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3 years ago

Please help! Consider matrices A, B, and C. Which matrix represents (A-B)-C?

Mathematics

1 answer:

Firdavs [7]3 years ago

8 0

Answer:

B.) I cant insert a 2x2 matric but the [5 7

7 4] matrix is correct

Step-by-step explanation:

I got a 5/5 on the test so I know that B is the correct answer

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3 years ago

7x - 3y = 31<br> 7x + y = -1<br><br><br> Please solve x and y

Vika [28.1K]

Answer:

(1, -8)

y= -8

x= 1

Step-by-step explanation:

7x-3y= 31

7x+y= -1

solve the equation

7x-3y=31

7x= -1-y

substitute the value of 7x into an equation

-1-y-3y=31

subtract -y to -3y

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divide both sides by -4

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(1, -8)

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4 years ago

What is an equivalent expression to 56m+21n?

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Idk sorryh hssnnssnnssnnssndbxnxhhxxxxjjxdss

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3 years ago

1. It is a set of all points in a plane with same distance from a certain point.

Viefleur [7K]

Answer:

B) Circle

Step-by-step explanation:

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3 years ago

a school netball team won ten matches , lost four and drew 1/8 of the total played . how many matches were drawn and what fracti

defon

The school net ball team drew 2 matches. The team won $\frac{5}{8}$ of total matches played

<h3><u>Solution:</u></h3>

Given, A school netball team won ten matches, lost four and drew $\frac{1}{8}$ of the total played

Let the total number of matches played be "n"

Number of matches drawn = $\frac{1}{8}$ of n

<em>Total matches played = number of won matches + number of lost matches + number of drawn matches</em>

$\begin{array}{l}{n=10+4+\frac{1}{8} n} \\\\ {n-\frac{1}{8} n=10+4}\end{array}$

Taking "n" as common from left hand side,

$\begin{array}{l}{\mathrm{n}\left(1-\frac{1}{8}\right)=14} \\\\ {\mathrm{n} \times \frac{8-1}{8} \quad 14} \\\\ {\mathrm{n} \times \frac{7}{8}=14} \\\\ {\mathrm{n}=16}\end{array}$

So, they played 16 matches in total

Number of matches drawn = $\frac{1}{8}$ of n = $\frac{1}{8} \times 16 = 2$ $\text { Fraction of won matches }=\frac{\text { number of matches won }}{\text { number of matches played }}=\frac{10}{16}=\frac{5}{8}$

$\text { Hence, the team drew } 2 \text { matches and won } \frac{5}{8} \text { of total played matches. }$

3 0

3 years ago