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2 years ago

You eat at several Asian restaurants and decide that Asian food is too salty. What type of reasoning is this?

Mathematics

1 answer:

MatroZZZ [7]2 years ago

8 0

The answer for you would be inductive because you have conclusions on that every Asian restaurant is salty

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The radioactive isotope radium has a half-life of 1,600 years. The mass of a 100-gram sample of radium will be______ grams after

Olenka [21]

To solve this we are going to use the half life equation $N(t)=N_{0} e^{( \frac{-0.693t}{t _{1/2} }) }$
Where:
$N_{0}$ is the initial sample
$t$ is the time in years
$t_{1/2}$ is the half life of the substance
$N(t)$ is the remainder quantity after $t$ years

From the problem we know that:
$N_{0} =100$
$t=200$
$t_{1/2} =1600$

Lets replace those values in our equation to find $N(t)$ :
$N(200) =100e^{( \frac{(-0.693)(200)}{1600}) }$
$N(200)=100e^{( \frac{-138.6}{1600} )}$
$N(200)=100e^{-0.086625}$
$N(200)=91.7$

We can conclude that after 1600 years of radioactive decay, the mass of the 100-gram sample will be 91.7 grams.

8 0

2 years ago

John enlarged one side of his square flower bed by 8 ft to make it into a rectangle. The area of the new flower bed is 3 times t

maks197457 [2]

Answer:

4 ft.

Step-by-step explanation:

We can consider the orignial square's sides to be x, so area of the original figure: $x^{2}$

The new rectangle's sides will be x and x+8, so the area of the new figure will be x^2+8x.

We know that the new area is 3 times the old one. So our equation will be:

x^2+8x=3x^2

our answer will be x=4.

Therfore, the length of the side of the old flower bed is 4 ft.

4 0

2 years ago

Read 2 more answers

1/3(4 + 18)-2² PLIS I need help :(

liraira [26]

Answer:

10/3

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Step-by-step explanation:

Step 1: Define

1/3(4 + 18) - 2²

Step 2: Evaluate

(Parenthesis) Add: 1/3(22) - 2²
Exponents: 1/3(22) - 4
Multiply: 22/3 - 4
Subtract: 10/3

5 0

2 years ago

12. Which of the following are the coordinates of the vertex of y=-x+ 2x+ 1?

Vladimir79 [104]

My guess would probably be ( 1 , 2 ) I searched it up and that’s where the points where , Hope I helped

5 0

2 years ago

Help please I don’t know how to do it

bearhunter [10]

An integer is just a whole number, so like 3 or 6 or 17. any number without a decimal.
The question is asking what number is less than 2 and 8.
the answer could be 5 or 3 or 4

4 0

2 years ago