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Help with this math problem

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### An element has two naturally occurring isotopes. One is 10.013 amu and is 19.9% abundant. The other is 11.01 amu and is 80.1%

An element has two naturally occurring isotopes. One is 10.013 amu and is 19.9% abundant. The other is 11.01 amu and is 80.1% abundant. What is the average atomic mass? What element is it?...

### Describe some methods used to determine phylogeny

Describe some methods used to determine phylogeny...

### Which is the equation of a line that has a slope of Negative two-thirds and passes through point (–3,

Which is the equation of a line that has a slope of Negative two-thirds and passes through point (–3, –1)? y = negative two-thirds x + 1 y = negative two-thirds x + 3 y = negative two-thirds x minus 1 y = negative two-thirds x minus 3...

### Women made important contributions to the vedic texts. select the best answer from the

Women made important contributions to the vedic texts. select the best answer from the choices provided t f...

### Which of the following is a solution of 4x + 5y ≤ 20? a. (0, 5) b. (5, 7) c. (8, 0) d. (1, 1)

Which of the following is a solution of 4x + 5y ≤ 20? a. (0, 5) b. (5, 7) c. (8, 0) d. (1, 1)...

### Identify two long term affects of bulimia a. healthy body composition b. fatigue c. gum disease d. weight gain

Identify two long term affects of bulimia a. healthy body composition b. fatigue c. gum disease d. weight gain...

### Does anyone know the answer to these questions1. What made Rome's expansion possible?2. What was the Roman army organized into?3.

Does anyone know the answer to these questions 1. What made Rome's expansion possible? 2. What was the Roman army organized into? 3. What are centurions? 4. How did Rome treat the people they conquered in Italy? 5. When Rome set its sights on the island of Sicily, what trading city did they come i...

### What is true about the complex number -5 - 5i? check all that apply. a. the modulus is 5. b. it lies in quadrant 3. c. it

What is true about the complex number -5 - 5i? check all that apply. a. the modulus is 5. b. it lies in quadrant 3. c. it lies in quadrant 2. d. the modulus is 5 square root of 2....

### Which Enlightenment idea was part of the Declaration of Independence?

Which Enlightenment idea was part of the Declaration of Independence? $Which Enlightenment idea was part of the Declaration of Independence?$...

### Choose the answer that does not complete the sentence correctly. los estudiantes la lección.

Choose the answer that does not complete the sentence correctly. los estudiantes la lección. comprenden beben leen hacen...

### In an ideal diesel cycle, indicate whether the following statements are true or false: a)-all the processes

In an ideal diesel cycle, indicate whether the following statements are true or false: a)-all the processes are internally reversible. b)- cycle efficiency increases with the maximum temperature. c)- cycle efficiency depends on the compression ratio only....

### An insurance company is a. not a financial intermediary because they do not take direct deposits and

An insurance company is a. not a financial intermediary because they do not take direct deposits and do not make loans. b. a financial intermediary because they take premiums and use them to purchase financial securities. c. not a financial intermediary because financial intermediaries act as a...

### How does the poem 'the lady of shalott' by alfred, lord tennyson convey the position of victorian women?

How does the poem "the lady of shalott" by alfred, lord tennyson convey the position of victorian women? a curse is on her if she stay to look down to camelot. she knows not what the curse may be, and so she weaveth steadily, and little other care hath she, the lady of shalott. and moving thro' a m...

### You are asked to copy a segment CD, construct a segment bisector by paper folding, and label themidpoint M. Order the steps of this construction=

You are asked to copy a segment CD, construct a segment bisector by paper folding, and label the midpoint M. Order the steps of this construction = Use a compass and straightedge to construct a copy of CD. = Label the intersection point M. = Fold the paper so C is on top of D. = Label the segment e...

### A solution has a pH of 11.75. Calculate the of the solution.

A solution has a pH of 11.75. Calculate the of the solution....

### Why was redundancy trade, e. g., trading corn for corn and meat for meat, an important part of the Plains

Why was redundancy trade, e. g., trading corn for corn and meat for meat, an important part of the Plains trading system?...

### How far can scotty walk in 22 , 14 and 34p minutes using the equation y = 0.25/3x?

How far can scotty walk in 22 , 14 and 34p minutes using the equation y = 0.25/3x? $How far can scotty walk in 22 , 14 and 34p minutes using the equation y = 0.25/3x?$...

### The researchers analyzed 962 polychaete species sampled from 68 field sites worldwide, each from a low-oxygen setting below 150

The researchers analyzed 962 polychaete species sampled from 68 field sites worldwide, each from a low-oxygen setting below 150 m water depth. List one or more variables that the researchers likely were trying to control by collecting so many data points....