Find the area of the regular polygon. Round to the nearest tenth

Find The Area Of The Regular Polygon. Round To The Nearest Tenth

Answers

Answer 1

Answer:

1/2×base×height

1/2×8×8

32cm²


Related Questions

The community health clinic you volunteer for aims to develop a strategy allowing the most vulnerable members of the community to have first access to the Flu vaccine. The clinic has collected data finding that the total number of people in their service area is 50,000, 27% of the community is over the age of 65 and immunocompromised, and 11% of the community under 65 is immunocompromised. While the clinic wishes to market to all members of the community, immunocompromised people over 65 are their current priority.2. Explain in a one well-written paragraph, how you will analyze the data in this scenario to arrive at the answer you will provide in number 2.

Answers

In order to understand and prioritize the vaccination strategy for the community health clinic, first accurately assess the demographics of the community based on the data provided.

How to analyze the data ?

Calculating the absolute numbers of people in each group: over 65 and immunocompromised, and under 65 and immunocompromised. For this, we'll apply the given percentage to the total population of 50,000.

Knowing the total number of people in each category will help us understand the size of each target group and prioritize accordingly. The clinic's current priority is immunocompromised people over 65, so having the exact figure will aid in planning for vaccine supply and outreach strategies.

Furthermore, the analysis of this data can also aid in projecting the needs for future vaccine campaigns for the remaining community members. Finally, this detailed analysis will help in crafting an effective communication plan that emphasizes the clinic's priority of serving the most vulnerable first, while still acknowledging the needs of all community members.

Find out more on analyzing data at https://brainly.com/question/28132995

#SPJ1

Mary has a lemonade stand.Last week she spent $18.00 on supplies,but earned only $12.00.Did Mary make a profit ?Explain and show problem as a mathematical equation.

Answers

They need to sell at least 13 cups to gain profits.

Here, we have,

Givens

The initial cost is $1.20.

Each cup of lemonade costs 6 cents to make.

May's children sell 10 cents a cup.

First, we need to represents the cost of their investment.

0.06x = 1.20, because each cup costs 6 cents, and the initial costs of all is $1.20.

That means,

x= 20

They can produced 20 cups.

However, they already sell a cup for 10 cents. So, how many cups they need to sell to gain profits? We need to establish a similar relation,

0.10 x = 1.20

 x = 12

This means if they sell 12 cups, they will just cover the investment, that is, zero profits.

Therefore, they need to sell at least 13 cups to gain profits.

To learn more on multiplication click:

brainly.com/question/5992872

#SPJ1

complete question

Mary's children decide to run a lemonade stand to earn some extra money.The cost to start the business is $1.20 and each cup of lemonade costs 6 cents to make. If lemonade sells for 10 cents a cup,how many cups must Mary's children sell to make a profit?----Apply systems of equations

2) Factor by CTS: x² +12
please show work ​

Answers

The factored form of x² + 12 using the difference of squares formula is

(x + 2√3)(x - 2√3).

We have,

To factor x² + 12 using the difference of squares formula, we need to express it as the difference between two squares:

x² + 12 = x² + (2√3)²

Now we can use the difference of squares formula, which states that:

a² - b² = (a + b)(a - b)

In this case, we have a = x and b = 2√3. So we can write:

= x² + 12

= x² + (2√3)²

= (x + 2√3)(x - 2√3)

Therefore,

The factored form of x² + 12 using the difference of squares formula is

(x + 2√3)(x - 2√3).

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ1

A small toy rocket is launched from a 48-foot pad. The height (h, in feet) of the rocket t seconds after
taking off is given by the formula h = - 3t2 +0t + 48. How long will it take the rocket to hit the
ground?
t =

Answers

Okay, here are the steps to solve this problem:

1) The height (h) of the rocket t seconds after launch is given as: h = - 3t2 + 0t + 48

2) We want to find the time (t) when the rocket hits the ground (h = 0)

3) Set the formula equal to 0: - 3t2 + 0t + 48 = 0

4) Factor the left side: - 3(t2 - 0t) + 48 = 0

5) Solve for t2 - 0t: t2 - 0t = 16

6) Add 0t to both sides: t2 = 16 + 0t

7) Take the square root of both sides: t = 4

Therefore, the time for the rocket to hit the ground is 4 seconds.

So in this case, t = 4

Let me know if you have any other questions!

Answer:

4 seconds.

