3x + (2 + x) + 5 ∙ 3

Step-by-step explanation:

This is SAS.

Hope it helps you.

This question is incomplete, the complete question is;

A general reaction written as A + 2B → C + 2D is studied and yields the following rate law: ∆A/∆t = k A².

The initial concentration is 1.000 M and t½=20.00 s.

How long will it take for the concentration to reach 0.0500 M

Answer:

it will take 380 seconds for the concentration to reach 0.0500 M

Step-by-step explanation:

Given that;

A + 2B → C + 2D

initial concentration A₀ = 1 M

half life t1/2 = 20sec

concentration after t time [A_t] = 0.0500 M

∆A/∆t = k A²

This is a second order chemical kinetics

for this order; t1/2 = 1 / [A]₀K

A₀ is initial concentration, K is rate constant, t1/2 is half life

so,

k = 1 / [A₀]t1/2

we substitute

K = 1 / 1.000 × 20

K = 0.05 mol⁻¹L/sec

for second reaction order

1/[A_t] = kt + 1/[A₀]

kt = 1/[A_t] - 1/[A₀]

we substitute

kt = 1/0.0500 - 1/1.000

kt = 20 - 1

kt = 19

substitute the value of k

0.05 × t = 19

t = 19 / 0.05

t = 380 sec

Therefore it will take 380 seconds for the concentration to reach 0.0500 M

Answer:

e. 23.14 m

Step-by-step explanation:

Perimeter of the figure = ½(perimeter of a circle) + 2(a) + b

= ½(πd) + 2(a) + b

Where,

d = 2 m

a = 9 m

b = 2 m

Plug in the values into the equation

Perimeter of the figure = ½(π*2) + 2(9) + 2

= π + 20

= 23.14 m (nearest hundredth)

Answer:

-2x+y = 4

y = 2x+4

Slope = 2                      y-intercept = 4

Answer:

Albert read the most

Step-by-step explanation:

Answer:

take each of your pages times the number of present, it will give you a answer of pages they read each day, but your answer would be albert he read 8.4 pages a day keith 7.68, Rita 6.72, and bess 7.2.

Step-by-step explanation:

❤❤❤❤❤❤❤❤❤❤❤❤❤

[tex] {x}^{2} - 6x + {y}^{2} - y = 2[/tex]

Add sides 9 + 1 / 4

[tex] {x}^{2} - 6x + {y}^{2} - y + 9 + \frac{1}{4} = 2 + 9 + \frac{1}{4} \\ [/tex]

[tex] ({x}^{2} - 6x + 9) + ( {y}^{2} - y + \frac{1}{4} ) = 11 + \frac{1}{4} \\ [/tex]

[tex] ({x - 3})^{2} + ({y - \frac{1}{2} })^{2} = \frac{44}{4} + \frac{1}{4} \\ [/tex]

[tex] ({x - 3})^{2} + ( {y - \frac{1}{2} })^{2} = \frac{45}{4} \\ [/tex]

______________________________________

Remainder :

[tex] ({x - a})^{2} + ({y - b})^{2} = {R}^{2} [/tex]

[tex]center = ( \: a \: , \: b \: )[/tex]

[tex]radiuc = R[/tex]

______________________________________

Compare :

[tex] ({x - a})^{2} + ( {y - b})^{2} = {R}^{2} [/tex]

[tex]( {x - 3})^{2} + ({y - \frac{1}{2} })^{2} = ({ \frac{ \sqrt{45} }{2} })^{2} \\ [/tex]

Thus ;

[tex]center = ( \: 3 \: , \: \frac{1}{2} \: ) \\ [/tex]

[tex]radius = \frac{ \sqrt{45} }{2} = \frac{ \sqrt{9 \times 5} }{2} = \frac{3 \sqrt{5} }{2} \\ [/tex]

Done...

❤❤❤❤❤❤❤❤❤❤❤❤❤

Answer:

20%

Step-by-step explanation:

Divide 3 by 15 to get 1/5. If you divide 1 by 5, you will get a decimal answer of 0.2. To convert a decimal to a percent, you must multiply the decimal by 100, which basically means to move the decimal place to the right twice. You will then get the product and final answer of 20%.

Answer: i cannot answer this question correctly without picture or diagram of the triangle but here is something that can help

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

I think but I may be wrong

Answer:

cronana va de

Step-by-step explanation:

Answer:

731

Step-by-step explanation:

Answer:

answer is 2397

Step-by-step explanation:

Answer:

Subtration property of Equality

Step-by-step explanation:

B + 7 = 15

   - 7    - 7

B = 8

The equation B + 7 = 15 becomes B = 8 by subtraction property of equality thus option (C) is correct.

The number system is a way to represent or express numbers.

A decimal number is a very common number that we use b.

Since the decimal number system employs ten digits from 0 to 9, it has a base of 10.

As per the given equation,

B + 7 = 15

Subtract 7 on both sides,

B + 7 - 7 = 15 - 7

B = 8

Hence "The equation B + 7 = 15 becomes B = 8 by subtraction property of equality".

For more about the number system,

https://brainly.com/question/22046046

#SPJ2

Answer:

12 is the answer

Step-by-step explanation:

can you give me Brainliest PLZ

Answer:

12 is the answer i belive if not im sorry (:(

Answer:

$475

Step-by-step explanation:

First, we need to subtract 61 from 1011 which given us 950. Then, we divide 950 by 2 to give us the cost of the dryer :)

950 ÷ 2 = 475

This means the cost of the washer is $536 (not relevant to the answer, but at least now you know :) )

Answer:

red, green, blue, red green, blue green, red blue

Step-by-step explanation:

i hope this is the answer to your question, please give me brainliest, please

We are given the Set: {Red, Green, Blue}

Number of Subsets of the Set:

Number of Subsets of a set is also known as the power of that set

The power of a set is denoted as: 2ⁿ (where n is the number of elements of the set)

Power of the given set:   2³ = 8 subsets

All the subsets of the Given set (The Power Set):

{ ∅, {Red}, {Green}, {Blue} , {Red, Green} , {Green, Blue}, {Blue, Red} , {Red, Green, Blue} }

Answer:

The answer is 3 7/10!!!!!!!!!!!

Step-by-step explanation:

I hope this help! :)

Answer:

3 7/10!

Step-by-step explanation:

I HOPE THIS HELPED!

Answer:

24.5

Step-by-step explanation:

5x-25+3x+9=180

8x-16=180

8x=196

196/8=24.5

Answer:

The answer is A. 6x+30

Step-by-step explanation:

Answer:

6x+30

Step-by-step explanation:

3(x+5) + 3(x+5)

3x+15+3x+15

6x+30

Answer:

tell me the problem

Answer: pretty sure it's 20

Step-by-step explanation:

Answer:

The answer is B

Step-by-step explanation:

Answer:

1/4

Step-by-step explanation:

have a good day!

Answer:

im pretty sure it's P({x:x is oven-baked apple & lavender calzone })

Step-by-step explanation:

its the one with the biggest section

Answer:

danlowde photomath and u'll know