All categories

3 years ago

Someone help with this please ?

Mathematics

1 answer:

artcher [175]3 years ago

8 0

M + n = 5

Alright, so unFOILing the numerator, you'd get (x+5)(x-3). However, since (x-3) is not there in the second fraction, we know that the denominator must also have had (x-3), causing them to cancel.

Now that we know one of the parts to the denominator is (x-3), the second fraction tells us the other: (x-4).

Thus, FOILing (x-3)(x-4) gives us x^2 - 7x + 12. So, m = -7 and n = 12, and just add them up.

You might be interested in

What is the value of xx) = 9^x when x= -2?<br><br>A. 1/81<br><br>B. 81<br><br>C. 1/81<br><br>D. 18

Paraphin [41]

Answer:

C. $9^{-2} = \frac{1}{81}$

Step-by-step explanation:

Given

$9^{x}$

Required

Find the expression where x - 2

$9^{x}$

Substitute 2 for x

$9^{-2}$

From law of indices which states

$a^{-b} = \frac{1}{a^b}$

So, the expression becomes

$9^{-2} = \frac{1}{9^2}$

Expand the denominator

$9^{-2} = \frac{1}{9 * 9}$

$9^{-2} = \frac{1}{81}$

Hence, $9^{x}$ is $\frac{1}{81}$ when x = 2

5 0

3 years ago

Hi what isthe answer

REY [17]

Answer:

2x^7

Step-by-step explanation:

2x^4 × x^3 =

= 2x^(4+3)

= 2x^7

8 0

3 years ago

4.4 The three circles are fitted into a rectangle like in the figure below. The radius of the bigger Is 5 unit and the radius of

statuscvo [17]

The height of the parallelogram is 6.4 m.

<h3>What is a parallelogram?</h3>

A parallelogram is a quadrilateral. Let us recall that a quadrilateral is a four sided figure. It is also important to recall that the opposite sides of a parallelogram are equal.

Let us now try to find the height of the parallelogram;

Given that;

/DE/ = /AC/

10 = /BC/ + /AB/

/AB/ = 10 - /BC/

/AB/ = 10 - 6

/AB/ = 4 cm

Then;

/AE/= /CD/ = 5 cm

Using the Pythagoras theorem;

/EB/^2 = /AE/^2 + /AB/^2

/EB/ = √/AE/^2 + /AB/^2

/EB/ = √(5)^2 + (4)^2

/EB/ = √ 25 + 16

/EB/ = 6.4 m

Learn more about parallelogram:brainly.com/question/1563728

#SPJ1

8 0

2 years ago

If A=<img src="https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D1%264%5C%5C5%266%5C%5C%5Cend%7Barray%7D%5Cright%5D"

cestrela7 [59]

<h3><u>Given :- </u></h3>

$A=\left[\begin{array}{ccc}1&4\\5&6\\\end{array}\right]$
a $_{ij}$ = 6

Value of i and j

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

$\longrightarrow$ In a matrix the the the position of an element is determined by using a $_{ij}$ where i the number of row and j is number of column in which the element is.