Step-by-step explanation:

When the rocket hits the ground, its height will be 0. Therefore, since we are given an expression for the height of the rocket dependent on the time, we can simply set it equal to 0 and solve for the time and find how long the rocket will take to hit the ground. I'm assuming the equation is[tex]h = -3t^{2} + 48[/tex]

Now set this equal to 0

[tex]0 = -3t^2+48[/tex]. Solve for t by isolating it.

[tex]-48 = -3t^2[/tex]

[tex]16 = t^2[/tex]

From here, by taking the square root, we see that t is either equal to 4 or -4 in seconds. Since we can't have negative time, we can clearly see that the answer is 4 seconds.

Hope this helps

Ciara needs 4 yards of fabric for a dress. She already had 2 1/4 yards of fabric Convert 32/5 to a mixed number

Answers

If Ciara already has 2 1/4 yards of fabric, she needs 4 - 2 1/4 = 1 3/4 yards of fabric more.

To convert 32/5 to a mixed number, we need to divide the numerator (32) by the denominator (5) and write the result as a mixed number.

32 ÷ 5 = 6 with a remainder of 2

Therefore, the mixed number is 6 2/5.

A chambered nautilus is a marine animal that lives in the outermost chamber of its shell

Answers

The chambered nautilus is a fascinating marine animal that belongs to the family of cephalopods.

It is notable for its unique, spiral-shaped shell that is divided into a series of chambers.

The nautilus lives in the outermost chamber of its shell, which it can control by adjusting the amount of gas and fluid inside it. This allows the nautilus to regulate its buoyancy and move up or down in the water column.

The nautilus has been around for millions of years and is sometimes called a "living fossil" because of its ancient lineage.

Unfortunately, due to overfishing and habitat destruction, many species of nautilus are now endangered.

To Know more about Marine animals here

https://brainly.com/question/3583133

#SPJ1

The given question is incomplete, the complete question is:

A chambered nautilus is a marine animal form which family?

The cosine of θ is −0.95. What is sin(θ)?

Answers

The value of sin(θ) is 0.31 and it lies in the third and fourth quadrants. if the value of the cosine of θ is −0.95.

cos(θ) = -0.95

To calculate the value of sin(θ), we can use the Pythagorean theorem:

[tex]sin^{2}[/tex] (θ) +[tex]cos^{2}[/tex] (θ) = 1

We can rearrange the Pythagorean identity to solve for sin(θ):

[tex]sin^{2}[/tex] (θ)= 1 - [tex]cos^{2}[/tex]

sin(θ) = ±[tex]\sqrt{1-cos^{2}}[/tex] *(θ)---------  (equation 1)

Substitute the value of the cosine of θ = −0.95 in Equation 1

sin(θ) = ±[tex]\sqrt{1-cos^{2}}[/tex] *(θ)

sin(θ) = ±[tex]\sqrt{(1 - 0.9025)}[/tex]

sin(θ) = ±[tex]\sqrt{0.0975}[/tex]

The positive value determines that the value is in the first and second quadrants, Negative shows the third and fourth quadrants.

sin(θ) = [tex]\sqrt{ 0.0975}[/tex]

sin(θ) = 0.312

Therefore, we can conclude that the value of sin(θ) is 0.312.

To learn more about cosine

https://brainly.com/question/29114352

#SPJ1

What are the solutions to the system of equations graphed?

Answers

Answer:

(- 2, 0 ) , (1, - 3 )

Step-by-step explanation:

the solutions to the system of equations are at the points of intersection with the curve and the straight line.

points of intersection are at (- 2, 0 ) and (1, - 3 ) , then

solutions are (- 2, 0 ) , (1, - 3 )

Can someone help me with this problem please

Suppose M is a matrix of size 9x10, c is a scalar, and the matrix computation cM is defined. What is the size of matrix cM?

----------------

Answers

If the size of matrix "M" is 9×10, and a scalar "c" is multiplied by matrix, then the size of "cM"  will be 9×10.

We know that when a scalar is multiplied to a matrix, each element of the matrix gets multiplied by that scalar.

In this case, the scalar "c" is multiplied with the Matrix "M";

So if a scalar "c" is multiplied by a matrix "M" of size 9×10, then the resulting matrix "cM" will also have the same number of rows and columns as the original matrix "M".

Therefore, the size of "cM" will also be 9×10.

Learn more about Matrix here

https://brainly.com/question/8349166

#SPJ1

What is the measure of this angle?

