Graad 1 mondeling oor my verjaarsdagpartytjie

Fixya maths 4 indices

Indices n surds

Hai again your support helps me alot can you please differentiate for me between the following -6to the power 2 and -6 to the power 2,& 2 to the power -3 + 1/3 to the power-2
I need a clarity how to convert these exponents to fractions
Posted by Ncwana Noziphiwo on Apr 03, 2018

https://www.tes.com/teaching-resource/indices-negative-indices-6427219

-62 means a number multiplied by itself twice
So in this case it is -6 x -6 = 36 - since -x- = +
If this was -6-2 the negative power means it's a fractional indice so first make it look like a fraction
1/-62 now it looks like a fraction (inverse) and the power mow looks like a normal square
Coz its still a negative number -6 x -6 = 36
So the answer is now 1/36

So when it is a minus power, first turn it into a fraction, then calculate as normal
Note: every number has a sign, it is either + or minus.
By convention, we always assume it is a plus unless stated otherwise.
To make sure u remember this fact put a plus sign in front of every number if no sign is showing
You can start with buses the 27 bus is +27
Its like if u say u have a car, what u really mean is you have 1 car. But u drop the 1 coz everyone takes for granted u meant 1 car, 1 house, 1 friend etc
Every power we assume its + unless otherwise stated.
So when a minus is put in front of the power, its saying make it a fraction first!
Maths is a game and games have rules.
This rule is a minus in front of power (indice) change to fraction form first!
So if it is 2-3 - the power -3 is saying turn it into a fraction first so
1/23 = 1/ 2x2x2 = 1/8
If it had of been 23 notice how no signs shown because we take for granted they r all +
Let's show them
+2+3 since it's a plus 3 we don't need to change it to a fraction and since it is a plus 2
We have +2 x + 2 x +2 and a +x+ x+ = +
2x2x2 = 8
Its easier to just do 23 = multiply the 2 by itself 3 times
2x2x2 = 8
When doing fractions of any type I prefer showing them as being more obviously top/bottom
1
-
2

Format and for that free hand is easier as typing is hard...lol
Ie
Numerator Denominator
When using a number that's a fraction it is better tro enclose it in brackets
As every indice is of the form - numberpower
The number can just as easily be a fractional number like a 1/3
So (1/3)2 is a third multiplied by itself
1/3 x 1/3 = 1x1/3x3 = 1/9
If it was (1/3)-2 then first u must get rid of the minus power by turning it into a fraction
1/(1/3)2
1/1/3 x 1/3
1/1/9
And 1 divided by a ninth =
1 to be cont - tired..lol

https://translate.google.com/#auto/en/Graad%201%20en%202%20vraesteel%20vir%20Kwartaal%201


Grade 1 and 2 questionnaire for Quarter 1

Slope is defined in many ways, but they are all essentially the same. It is the change in y divided by the change in x.

I like my students writing one above the other so that (as) they always start with the same point, and (b) they don't mix up their x's and y's.

The formula for slope is y (sub 1 - y sub 2) / (x sub 1 - x sub 2), where sub means subscript, which just denotes which point it is.


(x,y)
(-1,-7)
(-3,8)

change in y's: -7 - 8 = -15

change in x's: -1 - (-3) = -1 + 3 = 2 *** note - (-3) is + 3

So plugging into our formula we have m = -15/2 or -7 1/2 or -7.5.

Good luck,

Paul

Hello, Hugo -

First, why is your question seeking a speech in Afrikaans about the good or bad of Valentine's Day in the Fixya.com category for Cars & Trucks?

Added: I see your question is now in the Homework category.

Second, Fixya.com is not the best website for asking questions about government grants in South Africa. Fixya.com is intended as a website for asking and answering questions on how to go about REPAIRING _THINGS_.

If there is a public library (a library funded with local or regional government money) in your area, I suggest you ask your question of a librarian there.

I am a librarian by profession in the USA.

Best wishes.

slope or m = (y2 -y1)/(x2-x1)
always start with the same point.

m = (1 - (-5))/(-2-5)
m = (1 + 5)/(-7)
m = 6/-7
m = -6/7

The y-intercept is the b in the equation y=mx+b.
We can use either point to calculate b. Let's use (-2,1). So every time we see x, we put in -2, and every time we see y, we put in 1.

y = -6/7x + b
1 = -6/7 (-2) + b
1 = 12/7 + b
1 = 1 5/7 + b
-5/7 = b
So, y = -6/7x - 5/7

To check, we substitute in the other point and see if the left side is equal to the right side.

LS RS
-5 -6/7(5) - 5/7
-5 -30/7 - 5/7
-5 -35/7
-5 -5
LS = RS
QED


Good luck,

Paul

Just want to make sure that we are on the same page.

2^(-3) + 3^(-3)

2 to the exponent -3 + 3 to the exponent -3

Because of BEDMAS, we have to do the exponent calculations first and then do the addition between the two terms last.

The rule of negative exponents is you put 1 over the base to the same exponent, but change the exponent from negative to positive.

=1/(2^3) + 1/(3^3)

= 1/8 + 1/27

To add or subtract numbers, we need a common denominator.

Let's factor 8 and 27 to get the lowest common multiple.

8 - 1 2 4 8
27 - 1 3 9 27

Nothing in common to eliminate, so we have to use 8 x 27 or 216.

27/216 + 8/216 = 35/216

Good luck,

Paul

It should be 1:4. Reasons
A quarter equals to 25 pennies and a 100 pennies are equal to 1 dollar. So having these sorted out means 1:4

Let's rewrite as

7(3x+5) = 8x -1(1-4x)
Let's distribute
21x + 35 = 8x -1 + 4x
collect like terms
21x + 35 = 12x -1
Put all the x's on one side by subtracting 12x from both sides
21x -12x + 35 = 12x -1 -12x
simplify
9x + 35 = -1
get all the constants on the right side
9x + 35 - 35 = -1 - 35
9x = -36
divide both sides by 9 to get x by itself
9x /9 = -36/9
x = -4

check in original equation

7(3(-4)+5) = 8(-4) -(1-4(-4))
7(-12+5) = -32 - (1+16)
7 (-7) = -32 - (17)
-49 = -32-17
-49 = -49