Find the value of each variable provide proofs

Find The Value Of Each Variable Provide Proofs

Answers

Answer 1

The value of x is 18.

The value of y is 15.6.

What is the Pythagorean theorem?

Pythagorean theorem states that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

We have,

From the figure,

Sin 30 = 9/x

1/2 = 9/x

x = 9 x 2

x = 18

Now,

Using the Pythagorean theorem.

x² = 9² + y²

18² = 81 + y²

y² = 325 - 81

y = √244

y = 15.6

Thus,

x = 18

y = 15.6

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Related Questions

(Likelihood MC)
A collector has items including baseball cards, gold coins, and stamps in a box. If P(gold coin) 50%, interpret the likelihood of randomly selecting a gold coin from the box.
Likely
Unlikely
Equally likely and unlikely
This value is not possible to represent probability of a chance event

Answers

Answer: The likelihood of randomly selecting a gold coin from the box is "Likely."

When the probability of an event is 50%, it means that there is an equal chance of the event happening or not happening. In this case, the probability of randomly selecting a gold coin from the box is 50%, so it is likely to occur.

Step-by-step explanation:

3
The volume of a sphere is given by V = Tr³, where r is the radius.
Find the inverse function. Describe what it represents.

Answers

The inverse function is  v⁻¹ = ( v/T)^1/3

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that the formula of the volume of the sphere is,

⇒ v = 4/3 πr³

T = 4/3π

Now,

To determine the inverse function we can solve the formula for the term r as;

⇒ v = 4/3 πr³

Multiply by 3/4 we get;

⇒ 3v/4 = πr³

Divide by π both side, we get;

⇒ 3v/4π = r³

Substitute r = v⁻¹ in above equation, we get;

⇒  v⁻¹ = ( v/T)^1/3

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Rewrite in simplest terms: 6(4y+8)−2y

Answers

22y+48

Distribute the 6 to (4y+8) so it becomes 24y + 48 then subtract 2y
Final answer:

The simplification process of the expression 6(4y+8)−2y involves distributing '6' to '4y' and '8', and then combining like terms, yielding the simplified expression as 22y+48.

Explanation:

To rewrite the given expression in simplest terms, distribute the 6 to the terms inside the parentheses:

6 * 4y = 24y6 * 8 = 48

Now subtract 2y:

24y + 48 - 2y = 22y + 48

So, the expression 6(4y+8)−2y can be simplified to 22y + 48.

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please help!! Describe an octant's main features​

Answers

An octant's main features are :

Axes Positive and negative regions Quadrants

What are the main features of an octant ?

An octant is formed by three perpendicular axes, labeled X, Y, and Z. These axes intersect at a common point called the origin. Each octant contains both positive and negative values along the X, Y, and Z axes. The positive region is located on one side of each axis, while the negative region is on the other side.

Each of the three axes divides an octant into two quadrants. These quadrants are numbered from 1 to 8, with quadrant 1 being in the positive X, Y, and Z regions and quadrant 8 being in the negative X, Y, and Z regions.

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Which rational function has the most solutions in common with the function y=2x+6

Answers

Answer: Rational functions are defined as the ratio of two polynomials. A rational function has the most solutions in common with the function y = 2x + 6 if their graphs intersect at the most points.

If a rational function has the same degree as the polynomial function y = 2x + 6, which is degree 1, and has a leading coefficient that is the same sign as the leading coefficient of y = 2x + 6, then their graphs will intersect at the most points.

One such rational function that has the same degree as y = 2x + 6 and has a leading coefficient that is the same sign is:

y = (2x + 6) / 1

So the rational function y = (2x + 6) / 1 has the most solutions in common with the function y = 2x + 6.

Step-by-step explanation:

please help!! i’m confused

Answers

The method that can be used to prove that the triangles are congruent is B. AAS.

How to prove the congruence ?

If all three corresponding sides and all three corresponding angles are equal in size, two triangles are said to be congruent. Slide, twist, flip, and turn these triangles to create an identical appearance. They are in alignment with one another when moved.

Angle-Angle-Side is abbreviated as AAS. The triangles are said to be congruent when two angles and a non-included side of one triangle match the corresponding angles and sides of another triangle.