60
80
120
125

Answers

Answer:

60

Step-by-step explanation:

180 - 120 = 60

Following is a table for the present value of an annuity of $1 at compound interest

Answers

there is no table available

every year 5 rows and 5columns are increased . derive the formula for the number of students in each row

Answers

The number of students in each row after any number of years, as long as the increase in rows and columns is uniform every year.

Assuming that the increase in rows and columns is uniform every year, we can derive the formula for the number of students in each row as follows:

Let's start with the initial number of rows and columns, which we'll call R0 and C0, respectively, and the number of students in each row, which we'll call S.

After one year, the number of rows and columns will increase by 5, so we'll have R1 = R0 + 5 and C1 = C0 + 5. The total number of students will be R1 x S. We can also express this in terms of the initial number of rows and columns as:

R1 x S = (R0 + 5) x S

Expanding the brackets, we get:

R1 x S = R0 x S + 5 x S

Subtracting R0 x S from both sides, we get:

(R1 - R0) x S = 5 x S

Dividing both sides by 5 x (R1 - R0), we get:

S = 5 / (R1 - R0)

We can use this formula to calculate the number of students in each row after any number of years, as long as the increase in rows and columns is uniform every year.

for such more question on rows and columns

https://brainly.com/question/7331447

#SPJ11

Which equation can be used to solve for � xx in the following diagram?

Answers

Equation which can be used to solve for the value of x is

3x° + 2x° + 80 °= 180° .

Straight angle pair is the sum of two or more angles that are in pair of angles that form a straight line is always equal to 180°.

As shown in the diagram angle on the lines are -

3x ° , 80° , 2x° respectively

Sum of all these angle will be equal to 180°.

3x° + 2x° + 80° = 180

The correct equation to find the value of x is 3x° + 2x° + 80° = 180° .

To know more about equation click here :

https://brainly.com/question/31086219

#SPJ1

An Inverse Variation Includes The Points(3, 3)and(1, n).Find
n .

Answers

The inverse variation is y = 9/x, using that equation we can see that n = 9.

How to find the value of n?

An inverse variation between two variables x and y can be written as:

y = k/x

Where k is a constant.

We know that this inverse variation contains the point (3, 3), replacing these values we have:

3 = k/3

3*3 = k

9 = k

Then the inverse variation is:

y = 9/x

Now we want to find n such that (1, n) is on the relation above, then we will get:

n = 9/1

n = 9

Learn more about inverse variations at:

https://brainly.com/question/13998680

#SPJ1

Is this negative and odd or even and positive or negative and even and positive and odd?

Answers

Answer:

Hold on, our servers are swamped. Wait for your answer to fully loadHold on, our servers are swamped. Wait for your answer to fully loadHold on, our servers are swamped. Wait for your answer to fully loadHold on, our servers are swamped. Wait for your answer to fully load

Step-by-step explanation:

Hold on, our servers are swamped. Wait for your answer to fully loadHold on, our servers are swamped. Wait for your answer to fully load

S and P are the midpoints of the
legs, RT and QU, of trapezoid QRTU.
If QR
TU =
X?
= -6x + 37, PS = x + 33, and
= 2x + 41, what is the value of

Answers

The value of x in the trapezoid is 2.

How to find the side of a trapezoid?

The mid points of a trapezoid is a line that goes across from the middle of one leg to the middle of the other leg.

Using the mid point theorem, let's find the value of x in the trapezoid as follows:

PS = 1 / 2 (QR + TU)

PS = x + 33

QR = -6x + 37

TU = 2x + 41

Therefore,

x + 33 = 1 / 2 (-6x + 37 + 2x + 41)

x + 33 =  1 / 2 (-4x + 78)

x + 33 = -2x + 39

x + 2x = 39 - 33

3x = 6

divide both sides by 3

x = 6 / 3

x = 2

learn more on mid point here: https://brainly.com/question/31760033

#SPJ1

Can someone help me with this? Thank you

Answers

The area of the triangle is 6 sq units.

What is the area of the triangle?

The area of the triangle is calculated by applying the following formula;

A = ¹/₂ x b x h

where;

b is the base of the triangleh is the height of the triangle

The base of the triangle = 3 - 0 = 3

The vertical height of the triangle = 5 - 1 = 4

Area = ¹/₂ x 4 x 3

Area = 6 sq units.

Thus, the area of the triangle is a function of base and height.

