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3 years ago

Wich epression has a value of 2/3

Mathematics

1 answer:

valina [46]3 years ago

8 0

Answer:

which expressions are we choosing from?

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How many arrangements can be made using 3 letters of the word NETFLIX if no letter is to be used more than once?

Rina8888 [55]

Answer:2

Step-by-step explanation:

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2 years ago

Which would be the best method to use to solve the following equations? Explain your reasoning.

o-na [289]

A. square root property

$3x^2-192=0\\x^2-66=0\\x^2=66\\x= -\sqrt{66} or \sqrt{66}$

it has one value with x which is x^2 and it cn be easily solved without having to factorise, quadratic formula cant be used as it need ax^2+bx+c=0 format

B. factorising

$x^2-x-6=0\\x^2+2x-3x-6=0\\(x+2)(x-3)=0\\x+2=0 and x-3=0\\x= -2 \\x= 3$

i just felt like this was easier to factorise than the other 2 options left

C. Completing the square

$x^2-6x-7=0\\(x-3)^2=0\\x= -1\\x= 7$

same reason personal preference

D- Quadratic

$x^2-17x-7=0\\x=\frac{-(-17)+\sqrt{(-17)^2-4(1)(-7)} }{2(1)} \\x=\frac{-(-17)-\sqrt{(-17)^2-4(1)(-7)} }{2(1)}\\x=17.4\\x=-0.402$

the 17 kinda threw me off and i didnt wanna get on factorising or doing completing the square so quadratic formal

7 0

2 years ago

Find the slope of the line.

lukranit [14]

Answer:

Step-by-step explanation:

slope = dy/dx

= 0/x

= 0

7 0

2 years ago

How do you solve:<br> 4x +3y=8<br> 2x-18y=4

rosijanka [135]

Hey friend here is your answer

5 0

3 years ago

Find x: 1) 2x= 1/8 2)3x multiplied by 9= 81

Rainbow [258]

$= 2x = \frac{1}{8 } \\ = x = \frac{1}{2 \times 8} \\ = x = \frac{1}{16}$ $3x \times 9 = 81 \\ 3x = \frac{81}{9} \\ x = \frac{9}{3} \\ x = 3$

Heres your answer girlfriend ♥️♥️

Have you followed me when I answered your last question???

6 0

3 years ago