There are two angles in the two triangles that are shown to be equal and there is also a side of one triangle that is equal to anther side. These triangles are therefore congruent.

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Using the Rule of 70, what approximate interest rate would be needed for an investment
of $14,000 to double by the end of 32 years?

A22.49
B 45.7%
C 2.19%

Answers

Using the Rule of 70, the approximate interest rate that would be needed for an investment of $14,000 to double by the end of 32 years can be calculated as follows:

The formula for the Rule of 70 is:

Number of years to double = 70 / interest rate (as a decimal)

Solving for the interest rate:

interest rate (as a decimal) = 70 / number of years to double

So, if you want to double your investment in 32 years, you can plug in the number of years:

interest rate (as a decimal) = 70 / 32

interest rate (as a decimal) = 2.188

Converting this decimal to a percentage, the interest rate would be approximately 2.19% (rounded to two decimal places). So, the answer is C: 2.19%.

line u - Line v, what is the value of x?

Answers

16=90+6

X=96/16


Solve


Solution


X=6

What is the prime factorization of 51?

Answers

The prime factorization of 51 is 3 * 17.

if Joaquin bought a lawn mower for $519.20 on a 20% off sale what was the original price of the mower

Answers

Answer: The original price of the lawn mower was $649

Step-by-step explanation:

If Joaquin bought the lawn mower for $519.20 after a 20% discount, it means that he paid only 80% of the original price. We can use this information to calculate the original price of the mower by setting up the following equation:

0.8x = 519.20

where x is the original price of the lawn mower. To solve for x, we can divide both sides of the equation by 0.8:

x = 519.20 / 0.8

x = $649

A town's population of 25000 is expected to decrease at a rate of 6.5% per year. What will the population be in 10 years. Round your answer to the nearest whole number.

Answers

The population of the town after 10 years is expected to be about 12766

What will the population be in 10 years.

We can use the formula for exponential decay to find the population of the town after 10 years.

The formula is:

P = P₀ * (1 - r)^t

Where P₀ is the initial population, r is the annual decay rate as a decimal (in this case, r = 0.065), t is the time in years, and P is the population after t years.

Substituting the given values into the formula, we get:

P = 25000 * (1 - 0.065)^10

Simplifying and evaluating using a calculator:

P = 12766

Hence, the population is expected to be about 12766 .

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Which inequality represents all the solutions of 4(3x + 2) < 5(3x − 2)? Select the correct answer.

Answers

Answer:

x > 6

Step-by-step explanation:

4(3x+2) < 5(3x-2)

12x+8 < 15x-10

12x-15x < -10-8

-3x < -18

3x > 18

x> 6

20. A popular pizza parlor charges $12 for a large cheese pizza plus $1.50 for each additional topping. The
total cost, C, of a pizza with T toppings can be represented by C = 1.50T + 12. What is the domain in
the context of the problem situation?

Answers

Answer:

efgdfhncdrt gguhd r g sixtieth sex

You sell bracelets for $2 each and necklaces for $3 each at a local flea market. You collect $95, selling a total of 37 jewelry items. How many of each type did you sell?

Answers

Answer: You sold 16 bracelets and 21 necklaces

Step-by-step explanation

X# Bracelets        x+y=37     -2(x+y=37)     -2x-2y= -74      x+21=37

Y# Necklaces      2x+3y=95     [tex]\frac{+(2x+3y=95)}{y=21}[/tex]          x=16

              You sold 16 bracelets and 21 Necklaces

Suppose that you would like to select a sample of 50 students at your school in order to learn something about how many hours per week, on average, students at your school spend engaged in a particular activity (such as studying, surfing the web, or watching TV)

Answers

To select a sample of 50 students at your school in order to learn something about how many hours per week, on average, students at your school spend engaged in a particular activity, you could use random sampling.

Random sampling involves selecting a sample of individuals from a larger population in a way that ensures each individual has an equal chance of being selected. This helps ensure that the sample is representative of the larger population and can provide accurate results.

Here are the steps you could follow to select a random sample of 50 students at your school:

1. Obtain a list of all the students at your school. This could be a roster or a directory.
2. Assign each student a unique number.
3. Use a random number generator to select 50 numbers from the list of student numbers.
4. Select the students whose numbers were chosen by the random number generator as your sample.