Learn more about area of triangles here: https://brainly.com/question/21735282

#SPJ1

209 g = ___ kg

0.0209
0.209
20,900
209,000

Answers

the answer is 0.209
The answer is 0.209

Find the y intercept for a line with a slope or 2 that goes through (5, 4)

Answers

Answer:

y- intercept = - 6

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

here slope m = 2 , then

y = 2x + c ← is the partial equation

to find c substitute (5, 4 ) into the partial equation

4 = 2(5) + c = 10 + c ( subtract 10 from both sides )

- 6 = c

that is the y- intercept c = - 6

Work out the area of the shaded shape on the millimetre (mm) grid.
State the units with your answer.
The diagram is not drawn to scale.

Answers

The requried area of the shaded shape is 5 square millimeters.

From the figure,
The area of the green shaded area is given by:
The area of a single square is given as = 1 * 1 = 1 square millimeters.
Now there is 5 square in the shaded region, So the area is given as:

= 5 * 1 = 5 square millimeters.

Thus, the requried area of the shaded shape is 5 square millimeters.

Learn more about the area here:

https://brainly.com/question/14326675

#SPJ1

please answer all 3 questions

Answers

1. The equation of the form y = a • bˣ is y = 81 x (¹/₃)ˣ

2. His stamp should be worth approximately $7,851.47 after 6 years.

3. The equation of the form y = a • bˣ is y = (¹/₁₆) x 2²ˣ ⁺ ⁵

How did we get our values?

1. One will see that y is decreasing by a factor of 3 as x increases by 1. Therefore, we can write the equation as:

y = 81 x (¹/₃)ˣ

2. The increase in value of the stamp can be calculated using the formula:

V = P(1+r)ᵗ

where V is the future value, P is the present value, r is the annual interest rate as a decimal, and t is the number of years.

Substituting the given values:

V = 4900(1+0.075)⁶

V ≈ $7,851.47

Therefore, the stamp should be worth approximately $7,851.47 after 6 years.

3. One will see that y is increasing by a factor of 2 as x increases by 1. Therefore, we can write the equation as:

y = (1/16) x 2²ˣ ⁺ ⁵

learn more about equation from Data: https://brainly.com/question/30494840

#SPJ1

Find the greatest common factor of 56xy and 16y³.

Answers

Answer:

8y

Step-by-step explanation:

Lets put these two parts into addition to make it easier.

(y)56x + 16y^2

(8y)7x + 2y^2

8y is the GCF(grates common factor)

What is the domain of the function

Answers

Answer:

xs7

Step-by-step explanation:

You are considering a 5/1 ARM. What does the 1 represent?
A. The total number of years in the loan
B. The number of years that a fixed interest rate will be applied to the
loan
OC. The number of years between adjustments in the interest rate
D. The interest rate of the initial, fixed-rate loan period
SUBMIT

Answers

As far as a 5/1 ARM is concerned, note that the "1" refers to how often the rate can be adjusted after the initial fixed-rate period ends.

What is 5/1 ARM?

A 5/1 ARM is an adjustable rate mortgage loan (ARM) that has a fixed interest rate for the first five years. Following that, the 5/1 ARM transitions to an adjustable interest rate for the remainder of its term. The terms "variable" and "adjustable" are frequently used synonymously.

If you want a low monthly payment and don't expect to stay in your house for long, a 5/1 adjustable-rate mortgage (ARM) loan may be worth considering. For the first five years, rates on 5/1 ARMs are typically lower than rates on 30-year fixed-rate mortgages.

Learn more about 5/1 ARM:
https://brainly.com/question/31388787
#SPJ1

Which condition would prove ΔJKL ~ ΔXYZ?

Answers

The condition that will prove the two triangles similar is

side JL = 8 * side ZX

angle L = angle Z

What  are similar triangles?

Similar triangles are  triangles which have the  similar shape however not necessarily the equal size. More officially, two triangles are comparable if their corresponding angles are congruent and their corresponding aspects are in proportion.

This means that if we had been to scale one triangle up or down uniformly, the ensuing triangle could be much like the original triangle.

In the figure, the scale is 8

Learn more about similar triangles

https://brainly.com/question/14285697

#SPJ1

Olivia, Muhammad, and Cameron had a challenge to see who could bike the farthest in one day. Olivia biked 8 miles, Muhammad biked 2 times as many miles as Cameron and Cameron biked 4 times as many miles as Olivia. How many miles did Muhammad bike?

Answers

Answer:

Muhammad biked 64 miles

Step-by-step explanation:

Olivia biked 8 miles.

