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4 years ago

What is the square root of 7?

Mathematics

2 answers:

galben [10]4 years ago

6 0

Answer:

2.64575131106

Step-by-step explanation:

telo118 [61]4 years ago

4 0

Answer:

2.64

Explanation:

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What are the values of m and n in the matrix addition below?

Aleksandr [31]

ANSWER

The correct answer is $m=45,n=12$ .

<u>EXPLANATION</u>

We were given the matrix equation;

$\left[\begin{array}{cc}n-1&6\\-19&m+3\end{array}\right] +\left[\begin{array}{cc}-1&0\\16&-8\end{array}\right] =\left[\begin{array}{cc}10&6\\-3&40\end{array}\right]$ .

We must first simplify the Left Hand Side of the equation by adding corresponding entries.

$\left[\begin{array}{cc}n-1+-1&6+0\\-19+16&m+3-8\end{array}\right]=\left[\begin{array}{cc}10&6\\-3&40\end{array}\right]$ .

That is;

$\left[\begin{array}{cc}n-2&6\\-3&m-5\end{array}\right]=\left[\begin{array}{cc}10&6\\-3&40\end{array}\right]$ .

Since the two matrices are equal, their corresponding entries are also equal. we equate corresponding entries and solve for m and n.

This implies that;

$n-2=10$

We got this equation from row one-column one entry of both matrices.

$n=12$

Also, the row three-column three entries of both matrices will give us the equation;

$m-5=40$

$m=45$

Hence the correct answer is $m=45,n=12$ .

The correct option is option 2

6 0

3 years ago

What makes composing functions different from doing an arithmetic operation of two functions such as adding or dividing them?

11111nata11111 [884]

function composition is an operation that takes two functions f and g and produces a function h such that h(x) = g(f(x)). In this operation, the function g is applied to the result of applying the function f to x.

3 0

3 years ago

Picture attached thx

lisabon 2012 [21]

2m = m + 5 / 4
8m = m + 5
7m = 5
m = 5 / 7

5 0

3 years ago

4a-3(a-2)=2(3a-2) How do you do this?

Alexxandr [17]

Answer:

a=2

Step-by-step explanation:

4a-3(a-2)=2(3a-2)

4a-3a+6=a-4

a+6=6a-4

a-6a=-4-6

-5a=-10

divide both sides by -5

a=2

7 0

3 years ago

Why did the troll give us the clues

Vinil7 [7]

Answer:

lol

Step-by-step explanation:

im laughing in class

5 0

3 years ago