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3 years ago

What element is 1s22s22p63s23p63d104s1

Mathematics

2 answers:

Dimas [21]3 years ago

7 0

Answer: copper

Step-by-step explanation: 1s22s22p63s23p63d104s1 is the election configuraction

klio [65]3 years ago

6 0

Answer:

Copper

Step-by-step explanation:

Count the exponents and this tells you the proton amount (atomic number)

and electron count

This is the electron configuration

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The Smith Family went out to to dinner.

KatRina [158]

First I will find the tip and then I will add that to the total and THEN I will add my sales tax to find 6% you have to multiply by 0.06. to find 15% you have to multiply by 0.15

0.06 * 29.85 = 1.79
29.85 + 1.79 = 31.64
0.15 * 31.64 = 4.74
31.64 + 4.74 = $36.38

5 0

3 years ago

What is the Circumference of a Circle with a radius of 8 m?

nata0808 [166]

Answer:

C = 50.24

Step-by-step explanation:

C = 2πr

C = 2π(8)

C = 16π

C = 50.24

Tell me if I am wrong.

Can I get brainliest

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4 years ago

An ectopic pregnancy is twice as likely to develop when the pregnant woman is a smoker as it iswhen she is a nonsmoker. If 32 pe

Dmitriy789 [7]

Answer:

48.48%

Step-by-step explanation:

Let's assume that there is a number N of women.

32% of these are smokers, then there are 0.32*N smokers

then 68% of these are non-smokers, then there are 0.68*N non-smokers.

Let's assume that the probability of having a ectopic pregnancy for a non-smoker is p (and the probability for a smoker will be 2*p)

Then the number of women with an ectopic pregnancy that are non-smokers is:

p*0.68*N

The number of women with an ectopic pregnancy that are smokers is:

2*p*0.32*N

Then the total number of women with an ectopic pregnancy will be:

p*0.68*N + 2*p*0.32*N

The percentage of women having an ectopic pregnancy that are smokers is equal to the quotient between the number of women with an ectopic pregnancy that are smokers and the total number of women with an ectopic pregnancy, all that times 100%.

The percentage is:

$P = \frac{2*p*0.32*N}{p*0.68*N + 2*p*0.32*N} *100\%$

Taking p and N as common factors, we get:

$P = \frac{2*p*0.32*N}{p*0.68*N + 2*p*0.32*N} *100\% = \frac{N*p}{N*p} \frac{2*0.32}{0.68 + 2*0.32} *100\%$

Then we get:

$\frac{2*0.32}{0.68 + 2*0.32} *100\% = 48.48\%$

8 0

3 years ago

Solve for x<br><br> x-4<br> — = 5<br> y+2

yulyashka [42]

I think the question is wrong!

It must be

x-4

___= 5

x+2

Answer: x - 4= 5x + 10

or,-10 -4 = 5x - x

or, -14=4x

or,-14/4= x

Therefore, x = -14/4

5 0

4 years ago

Find the slope(m) and y-intercept (b) of each representation below.

Anika [276]

<h3>Answer:</h3>

m= 15

b= 45

y= 15x +45

<h3>Concept:</h3>

<u>Overall equation</u>

The equation of a line in slope-intercept form is given by y= mx +b, where m is the slope and b is the y-intercept.

<u>Slope, m</u>

The slope is the measure of how steep the line is. It also defines how the y-axis changes with respect to the x-axis. The formula for finding slope is as shown below.

$\boxed{\text{Slope}=\frac{y_1-y_2}{x_1-x_2} }$

where $(x_1,y_1)$ is the first coordinate and $(x_2,y_2)$ is the second coordinate

<u>y-intercept, b</u>

This is the y-value in which the line cuts through the y-axis (vertical axis).

<h3>Working:</h3>

<u>Slope, m</u>

Let's identify two pairs of coordinates on the line.

2 square units on the y-axis represent $30. Thus, 1 unit on the y-axis represents $15.

The 2 points are: (0, 45) and (5, 120)

Substitute the 2 points into the slope formula:

Slope

= $\frac{120-45}{5-0}$

<em>= </em> $\frac{75}{5}$

= 15

Thus, m= 15.

<u>y-intercept, b</u>

From the graph, the line cuts through the y-axis at y= 45.

Thus, b= 45.

<u>Overall equation</u>

Substitute m= 15 & b= 45 into y= mx +b:

∴ The equation of the line is y= 15x +45.

<h3>Additional:</h3>

To learn more about slope-intercept form, do check out: brainly.com/question/26351470

6 0

1 year ago