By following these steps, you can ensure that your sample is randomly selected and representative of the larger population of students at your school. This will allow you to accurately estimate how many hours per week, on average, students at your school spend engaged in a particular activity.

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Show all work to multiply (2+√-25)(4-√-100).

Answers

Product of multiplication of (2+√-25) and (4-√-100) is 58.

What are complex numbers?

Complex numbers are the numbers that are expressed in the form of a+ib where, a,b are real numbers and 'i' is an imaginary number called “iota”. The value of i = (√-1).

For example, 6+7i is a complex number, where 6 is a real number and 7i is an imaginary number.

Given complex numbers

(2+√-25) and (4 -√-100)

√-25 = √(5² . -1) = 5√-1

i = √-1

√-25  = 5i

√-100 = √(10² . -1)

√-100 = 10i

Multiplying both numbers

(2+√-25) . (4 -√-100)

then

= (2 + 5i) . (4 - 10i)

Using FOIL method

(a + b)(c + d) = ac + ad + bc + bd

= 8 - 20i + 20i - 50i²

= 8 - 50i²

i² = -1

= 8 + 50

= 58

Hence, 58 is the product of multiplication of (2+√-25)(4-√-100)

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A triangle has integer side lengths 2, 5 and x. What is the median of all possible
values of x?

Answers

The median of all possible values of x is 5.

What is Triangle?

A triangle is a three-sided polygon that consists of three edges and three vertices.

To find the median of all possible values of x, we need to find all the possible values of x first.

By the triangle inequality, we know that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side. So, we can write:

2 + 5 > x

2 + x > 5

5 + x > 2

Simplifying each inequality, we get:

7 > x

x > 3

x > -3

The smallest possible integer value for x is 4 and the largest possible integer value for x is 6.

Therefore, the possible integer values for x are 4, 5, and 6.

Since we have an odd number of values, the median is simply the middle value, which is 5.

Therefore, the median of all possible values of x is 5.

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How do you find Van t Hoff?

Answers

The formula for Van 't Hoff's law, which is also known as the law of osmotic pressure, is: П = iMRT, where: Π is the osmotic pressure of the solution,

i is the van 't Hoff factor, which is a measure of the number of particles a solute molecule dissociates into in solution, M is the molar concentration of the solute, R is the gas constant, and T is the absolute temperature. Van 't Hoff is a term used to refer to a Dutch chemist named Jacobus Henricus van 't Hoff, who was known for his work on solutions, chemical equilibrium, and the laws of thermodynamics. To find Van 't Hoff, you can do any of the following: Research: You can learn about Van 't Hoff by doing research on his life and work. There are many online and offline resources available that provide information about his contributions to chemistry and his scientific achievements. Education: If you are a student of chemistry, you are likely to encounter Van 't Hoff's name in your coursework. You can learn about his theories and concepts in your chemistry classes or by consulting your textbooks. Application: You can apply Van 't Hoff's laws and principles in solving problems related to chemical equilibrium, colligative properties of solutions, and other thermodynamic concepts. This may involve using mathematical formulas and equations that are based on his work. In summary, Van 't Hoff refers to a Dutch chemist known for his work in thermodynamics, solutions, and chemical equilibrium. You can learn about his contributions to chemistry through research, education, and application of his principles in problem-solving.

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​E = (children who go to the park),
T = {children who play tennis) ,
G = {children who play golf}
120 children go to the park. 50 play tennis. 75 play golf. 25 do not play tennis or golf.
(a) Show this information in the Venn diagram.
(b) How many children play both golf and tennis?​​

Answers

Answer:

125 children play tennis and golf

don't forget to follow me ,

Answer == 125

75 play Golf
50 play Tennis

75 + 50 = 125

z=-4+5i what is |z|=√

Answers

Answer:

Use app

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Class 11

>>Applied Mathematics

>>Number theory

>>Complex Numbers

>>The complex number z satisfying the equa

Question

The complex number z satisfying the equations ∣z∣−4=∣z−i∣−∣z+5i∣=0, is

This question has multiple correct options

A

3−i

B

23−2i

C

−23−2i

D

0

Medium

Open in App

Updated on : 2022-09-05

Solution

Verified by Toppr

Correct options are B) and C)

We have two equation ∣z∣−4=0 and ∣z−i∣−∣z+5i∣=0

Putting z=x+iy i.e x2+y2=16    ....(1)

and ∣x+iy−i∣=∣x+iy+5i∣

⇒x2+(y−1)2=x2+(y+5)2

⇒y=−2   ...(2)

Putting y=−2 in (1), 

x2+4=16⇒x=±2

Step-by-step explanation:

Hence the complex numbers z satisfying the given equation are 

z1=23−2i and z2=−23−2i

For what value of x is the given parallelogram a rhombus?

