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3 years ago

13

Idk what all these means need help plzzzzzx

2 answers:

Schach [20]3 years ago

3 0

It is d bexause every 6 is moved to the left for every one and it isnt abexause if you add 6 it would instwad go 6 12 18 24 and so on and its no c because if you move it to the right the # would decrease and obviously not b because if you subtract 0 every time it would stay as the same number

baherus [9]3 years ago

3 0

the pattern is times 10

when the zeros keep decreasing it means the number is getting larger, therefore getting multiplied by ten as 6 stays.

hope this helped! Have a good day <3

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-3x - 4 < 5<br> X > -3<br> X<-3<br> x < (1/3)<br> *> (1/3)

egoroff_w [7]

Answer:

x < -3

Step-by-step explanation:

-3x > 5 + 4

-3x > 9 /: (-3) *** WHEN DIVIDING BY A NEGATIVE NUMBER THE SIGN OF THE INEQUALITY CHAGES !!!

x < -3

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below ;)

6 0

4 years ago

Two more than four times a number is -18 ((I have to solve it too!!))

vivado [14]

4 x -5= -20 and -20 + 2 = -18

The number is -5

5 0

4 years ago

<img src="https://tex.z-dn.net/?f=%5Cboxed%7B%5Cblue%7B%5Cmathscr%7BHello%5C%3ABrainliacs%7D%7D%7D" id="TexFormula1" title="\box

andrew-mc [135]

For the reaction,

$CO(g) + H_2 O(g) = CO_2(g) + H_2(g)$

Initial concentration:

<u>0.1M</u> , <u>0.1M</u> , <u>0</u> , <u>0</u>

Let 'x' mole per litre of each of theproduct be formed.

At equilibrium:

<u>(0.1 – x)M</u> , <u>(0.1 – x)M</u> , <u>xM</u> , <u>xM</u>

where x is the amount of Carbon dioxide and Hydrogen, at equilibrium.

Hence, equilibrium constant can be written as,

$K_c = \frac{x²}{(0.1 – x)²} = 4.24$

→ x² = 4.24 (0.01 + x² – 0.2x)

→ x² = 0.0424 + 4.24 x² - 0.848x

→ 3.24x² - 0.848x + 0.0424 = 0

<em>a = 3.24, b = -0.848, c = 0.0424</em>

(for quadratic equation ax² + bx+c=0)

$x = \frac{( - b \: ± \: \sqrt{ {b}^{2} - 4ac) } }{2a}$

$= > x = \frac{ - ( - 0.848 \: ± \: \sqrt{( - 0.848)^{2} - 4(3.24)(0.0424) } }{2 \times 3.24}$

$= > x = \frac{ - 0.848±0.4118}{6.48}$

$x_1 = \frac{0.848 - 0.4118}{6.48} = 0.067$

$x_2 = \frac{0.848 + 0.4118}{6.48} = 0.194$

Here, the value 0.194 should be neglected because it will give concentration of the reactant which is more than initial concentration.

∴ The equilibrium concentrations are :-

$[CO_2] [H_2] = x = 0.067M$

$[CO] [H_2 O] = 0.1 - 0.067 = 0.033M$

7 0

3 years ago

Question 1 Arecipe for a chicken and rice dinner calls for 3 cups of rice for every 2 pounds of chicken. Select the true stateme

lina2011 [118]

Answer:

The ratio of pounds of chicken to cups of rice is 2 to 3.

Step-by-step explanation:

3 rice: 2 chicken

3:2 ratio

can be written either number first

3 0

3 years ago

Word expression for 3+(4×12)

Anni [7]

Fifty one is the answer to your question

4 0

3 years ago