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2 years ago

Round fraction as a decimal round three decimals place 6/13

Mathematics

1 answer:

frez [133]2 years ago

6 0

Round fraction as a decimal: 6/13=.462 that's the answer

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I need help on this question.

blondinia [14]

Let's go:

The centroid of a triangle is the point of intersection of its medians. The distance from de centroid to some vertex of triangle to which it belongs is equal to 2/3 of the length of its median:

BM = 18/3 = 6

I hope I helped you.

6 0

3 years ago

For this exercise assume that the matrices are all n x n. Each part of this exercise is an implication of the form "If "statemen

jarptica [38.1K]

Answer:

True

False

Step-by-step explanation:

TRUE

If the equation Ax = 0 has only the trivial solution, then A is row equivalent to the n × n identity matrix

Here's why

If the equation Ax = 0 has only the trivial solution the determinant of the matrix is NOT 0 and the matrix is invertible therefore it is row equivalent to the nxn identity matrix.

TRUE

If the columns of A span ℝ^n , then the columns are linearly independent

Here's why

Remember that the rank nullity theorem states that

$\text{rank}(A) + \text{Nullity}(A) = \text{Dim}(V)$

According to the information given we know that

$\text{rank}(A) = n \\dim(V) = n \\$

Therefore you have

$n + \text{Nullity}(A) = n$

and

$\text{Nullity}(A) = 0$

Which is equivalent to the problem we just solved.

FALSE

If A is an n × n matrix, then the equation Ax = b has at least one solution for each b in ℝ^n

Here's why

Take b as a non null vector and A=0, then Ax = 0 and Ax=b will have no solution.

3 0

3 years ago

The point (2,-3) lies in quadrant

Novay_Z [31]

Hello there!

The point (2,-3) would lay in quadrant IV, or 4.

Basically:

Points that are (x, y) or positive x and positive y ay in quadrant 1, or I.

Points that are (-x, y) or negative x and positive y lay in quadrant 2, or II.

Points that are (-x, -y) or negative x and negative y usually lay in quadrant 3, or III.

Points that are (x, -y) or positive x and negative y usually lay in quadrant 4, or IV.

I hope this was helpful! Have a great rest of your day :)

4 0

2 years ago

Read 2 more answers

What would -10(1-9x)+6(x-10) be?

krok68 [10]

Not sure but i think is -4.666..

6 0

3 years ago

If the volume for 3-D polyhedra A is 200 cm3 and the volume for 3-D polyhedral B is 800 cm3, how many times bigger is the volume

Ann [662]

We're literally just comparing 200 to 800 here.
800 is 4× bigger than 200, of course.
To put that in a percent...
Well, 1 = 100%. (it's a whole)
So 4 = 400%

8 0

3 years ago

Read 2 more answers