Answers

The value of x the given parallelogram a rhombus is 18

How to determine the value of x

From the question, we have the following parameters that can be used in our computation:

The quadrilateral that is a rhombus

The diagonals of rhombus bisect each other

Using the above as a guide, we have the following:

Angle 1 = A

Substitute the known values in the above equation, so, we have the following representation

5x - 30 = 3x + 6

Evaluate

2x = 36

Divide

x = 18

Hence, the value is 18

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An item has a listed price of 30$. If the sales tax rate is 8%, how much is the sales tax (in dollars)?

Answers

Answer:

32.4

Step-by-step explanation:

8% of 30 is 2.4. So, 2.4 + 30 is 32.4.

Question 9
Triangle ABC has vertices of
A (2,4)
B (3,7)
C (7,4)
What will be the vertices of Triangle A'B'C' after a dilation of k = 2, centered at point A?
A'
B’
C’
I NEED HELP

Answers

The coordinates of the triangle after the dilation of k = 2 is given by

A' ( 4 , 8 ) , B' ( 6 , 14 ) and C' ( 14 , 8 )

What is Dilation?

Resizing an item uses a transition called Dilation. Dilation is used to enlarge or contract the items. The result of this transformation is an image with the same shape as the original. However, there is a variation in the shape's size. Dilation transformations ensure that the shape will stay the same and that corresponding angles will be congruent

Given data ,

Let the triangle be represented as ABC

Now , let the dilated triangle be represented as A'B'C'

And , the coordinates of the triangle ABC are

The coordinate of A = A ( 2 , 4 )

The coordinate of B = B ( 3 , 7 )

The coordinate of C = C ( 7 , 4 )

And , the dilation factor k = 2

So , the new coordinates of the dilated triangle are

The coordinate of A' = A' ( 4 , 8 )

The coordinate of B' = B' ( 6 , 14 )

The coordinate of C' = C' ( 14 , 8 )

Hence , the triangle is dilated by a scale factor of 2

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4.) You roll a number cube twice. Find the probability that the first roll shows a five, and then
che second roll shows a six.

Answers

The probability of rolling a 5 and then 6 is 1/36

How to determine the probability

From the question, we have the following parameters that can be used in our computation:

Number cube rolled twice

The sample space of each number cube is

Sample space = {1. 2. 3. 4. 5. 6}

From the above entries, we have

P(5) =1/6

P(6) = 1/6

Using the above as a guide, we have the following:

P = 1/6 * 1/6

Evaluate

P = 1/36

Hence, the probability is 1/36

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Determine the equation of a line in standard form which passes through the
point (2,-8) and perpendicular to the line-3x -9y-12.

Answers

Answer:

3x - y - 2 = 0

Step-by-step explanation:

The line-3x - 9y - 12 is given in the general form of the equation of a line, Ax + By + C = 0, where A = -3, B = -9, and C = -12.

To find the equation of the line that passes through the point (2, -8) and is perpendicular to the line-3x - 9y - 12, we need to find the slope of the perpendicular line. The slope of a line perpendicular to another line is the negative reciprocal of the slope of the original line.

The slope of the line-3x - 9y - 12 can be found using the slope-intercept form, y = mx + b, where m is the slope and b is the y-intercept. Rearranging the general form equation:

-3x - 9y - 12 = 0

9y = 3x + 12

y = (3/9)x + 4

The slope of the line is m = 3/9. To find the slope of the perpendicular line, we find the negative reciprocal:

m_perpendicular = -1 / (3/9) = -9 / 3

We have the slope of the perpendicular line, now we need to find its equation. To do this, we use the point-slope form of the equation of a line:

y - y1 = m(x - x1)

where (x1, y1) is the point through which the line passes and m is the slope of the line. Plugging in the values for the point (2, -8) and the slope -9/3:

y - (-8) = -9/3 (x - 2)

y + 8 = -3x + 6

3x - y - 2 = 0

Leo's rent is due a few days before he expects to receive his paycheck from work. He takes out a payday loan for $200 to cover some of his rent and will pay it back when he gets his paycheck. The lender charges $15 for every $100 borrowed, which needs to be paid back in 2 weeks.

