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2 years ago

Help- i'm not the best at math. I know i ask for help on this question but i haven't seen anything as an answer/explanation.

Mathematics

2 answers:

MAXImum [283]2 years ago

8 0

Answer:

They are diffrent because

Step-by-step explanation:

the symbol ≥ means greater than or equal too while the symbol > just means greater than

yarga [219]2 years ago

4 0

Different because the first symbol can mean greater than or equal to -2x, so your answer could be -2x, or more. second ones means greater than -2x.

Hope this helps :)

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In the Pythagorean Theorem, what<br> does the "a" stand for?<br> a2 + b2 = c2

Sophie [7]

Answer:

A theorem stating that the square of the length of the hypotenuse of a right triangle is equal to the sum of the squares of the lengths of the other sides. It is mathematically stated as c2 = a2 + b2, where c is the length of the hypotenuse and a and b the lengths of the other two sides.

Step-by-step explanation:

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3 years ago

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A bag of apples weighs 7 2/7

photoshop1234 [79]

Answer:

43.71428571

Step-by-step explanation:

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2 years ago

A biking track has a length of 0.8 miles mi. How long is this in feet ft?

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Answer:

4224

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3 years ago

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Twenty percent of what number is 9?

vampirchik [111]

Answer:

Step-by-step explanation:

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3 years ago

Please help me with this.

OLga [1]

Swapping rows alters the sign of the determinant:

$\begin{vmatrix} x & y & z \\ -8 & 2 & -12 \\ u & v & w \end{vmatrix} = - \begin{vmatrix} x & y & z \\ u & v & w \\ -8 & 2 & -12 \end{vmatrix}$

Multiplying a single row by a scalar scales the determinant by the same amount:

$\begin{vmatrix} x & y & z \\ u & v & w \\ -8 & 2 & -12 \end{vmatrix} = -2 \begin{vmatrix} x & y & z \\ u & v & w \\ 4 & -1 & 6 \end{vmatrix}$

Then

$\begin{vmatrix} x & y & z \\ -8 & 2 & -12 \\ u & v & w \end{vmatrix} = -(-2) \begin{vmatrix} x & y & z \\ u & v & w \\ 4 & -1 & 6 \end{vmatrix} = 2\times(-6) = \boxed{-12}$

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2 years ago