

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Jillian is trying to save water, so she reduces the size of her square grass lawn by 8 feet on each side the area of the smaller

horsena [70]

Answer: 20 feet by 20 feet.

Step-by-step explanation:

1. You know that $x$ is the original measure of one side. Since it is a square, all its sides are equal.

2. Therefore, to solve the problem you only need to solve for $x$ , as you can see below:

- You have that:

$(a-b)^{2}=a^{2}-2ab+b^{2}$

- Then, you obtain the following quadratic equation:

$(x-8)^{2} =144\\x^{2}-2(x)(8)+8^{2}=144\\x^{2}-16x-80=0$

- Apply the Quadratic formula to solve it:

$x=\frac{-b+/-\sqrt{b^{2}-4ac}}{2a}\\a=1\\b=-16\\c=-80$

- Then, you obtain:

$x_1=20\\x_2=-4$

3. The dimensions cannot be negative, therefore, the answer is: 20 feet by 20 feet.

3 0

3 years ago

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PLEASE HELP ME QUICKLY!!! Given that N:{1,2,3,5,8,13} and M:{−9,−8,−6,−4,−2,4}, which statements about N and M are true?

Lelechka [254]

Answer:

The intersection of N and M contains only those elements that are in both N and M.

The intersection of N and M is ϕ.

N∩M=∅

Step-by-step explanation:

Given

M = { 1, 2, 3, 5, 8, 13}

N = {-9, -8, -6, -4, -2, 4}

Now let us see each statement one by one.

The intersection of N and M contains only those elements that are in both N and M.

The statement is true because by definition intersection of two sets consists of common elements of both sets.

The intersection of N and M is ϕ.

The statement is true. As there is no common element in both sets.

The intersection of N and M is {−9,−8,−6,−4,−2}.

The statement is false because there is not common element in M and N.

N∪M=∅

The statement is false as the union consists of elements of both sets so it can't be empty.

N∩M=∅

True. Because no common element so intersection will be an empty set..

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2 years ago

Find the equation of the plane that passes through the point (4,3,−2)(4,3,−2) and contains the line x(t)=−4−4t,y(t)=−1+3t,z(t)=1

aniked [119]

We Need more info please us at brainly would like you to provide more information so we can answer your question right away thank you have a goodnight.

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2 years ago