Answers

Leo needs to pay back a total of $215 in two weeks.

What is a numerical expression?

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

Given, Leo takes out a payday loan for $200 to cover some of his rent and will pay it back when he gets his paycheck and the lender charges $15 for every $100.

Now, (15/100)×100% = 15%.

Therefore, He has to pay back,

[(100 + 15)/100]×200.

= (115/100)×200.

= 1.15×200.

= $230.

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The function C approximates the number of calories recommended per day for
a dog, based on the weight, in pounds, of the dog.
The table gives values of C for selected values of p, where C(p) represents the
recommended number of calories per day for a dog that weighs p pounds.
Recommended Number of Calories for Dogs
p (pounds) C(p)
A2.F.BF.A.la
a.
C(x) = 18p +22
b. C(x) = 22p+ 18
?
11
22
33
Which of the equations shown most closely approximates C?
44
55
66
77
88
250
450
750
1000
1250
1500
1700
1880
C.
C(x) = 40(1.06)
d. C(x) = 48(1.07)"

Answers

The equation most closely approximates C is C(x) = 22p+ 18.

What is an expression?

Expression in maths is defined as the relation of numbers variables and functions by using mathematical signs like addition, subtraction, multiplication, and division.

Given that function, C calculates the number of calories recommended per day for a dog based on the dog's weight in pounds.

The equation can be written as:-

C(x) = 22p+ 18.

Here the dependent variable is C(x) and the dependent variable is p. So the value of C(x) will always depend upon the variable p.

Therefore, the correct equation will be C(x) = 22p+ 18.

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A tiling pattern is defined by the pattern rule equation n = 5+ 3p, where p is the
position number and n is the number of tiles. How many tiles would there be in
position 26?

Answers

Step-by-step explanation:

n=5+3p

when p=26,

n=5+3×26=83

What is the value of (2^(2014)+2^(2012))/(2^(2014)-2^(2012))? (A) -1 (B) 1 (C) (5)/(3) (D) 2013 (E) 2^(4024)

Answers

The value of the exponential equation is A = 5/3

What are the laws of exponents?

When you raise a quotient to a power you raise both the numerator and the denominator to the power. When you raise a number to a zero power you'll always get 1. Negative exponents are the reciprocals of the positive exponents.

The different Laws of exponents are:

mᵃ×mᵇ = mᵃ⁺ᵇ

mᵃ / mᵇ = mᵃ⁻ᵇ

( mᵃ )ᵇ = mᵃᵇ

mᵃ / nᵃ = ( m / n )ᵃ

m⁰ = 1

m⁻ᵃ = ( 1 / mᵃ )

Given data ,

Let the exponential equation be represented as A

Now , the value of A is

Substituting the values in the equation , we get

A = [ 2²⁰¹⁴ + 2²⁰¹² ] / [ 2²⁰¹⁴ - 2²⁰¹² ]   be equation (1)

On simplifying the equation , we get

Taking the common factor as 2²⁰¹² , we get

A = 2²⁰¹² [ 2² + 1 ] / 2²⁰¹² [ 2² - 1 ]

On further simplification , we get

A = ( 2² + 1 ) / ( 2² - 1 )

A = ( 4 + 1 ) / ( 4 - 1 )

A = 5/3

Therefore , the value of A is 5/3

Hence , the equation is A = 5/3

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Divide 3x³ - 2x² + 4x - 3 by x² + 3x + 3.

Answers

The quotient of the division is 3x - 11 with a remainder of 37x + 21

How to determine the quotient

From the question, we have the following parameters that can be used in our computation:

Divide 3x³ - 2x² + 4x - 3 by x² + 3x + 3.

