All categories

2 years ago

What is the sum? 8+(-12) -20 24 4 20

Mathematics

2 answers:

blagie [28]2 years ago

4 0

Answer:

-4

Step-by-step explanation:

adding a negative is the same as subtracting a positive

<h2><u><em>xoxo, </em></u></h2><h2><u><em>your highness...</em></u></h2>

Murrr4er [49]2 years ago

4 0

Answer: 24

8 + (-12) = -4

-4 + (-20) = -24

-24 + 24 = 0

0 + 4 = 4

20 + 4 = 24

You might be interested in

Solve and then use estimation to make sure your answer is reasonable.

olga2289 [7]

Assuming that he read at the same speed last summer, 2,724 pages.

3 0

2 years ago

How do I graph <br> Y= -2x-3<br> Y= x+3

solniwko [45]

this is not a answer but look up dezmos and it will graph it for you

6 0

3 years ago

Read 2 more answers

there are 3 good guys and three bad guys on one side of a river full of piranhas and there is a canoe big enough for two people

labwork [276]

If there are 3 bad guys and 3 good guys then they don't out number the good guys.

4 0

2 years ago

Prove the trigonometric identity

Annette [7]

Answer:

Proved See below

Step-by-step explanation:

Man this one is a world of its own :D Just a quick question are you a fellow Add Math student in O levels i remember this question from back in the day :D Anyhow Lets get started

For this question we need to know the following identities:

$1+tan^{2}x=sec^2x\\\\1+cot^2x=cosec^2x\\\\sin^2x+cos^2x=1$

Lets solve the bottom most part first:

$1-\frac{1}{1-sec^2x} \\\\$

Take LCM

$1-\frac{1}{1-sec^2x} \\\\\frac{1-sec^2x-1}{1-sec^2x} \\\\\frac{-sec^2x}{1-sec^2x} \\\\\frac{-(1+tan^2x)}{-tan^2x}$

now break the LCM

$\frac{-1}{-tan^2x}+\frac{-tan^2x}{-tan^2x}\\\\\frac{1}{tan^2x}+1\\\\cot^2x+1$

because 1/tan = cot x

and furthermore,

$cot^2x+1\\cosec^2x$

now we solve the above part and replace the bottom most part that we solved with $cosec^2x$

$\frac{1}{1-\frac{1}{cosec^2x} } \\\\\frac{1}{1-sin^2x} \\\\\frac{1}{cos^2x}\\\\sec^2x$

Hence proved! :D

4 0

2 years ago

I need help this is due tomorrow

goldfiish [28.3K]

Answer:

x z y is the awnser

Step-by-step explanation:

I'm doing this type of stuff

8 0

2 years ago