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3 years ago

Does this seem answer seem correct?

Mathematics

1 answer:

Blababa [14]3 years ago

5 0

I mean I think so I’m not completely sure it’s a really hard question

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Which of the following describes the matrix?

Katena32 [7]

Answer:

3x3

Step-by-step explanation:

there are 3 rows and 3columns

8 0

3 years ago

What is a solution to the system of equation 3x-4y=22 -9x+4y=38

sergejj [24]

(-10,-13) is the answer

7 0

3 years ago

Read 2 more answers

Find the inequality represented by the graph.

Korvikt [17]

Answer:

y>4x-2

Step-by-step explanation:

First let us find the equation of the line.

Given points (1,2) and (0, -2), the slope would be

(2-(-2))/(1-0) = 4/1= 4

The intercept is at -2, so the full equation would be

y=4x-2

However, we need to find the inequality of the graph. Everything greater than our line/above our line is included. Also notice that the line is dotted, which means that the line itself is not included.

Our equations should be,

y>4x-2

I hope this helps! :)

8 0

2 years ago

Part B The mass of an average grain of rock salt is about 40 times the mass of an average grain of table salt. If you multiply t

Lady bird [3.3K]

Answer: Its (A)

Step-by-step explanation:

6 0

2 years ago

PLEASEEE HELP MEEEE NO LINKSSS

Artemon [7]

Answer:

$\huge\boxed{(2,\ 3);\ (-1,\ 6)}$

Step-by-step explanation:

$f(x)=x^2-2x+3\to y=x^2-2x+3\\f(x)=-x+5\to y=-x+5\\\\\left\{\begin{array}{ccc}y=x^2-2x+3&(1)\\y=-x+5&(2)\end{array}\right$

substitute (1) to (2):

$x^2-2x+3=-x+5$ add x to both sides

$x^2-2x+x+3=-x+x+5$

$x^2-x+3=5$ subtract 5 from both sides

$x^2-x+3-5=5-5$

$x^2-x-2=0\\\\x^2+x-2x-2=0\\\\x(x+1)-2(x+1)=0\\\\(x+1)(x-2)=0\iff x+1=0\ \vee\ x-2=0\\\\\boxed{x=-1\ \vee\ x=2}$

substitute the values of x to (2):

$x=-1\\\\y=-(-1)+5=1+5=6\\\\\huge\boxed{(-1,\ 6)}\\\\x=2\\\\y=-2+5=3\\\\\huge\boxed{(2,\ 3)}$

3 0

3 years ago