Using the long division method of quotient, we have

x² + 3x + 3 | 3x³ - 2x² + 4x - 3

The division steps are as follows

                    3x - 11

x² + 3x + 3 | 3x³ - 2x² + 4x - 3

                    3x³ + 9x² + 9

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

                               -11x² + 4x - 12

                               -11x² - 33x - 33

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

                                           37x + 21

Hence, the quotient is 3x - 11

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14) Draw MN so that it is parallel to ST. If lauren doubles her quantity of shampoo consumed when her income rises by 100%, then lauren's income elasticity of demand for shampoo is oxygen and sulfur bonding patterns: build each of the indicated molecules below in the simulator and match them to the correct bonding pattern in respect to either oxygen or sulfur. remember if a molecule does not have a name when you build it is not a stable arrangement and you might have to reorder your atoms. for example: h2o - 2 single bonds as you complete the matching below think of the following: how do oxygen and sulfur atoms tend to bond in molecules? what patterns do you see? how many covalent bonds (total) do oxygen atoms or sulfur atoms tend to form? group of answer choices ocl2 [ choose ] no [ choose ] onh [ choose ] co2 (only describe one of the oxygen atoms) [ choose ] bs [ choose ] sis2 (only describe one of the sulfur atoms) [ choose ] WILL MARK BRAINLIEST. Two angles of a triangle measure 41 and 44.What is the measure of the third angle?OA) 75OB) 85OC) 95OD) 105 the most effective type of value proposition in business markets, generally, is known as Resonating Focus which focuses on a small number of benefits that motivate the customer and that are superior compared with the next-best alternative provided by a competitor. (true or false) How would the following changes in price affect total revenue? That is, would total revenue increase, decrease, or remain unchanged?Price falls and demand is inelastic: DecreasePrice rises and demand is elastic: DecreasePrice rises and supply is elastic: IncreasePrice rises and supply is inelastic: IncreasePrice rises and demand is inelastic: IncreasePrice falls and demand is elastic: IncreasePrice falls and demand is of unit elasticity: Remain unchanged TRUE/FALSE. To test the smell of a substance, partially fill your lungs with air and, while standing slightly back from the fumes, use your hand to waft the odors gently toward your nose. What is required for the maximum high tide to occur astronomy? a chemical equation is a statement using chemical that expresses both the identities and the relative of the reactants and products involved in a chemical or physical change. When would informal language be used appropriately?(1 point)Responsesan essay on a test.an essay on a test.an email to a friend.an email to a friend.a letter to a politician.a letter to a politician.an article for a local newspaper.an article for a local newspaper. What is definition of research designs in psychology? . find an interval that will contain 99% of the values of the coefficient of restitution with 95% confidence. PLEASE ANSWER TOADAY !!!!!!!!!!!!!!!!! Which of the following statements best describes the relationship of cost to communication in a design-bid-build process?Communication is timely and fast because all phases work together in a single team, which keeps costs from mistakes low.Communication is timely and fast because all phases work together in a single team, which keeps costs from mistakes low.The separation of phases into distinct parts with different teams means that communication doesnt flow as freely between phases, which can lead to misunderstandings and cost overruns from mistakes.The separation of phases into distinct parts with different teams means that communication doesnt flow as freely between phases, which can lead to misunderstandings and cost overruns from mistakes.The communication process in the design-bid-build is often confusing, which can lead to misunderstandings and cost overruns from mistakes.The communication process in the design-bid-build is often confusing, which can lead to misunderstandings and cost overruns from mistakes.Communication flows through well-defined channels, ensuring project leaders get the specific information they need to keep projects running efficiently without costly mistakes. if the sales ax rate is 7.6%, how much sales tax will you pay on a $330 item? An element crystallizes in a face-centered cubic lattice and has a density of 1. 456 g/cubic cm. The edge of its unit cell is 4. 52 x 10-8 cm. How many atoms are there in each unit cell?. Write a loop that reads positive integers from standard input, printing out those values that are even, each on a separate line. The loop terminates when it reads an integer that is not positive. Write a short Informative essay that explains to your fellows students, way to counteract cyberbullying a common form of social engineering is someone pretending to be an authorized user or administrator in an attempt to gain illicit access to protected data. a. true b. false fill in the blank. biological perspectives have determined that obsessive-compulsive disorder is characterized by low activity of the neurotransmitter___and abnormal functioning in two key regions of the brain.