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3 years ago

Configuration for rubidium?

Mathematics

1 answer:

enot [183]3 years ago

4 0

Electron configuration
Kr 5s1

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A contractor purchases 3 dozen pairs of padded work gloves for $42.48. He incorrectly calculates the unit price as $14.16 per

Harrizon [31]

Answer:

1.18

Step-by-step explanation:

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3 years ago

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Amelia and her brother had a snow day, so they played in the snow for 3 hours. During that time, it snowed another 4.8 inches. I

damaskus [11]

Answer:

1.6 inches per hour. you would divide 4.8 by 3 which is equal to 1.6.

Step-by-step explanation:

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4 years ago

Which number produces an irrational number when added to 0.4

erastovalidia [21]

Answer:

0.31311311131111....

Step-by-step explanation:

We need to tell a number which when adds to 0.4 makes it a Irrational Number . We know that ,

Rational number :- The number in the form of p/q where p and q are integers and q is not equal to zero is called a Rational number .

Irrational number :- Non terminating and non repeating decimals are called irrational number .

Recall the property that :-

Property :- Sum of a Rational Number and a Irrational number is Irrational .

So basically here we can add any Irrational number to 0.4 to make it Irrational . One Irrational number is ,

$\rm\implies Irrational\ Number = 0.31311311131111...$

So when we add this to 0.4 , the result will be Irrational . That is ,

$\rm\implies 0.4 + 0.31311311131111 ... = 0.731311311131111 ..$

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3 years ago

Read 2 more answers

A line contains the points (1, –6) and (–2, 6). What is the slope of a line that is perpendicular to this line?

OlgaM077 [116]

First, find the slope of the line contains the points (1,-6) and (-2,6) using slope formula
m = $\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}$

plug in the numbers
m = $\dfrac{6-(-6)}{-2-1}$
m = $\dfrac{6+6}{-3}$
m = $\dfrac{12}{-3}$
m = -4

Second, determine the slope of perpendicular line
The slope of the perpendicular line is the opposite and reciprocal from the other line. Thus, the slope is $\dfrac{1}{4}$

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3 years ago

Solve for x: −2x − 4 > 8

OverLord2011 [107]

-2x - 4 > 8...add 4 to both sides
-2x > 8 + 4
-2x > 12...divide both sides by -2 and change inequality sign
x < 12/-2
x < -6

7 0

3 years ago