3 years ago

How does using zero pairs help you solve equations?

Mathematics

1 answer:

Alik [6]3 years ago

8 0

Answer:

Just do

Step-by-step explanation:

You might be interested in

Which is better Financial manager or accountant?

Umnica [9.8K]

Answer:

Financial manager sounds more professional.

Step-by-step explanation:

7 0

3 years ago

Use matrix inversion to solve the collection of systems of linear equations. HINT [See Example 4.] (a) −x − 4y + 2z = −10 x + 2y

omeli [17]

Answer:

Step-by-step explanation:

given is a system of linear equations in 3 variables as

$-x - 4y + 2z = −10\\ x + 2y - z = 11 \\x + y - z = 14$

This can be represented in matrix form as

AX=B Or

$\left[\begin{array}{ccc}-1&-4&2\\1&2&-1\\1&1&-1\end{array}\right] *\left[\begin{array}{ccc}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}-10\\11\\14\end{array}\right]$

So solution set

X would be $A^{-1} B$

|A|=-1(-1)+4(0)+2(-1)=--1

Cofactors of A are

-1 0 -1

-2 -1 -3

0 1 2

So inverse of A is

1 2 0

0 1 -1

1 3 -2

Solution set would be

x=12

y=-3

z=-5

8 0

3 years ago

Which of the following is a composite number? A. 63 B. 19 C. 1 D. 0

Alexandra [31]

The composite number is A.63. 1 is neither a prime or composite. 19 is a prime. 0 is a trick honestly, it isn't a prime or a composite

6 0

2 years ago

Can someone give me the best broken down way to solve these questions?

sdas [7]

Answer:

6 inches.

Step-by-step explanation:

Set up a proportion and solve for the missing variable.

$\frac{2}{5}=\frac{x}{15}\\\\15(\frac{2}{5})=15(\frac{x}{15})\\\\6=x$

7 0

3 years ago

Wrote the number in 2 other forms 15,409

myrzilka [38]

10,000+5,000+400+9
there is one and the other you just put in word form

4 0

3 years ago

Read 2 more answers