Cameron biked 4 times as many miles as Olivia, and Muhammad biked 2 times as many miles as Cameron.

Cameron: 4 x 8 = 32

Cameron biked 32 m.

Muhammad: 32 x 2 = 64

Muhammad biked 64 miles.

please help with geometric series

Answers

Answer:

[tex]C. -5.15\cdot10^{13}[/tex]

Step-by-step explanation:

[tex]Common\ ratio\ (r)=\frac{a_{n+1}}{a_n}=(-3)\\\\Sum\ (S_n)=\frac{a(r^n-1)}{r-1}\ \ (r\neq1)\\\\\implies S_n=\frac{1\ (\ (-3)^{30}-1\ )}{-4}\\\\\implies S_n=\frac{205891132094649-1}{-4}\\\\\approx\frac{206\cdot10^{12}}{-4}\\\\\approx-5.15\cdot10^{13}[/tex]

The nth term of an arithmetic sequence is given by un=15-3n.
a. [1 mark] State the value of the first term, u1.
b. [2 marks] Given that the nth term of this sequence is -33, find the value of n.
c. [2 marks] Find the common difference, d.

Answers

a. The first term of the arithmetic sequence is 12.

b. The value of n for which the nth term is -33 is 16.

c. The common difference of the arithmetic sequence is -3.

a. The first term, u1, can be found by substituting n=1 into the given formula for the nth term:

u1 = 15 - 3(1) = 12

b. To find the value of n for which the nth term is -33, we set the formula for the nth term equal to -33 and solve for n:

un = 15 - 3n = -33

Adding 3n to both sides, we get:

15 = -33 + 3n

Adding 33 to both sides, we get:

48 = 3n

Dividing both sides by 3, we get:

n = 16

c. The common difference, d, is the difference between any two consecutive terms of the sequence. To find d, we can subtract any two consecutive terms, such as u2 and u1:

u2 = 15 - 3(2) = 9

u1 = 15 - 3(1) = 12

d = u2 - u1 = 9 - 12 = -3

for such more question on arithmetic sequence

https://brainly.com/question/30194025

#SPJ11

A triangle has side lengths of 13, 18, and 24. Is it a right triangle?

Answers

Answer:

No, it is not a right triangle.

[tex] \sqrt{ {13}^{2} + \ {18}^{2} } = \sqrt{169 + 324} = \sqrt{493} [/tex]

√493 is not equal to 24.

Answer:

it doesn't

Step-by-step explanation:

it doesn't follow pythagoras theorem

a² = b² + c²

60% of the books in a library are for adults, 5% are for young people and the rest are for children. If there are 280 books for children, how many books are there altogether?

Answers

Answer:

800 books

problem solving steps:

