Please please help me!!

Answer:

Step-by-step explanation:

Next time please include the answer choices.

128x^5*y^8 is equivalent to (2^7)*x^5*y^8

Answer:

Instructions are below.

Step-by-step explanation:

To calculate the final amount if a given substance, we need to use the following formula:

final amount= initial amount / (2^n)

n= elapsed time / half-life

For 20 years:

n= 20/10= 2

Final amount= 200/(2^2)

Final amount= 50 grams

For 60 years:

n= 60/10= 6

Final amount= 200/ (2^6)

Final amount= 3.125 grams

To calculate the elapsed time it is more complicated:

elapsed time= ln(ending amount/beginning amount) / (-decay constant)

ln= natural logarithm

decay constant= ln(2) / half-life

decay constant= 0.0693

elapsed time= ln(1.03/200) / (-0.0693)

elapsed time= 76.028

Prove:

n= 76.02/10= 7.602

Final amount= 200/(2^7.602)= 1.03 grams

Answer:

89

Step-by-step explanation:

3204 divided by 36 = 89

36 x 89 = 3204

Answer:

y=-2x

i think this is what your asking for if im wrong im sorry

Step-by-step explanation:

Answer:

y=-2x

the answer is y=-2x

Answer:

its d

Step-by-step explanation:

i just did it

Answer:

2 2/5

Step-by-step explanation:

3/4 divided by 5/16 = 3/4 times 16/5, which equals 48/20.

4 goes into each.

thus, giving you 12/5.

we write this as a mixed number, which gives us 2 2/5

Answer:

Step-by-step explanation:

Answer:

Than answer is (7 x 2) + 3

Answer: free robux

Step-by-step explanatiofre

Answer: A Boston

Step-by-step explanation: i guessed and got it right

Answer:

Step-by-step explanation:

90

Answer:

Need a picture of the problem.

Step-by-step explanation:

Answer:

G. [tex] \frac{3.2}{2} = \frac{a}{8} [/tex]

Step-by-step explanation:

Given that figure I and figure II are similar, it follows that the ratio of their corresponding side lengths are equal and the same.

Thus:

[tex] \frac{3.2}{2} = \frac{a}{8} = \frac{8}{5} = \frac{6.4}{b} [/tex]

Therefore, the proportion that must be true is:

✔️[tex] \frac{3.2}{2} = \frac{a}{8} [/tex]

Answer:

c number option is the correct answer

Answer:

I´m good

Step-by-step explanation:

Answer:

I love myself

and you

Answer:

A non negative ration number is a point between a whole number a a decimal fraction (i.e. 1.25) fractions. any part of a group number or whole. numerator. number above the line of a fraction, showing number of parts of the whole.

Step-by-step explanation:

Answer:

{x,y}={  5/9,0}

Step-by-step explanation:

9x - 2y = 5

y = 0

9x - 2•() = 5

9x = 5

x = 5/9

By now we know this much :

   x = 5/9

   y = 0

⇒{x,y} = {5/9,0}

Answer:

Please check the explanation.

Step-by-step explanation:

Given the equation

[tex]9x + 2y = 5[/tex]

solving the equation for y

[tex]9x + 2y = 5[/tex]

Step 1: Add -9x to both sides

[tex]9x+2y+-9x=5+-9x[/tex]

[tex]2y=-9x+5[/tex]

Step 2: Divide both sides by 2

[tex]\frac{2y}{2}=\:\frac{-9x+5}{2}[/tex]

[tex]y=\frac{-9}{2}x+\frac{5}{2}[/tex]

Thus, the value of y is:

[tex]y=\frac{-9}{2}x+\frac{5}{2}[/tex]

If we put y = 0 in the [tex]9x + 2y = 5[/tex]

[tex]9x+\left(0\right)=5[/tex]

[tex]9x=5[/tex]

[tex]\mathrm{Divide\:both\:sides\:by\:}9[/tex]

[tex]\frac{9x}{9}=\frac{5}{9}[/tex]

[tex]x=\frac{5}{9}[/tex]

Thus, the value of x=5/9 at y=0

Answer:

GCF = 49y³

Step-by-step explanation:

We need to find the GCF of 98y⁴ and 147y³.

Prime factorization of 98y⁴ = 7×7×2×y⁴

Prime factorization of 147y³ = 7×7×3×y³

Common factors are = 7×7y³

= 49y³

Hence, GCF is 49y³

Answer:

40 people

Step-by-step explanation:

you split 40 in half and half of forty is 20. you also have to split 16 in half which is 8. so for every 20 percent there will be 8 people so 8 x 5 is 40 so the answer is forty

Answer:

5%

Step-by-step explanation:

1500 * X = 75

X = 75/1500

X = .05 or 5%

Answer:

26

Step-by-step explanation:

If there are a total of 50 questions worth 130 points on Chenille’s history exam. There are 24 2-point questions are on Chenille’s test.

An equation is a statement that two expressions, which include variables and/or numbers, are equal. In essence, equations are questions, and efforts to systematically find solutions to these questions have been the driving forces behind the creation of mathematics.

It is given that, there are a total of 50 questions worth 130 points on Chenille’s history exam. Some of the questions are worth 5 points each, and the other questions are worth 2 points each.

We have to find the 2-point questions on Chenille’s test,

Suppose the number of questions worth 5 points and 2 points will be x and y respectively.

The obtained equation according to the given conditions is,

x+y=50

5x+2y=130

Put the value of y in equation 1 as

5x+250=130

5x=250-130

5x=120

x=24

The value of y will be 26.

Thus, if there are a total of 50 questions worth 130 points on Chenille’s history exam. There are 24 2-point questions are on Chenille’s test.

Learn more about the equation here,

https://brainly.com/question/10413253

#SPJ6

Answer:

30%

Step-by-step explanation:

30%

Answer:

Step-by-step explanation:

x² -14x+50= 0

this equation has 2 solutions because is a quadratic

the solurions are imaginary roots because the discriminant is less then 0

b²-4ac = (-14)²-4*1*50 = 194-200= -6

to find the actual roots use the quadratic formula

Answer:

True

Step-by-step explanation:

Answer:

12-12

Step-by-step explanation:

hope this helps tell me if it's right

Answer:

12 - 12

Step-by-step explanation:

If the temperature was originally 12°C it decreases by 12° then 12 - 12.

From 12:00 midnight to 6:00 am, the  temperature decreased by 12°C. If the original temperature was 12°C.

Question: Which expression can be used to represent this situation?

12:00 midnight temperature = 12 °C.

6:00 am temperature decreased  by 12 °C.

So 12 - 12.

Hope this helps (sorry if I'm wrong)

Answer:

We can make 48 cookies.

Step-by-step explanation:

60 percent of 120 = 72

120 - 72 = 48

I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

2.5% divide them lol msdibnasdu9brtu4ti8jrentnierbyyu0reyrpeinyrt