All categories

2 years ago

Simplify: 20x - 2-3 + 3x)

Mathematics

1 answer:

vovikov84 [41]2 years ago

6 0

Answer:

23x-5

Step-by-step explanation:

20x - 2-3 + 3x) in simpilfy is it 23x5

You might be interested in

A surveryor wants to know how many shoppers at a mall like to read books. He surveys 100 people coming out of a bookstore at the

bonufazy [111]

Yes it is biased aaaaaaaaaaaaaaaaaaaaaaaaaa

3 0

1 year ago

Read 2 more answers

How do I solve this problem

tino4ka555 [31]

Answer:

0.6

Step-by-step explanation:

2x3 add 1 power of 10 to the 3 you get 6 and now you just remove/divide the power of 10 you added and you get .6

7 0

2 years ago

Solve the system by using a matrix equation.<br> --4x - 5y = -5<br> -6x - 8y = -2

evablogger [386]

Answer:

Solution : (15, - 11)

Step-by-step explanation:

We want to solve this problem using a matrix, so it would be wise to apply Gaussian elimination. Doing so we can start by writing out the matrix of the coefficients, and the solutions ( - 5 and - 2 ) --- ( 1 )

$\begin{bmatrix}-4&-5&|&-5\\ -6&-8&|&-2\end{bmatrix}$

Now let's begin by canceling the leading coefficient in each row, reaching row echelon form, as we desire --- ( 2 )

Row Echelon Form :

$\begin{pmatrix}1\:&\:\cdots \:&\:b\:\\ 0\:&\ddots \:&\:\vdots \\ 0\:&\:0\:&\:1\end{pmatrix}$

Step # 1 : Swap the first and second matrix rows,

$\begin{pmatrix}-6&-8&-2\\ -4&-5&-5\end{pmatrix}$

Step # 2 : Cancel leading coefficient in row 2 through $R_2\:\leftarrow \:R_2-\frac{2}{3}\cdot \:R_1$ ,

$\begin{pmatrix}-6&-8&-2\\ 0&\frac{1}{3}&-\frac{11}{3}\end{pmatrix}$

Now we can continue canceling the leading coefficient in each row, and finally reach the following matrix.

$\begin{bmatrix}1&0&|&15\\ 0&1&|&-11\end{bmatrix}$

As you can see our solution is x = 15, y = - 11 or (15, - 11).

4 0

2 years ago

point "b" has coordinates of -2,-5 after a translation 4 units down a reflection across the y axisand a translation 6 units up w

monitta

Point b would be at 2,-3

5 0

3 years ago

Two integers a and b have a product of -33. What is the least possible sum of a and b

irga5000 [103]

The number -33 divisors are:

D(-33) = {-33, -11, -3, -1, 1, 3, 11, 33}

a × b = -33

2) -11 × 3 = -33 ⇒ Sum is: -11 + 3 = -8

3) -3 × 11 = -33 ⇒ Sum is: -3 + 11 = 8

4) -1 × 33 = -33 ⇒ Sum is: -1 + 33 = 32

6) 3 × (-11) = -33 ⇒ Sum is: 3 + (-11) = 3 - 11 = -8

7) 11 × (-3) = -33 ⇒ Sum is: 11 + (-3) = 11 - 3 = 8

8) 33 × (-1) = -33 ⇒ Sum is: 33 + (-1) = 33 - 1 = 32

<h2>The least possible sum of a and b is -32</h2>

to 1) and to 5)

7 0

3 years ago