adults:60%

young people:5%

children=100%-60%-5%

=35%

35%=280 books

1%=280÷35

=8

100%=800

so,there are 800 books

Other Questions
let a2 = a. prove that either a is singular or det(a) = 1 relative to the current dsm-iv system of classifying mental disorders, the five-factor model suggests question Q#6 If a roan bull is crossed with a white cow, what percent of offspring will have a roan phenotype? 100% 753 25 SON Question 7 Q#7 Both Mrs. Smith and Mrs Jones had baby girls the same day in the same hospital. Mrs. Smith took home a baby girl, who she ca Shirley. Mrs. Jones took home a baby girl named Jane. Mrs. Jones began to suspect however, that her child and the Smith baby had accidentally switched in the nursery. Blood tests were made. Mr. Smith is Type A Mes Smith is Type B. Mr. Jones is Type A Mestone Type A. Shirley is Type O, and Jane is Type B. Had a mix-up occurred, or is it impossible to tell with the given information it is impossible to tell with the oven Information Alkup occured. The Smiths could not have had a bay with type o blood Amb up occured. The Jones could not have had a baby with Type B blood Amik up occured. Neither parents could have produced a baby with the stated blood type Question 8 Gomovies.com Q8 If a man of genotype i marries a woman of genotype what possible blood types could their children have their children could have A Bor AB blood types their children could have A st As blood types their children could have A B. ABor blood types the children could have A or blood tyres Search O 31 Question 2 of 10Which question would be most appropriate to ask yourself when consideringhow to address your audience for a procedural document?OA. What research do I need to do to understand my topic?B. Will readers respond best to a formal or informal style?OC. Why can't I find a good image to illustrate my points?OD. Where can I go for information about my topic?WSUBMIT if you are asked to speak for 10 minutes at a luncheon meeting, it is appropriate for you to go 5 or 10 minutes beyond this.t/F For each question, you will want to answer the following:What type of analysis should be used to answer this question? Why?You should run the proper analysis and then interpret the answer.********If the restaurant is planning to have a waterfront view, should they plan to build segments around marital status?If the restaurant is planning to target a more affluent audience, what should they consider with elegant vs. simple decor options?Should the restaurant choose a jazz combo or a string quartet?What is the average family size of the population under study? Put an X next to all the statements that can be considered signs of global warming.A. The concentration of CO2 is at 400 parts per million (ppm) today. It has never been more than 300 ppm in the past 800,000 years.B. Global sea level rose about 6.7 in. in the past century. The rate in the past decade, however, is nearly double that of the past century.C. Since 1880, the 10 hottest years on record have been in the past 17 years.D. Antarctica lost about 36 cubic miles of ice between 2002 and 2005.E. Since the beginning of the Industrial Revolution in the 1880s, the acidity of surface ocean waters has increased by about 30 percent.F. The area covered by sea ice in the Arctic at the end of summer has shrunk by about 40% since 1979.G. Currently, 37 glaciers in Glacier National Park are retreating.H. Since 1990, data show that birds are beginning their northern migration earlier and earlier each yearparticularly birds that migrate over shorter distances. They are having trouble finding their normal food sources at their destination.I. The amount of heavy downpours has increased 74% in New England from 1958to 2011. which group of teenagers in the u.s. has shown the steepest decline in thenumber of teenage births in the past decade Using multiple 4M X 8 RAM chips (see below) plus a decoder, construct the block diagram of a 16M * 16 RAM system. Hint: 1 million = 220. A) [8 pts] Please answer the following questions. How many 4M 8 RAM chips are needed? How many address lines does the memory system require? How many data lines does the memory system require? What kind of address decoder is required? B) [7 pts] Now design the system below. Be sure you label the memory system inputs, Addr, R/W, and MemSel, and the system's outputs Do-Dis. Also label bus widths, and inputs and outputs of any required decoders. Put a star on the chips containing memory location 0. You can draw the circuit on a white paper using a ruler, and then, take a photo of it. Next, you can insert the photo here. Ao - A21 4 MX 8 CS R/W Do-D A typical airbag in a car is 139 liters. How many grams of sodium azide needs to be loaded into an airbag to fully inflate it at standard temperature and pressure? Which order pair represents a point that is 3 points to the left and 2 points above T Complete and balance each nuclear equation by supplying the missing particle.Na112410 +Pt7817024 +Xe54118I53118 + A transverse wave on a string is described by the following wave function. y = 0.095 sin .( /11 x + 3t) where x and y are in meters and t is in seconds. (a) Determine the transverse speed at t = 0.190 s for an element of the string located at x = 1.40 m. ____ m/s (b) Determine the transverse acceleration at t = 0.190 s for an element of the string located at x = 1.40 m. ____ m/s2 (c) What is the wavelength of this wave? ____ m (d) What is the period of this wave? ____ S (e) What is the speed of propagation of this wave? ____ m/s The following are electronic configurations of five elements. A= 2,8,2 B= 2,8,6 C= 2,8,8 D= 2,8,7 E= 2,8,3 (a) Which element is unlikely to react with the others? (b) Which elements will react to form covalent compounds? (c) Which elements will react to form ionic solids? Give the common valency of the elements when they form ionic solids. Which of these bonds is the weakest: ionic bond; covalent bond; hydrogen bond? a laser beam with wavelength = 650 nm hits a grating with n = 4250 grooves per centimeter. Part (a) Calculate the grating spacing, d, in centimeters. Part (b) Find the sin of the angle, 2, at which the 2nd order maximum will be observed, in terms of d and . Part (c) Calculate the numerical value of 2 in degrees. find the area of the surface. the part of the surface z = 1 4x 3y2 that lies above the triangle with vertices (0, 0), (0, 1), (2, 1). using noble gas notation write the electron configuration for the iron(iii) ion. how did china and india slow their population growth down? what are the advantages and disadvantages of these policies? how much more kinetic energy does a 6 kg bowling ball have when it is rolling at 16 mph then when it is rolling at 14 mph the nurse should assess a patient taking a drug with anticholinergic properties for inhibited function of the: group of answer choices a. parasympathetic nervous system. b. sympathetic nervous system. c. reticular activating system. d. medulla oblongata.