All categories

3 years ago

PLEASEEE HELP!! What are the dimensions of the matrix? 5x5 3x3 5x3 3x5

Mathematics

1 answer:

aleksklad [387]3 years ago

8 0

This matrix has 5 rows and 3 columns which means it is a 5x3

You might be interested in

A value is in the domain if there is a ____ on the graph of the function at that x-value

fredd [130]

<span>A value is in the domain if there is a point on the graph of the function at that x-value</span>

5 0

3 years ago

Solve equation: –6 + 3x = –9

ICE Princess25 [194]

3x=-9+6
3x=-3
x=-3/3
x=-1

3 0

3 years ago

Read 2 more answers

1. Jay said, “The amount of money in my checking account is less than $50.00, but greater than $40.00.” Which statements about t

Pepsi [2]

I don't know the options but I guess it would be something like this:
40,000 < x < 50,000

4 0

3 years ago

Are two lines parallel, perpendicular or neither 3x+7y=15 and 7x-3y=6

maw [93]

Answer:

The lines are perpendicular

Step-by-step explanation:

we know that

If two lines are parallel, then their slopes are equal

If two lines are perpendicular, then their slopes are opposite reciprocal (the product of their slopes is equal to -1)

we have

$3x+7y=15$ ----> equation A

isolate the variable y

$7y=-3x+15$

Divide by 7 both sides

$y=-\frac{3}{7}x+\frac{15}{7}$

The slope of the line A is $m_A=-\frac{3}{7}$

$7x-3y=6$ ----> equation B

isolate the variable y

$3y=7x-6$

Divide by 3 both sides

$y=\frac{7}{3}x-2$

The slope of the line B is $m_B=\frac{7}{3}$

Compare the slope of both lines

$m_A=-\frac{3}{7}$

$m_B=\frac{7}{3}$

$m_A \neq m_B$ ----> the lines are not parallel

Find the product of the slopes

$-\frac{3}{7}(\frac{7}{3})=-1$ ----> the lines are perpendicular

4 0

3 years ago

The sum of three consecutive multiples of 7 is 357.find the smallest multiple.

Afina-wow [57]

Answer:

112, 119 and 126.

Step-by-step explanation:

Let the consecutive multiples of 7 be 7n, 7(n+1) and 7(n+2) where n is an integer, then:-

7n + 7n + 7 + 7n + 14 = 357

21n + 21 = 357

21(n + 1) = 357

n = (357/21) - 1

n = 17 + 1 = 16.

So the numbers are 7*16 = 112, 7*17 = 119 and 7*18 = 126.

3 0

3 years ago