6. how many grams of barium chloride are produced when 1.25 x 1023 molecules of hcl
reacts with barium according to the following equation?
word equation:

The sample tensile strength of fiber specimens will be greater than 75.75 psi in 43.25 percent of cases.

Z-score: Z-score indicates how much a given value differs from the standard deviation. The Z-score, or standard score, is the number of standard deviations a given data point lies above or below mean. Standard deviation is essentially a reflection of the amount of variability within a given data set.

given that a synthetic fiber used in manufacturing carpet has a tensile strength that is normally distributed with a mean 75.5 psi and standard deviation 3.5 psi

z = (raw score - mean) / (sample standard deviation - standard deviation)

n = 6; mean=75.5 psi; standard deviation=3.5 psi.

For (greater than) > 75.75,

z = (75.75 - 75.5) / (3.5 ÷√6) = 0.17

P(z > 0.17) = 1 - P(z < 0.17) = 1 - 0.5675 = 43.25%

The sample tensile strength of fiber specimens will be greater than 75.75 psi in 43.25 percent of cases.

To learn more about z-score visit:

brainly.com/question/15016913

#SPJ4

Answer:

they are congruent by SSS

Step-by-step explanation:

Answer:

B SSS

Step-by-step explanation:

The problem gives us lines to show which are congruent to each other. So we can see there are two sides equal to each other. For it to be SSS we need to know a third side is congruent and we can tell that we have a third congruent side because they share a side where the line cuts in the middle.

Hope This Helps :)

The estimation of 0.000007328 is \(7\times10^{-6\).

Estimation is he ability to guess the amount of anything without actual measurement.

The number (n) is given as:

\(\text{n}=0.000007328\)

Multiply by 1

\(\text{n}=0.000007328\times1\)

The number is to be rounded to the nearest millionth.

So, we substitute \(\frac{1000000}{1000000}\) for 1

\(\text{n}=0.000007328\times1\)

\(\text{n}=0.000007328\times\dfrac{1000000}{1000000}\)

This becomes

\(\text{n}=7.328\times\dfrac{1}{1000000}\)

Express the fraction as a power of 10

\(\text{n}=7.328\times10^{-6\)

Approximate to a single digit

\(\rightarrow\bold{n=7\times10^{-6}}\)

Therefore, the estimation of 0.000007328 is \(7\times10^{-6}\).

To know more about estimation, visit:

https://brainly.com/question/30200241

Answer:

option 3

Step-by-step explanation:

The probability of scanning the items in order of price, given a random order, depends on the number of orderings. The probability that the items are scanned in order of price is 1/n!.

To determine the probability of scanning the items in order of price, we need to consider the number of possible orderings that satisfy the condition and divide it by the total number of possible orderings.

Let's assume there are 'n' items with distinct prices. If the items are scanned in order of price, it means that the lowest-priced item must be scanned first, followed by the second lowest-priced item, and so on.

The total number of possible orderings of 'n' items is given by n!. However, since we want the items to be scanned in a specific order, only one ordering satisfies the condition. Therefore, the number of possible orderings that satisfy the condition is 1.

Thus, the probability of scanning the items in order of price is 1/n!.

To know more about probability visit -

brainly.com/question/31182920

#SPJ11

sorry for the stupid answer my b

Answer:

X=-50

Step-by-step explanation:

4(x-9)-2x=3x+14

4x-36-2x=3x+14

2x-36=3x+14

-x-36=14

-x=50

-x divided by 50 makes the x postive & the 50 negative

Step-by-step explanation:

Combing like terms means that you combine the terms that are alike. So, if you have integers you would combine the integers. If you had a variable like x, you would combine everything with x. For instance, 2x+4+3+7x, to combine like terms add 4+3 and 2x+7x.

the probability P(X<-2), we use the cumulative distribution function F(x) = 0 for x < -2. We plug in -2 for x in the function to get F(-2) = 0.

a. P(X<1.8) = .25(1.8) + .5 = .95

b. P(X>-1.5) = .25(-1.5) + .5 = .375

c. P(X<-2) = 0

d. P(-1.5<X<2) = .25(2) + .5 - (.25(-1.5) + .5) = .875

a. For the probability P(X<1.8), we use the cumulative distribution function F(x) = 0.25x + 0.5 for -2 <= x < 2. We plug in 1.8 for x in the function to get F(1.8) = 0.25(1.8) + 0.5 = 0.95. Therefore, P(X<1.8) = 0.95.

b. For the probability P(X>-1.5), we use the cumulative distribution function F(x) = 0.25x + 0.5 for -2 <= x < 2. We plug in -1.5 for x in the function to get F(-1.5) = 0.25(-1.5) + 0.5 = 0.375. Therefore, P(X>-1.5) = 0.375.

c. For the probability P(X<-2), we use the cumulative distribution function F(x) = 0 for x < -2. We plug in -2 for x in the function to get F(-2) = 0. Therefore, P(X<-2) = 0.

d. For the probability P(-1.5<X<2), we use the cumulative distribution function F(x) = 0.25x + 0.5 for -2 <= x < 2. We plug in -1.5 and 2 for x in the function to get F(-1.5) = 0.25(-1.5) + 0.5 = 0.375 and F(2) = 0.25(2) + 0.5 = 0.95. Therefore, P(-1.5<X<2) = 0.95 - 0.375 = 0.875.

Learn more about probability here

https://brainly.com/question/11234923

#SPJ4

The GTIN-13 code that was typed incorrectly is C. 9300617013199.

The GTIN-13 code system, also known as EAN-13 or UPC-13, is a globally recognized barcode standard used to identify products. Each GTIN-13 code consists of 13 digits, with the last digit acting as a check digit to ensure the accuracy of the code. The check digit is calculated based on a specific algorithm using the preceding 12 digits.

To determine which code was typed incorrectly, we need to calculate the check digit for each GTIN-13 code provided and compare it to the actual check digit. If the calculated check digit differs from the provided check digit, it means the code was typed incorrectly.

Let's go through each option:

A. 9400550619775

The last digit, 5, is the check digit. To calculate the check digit, we ignore it for now and perform the necessary calculations on the remaining 12 digits. After calculating the check digit based on the algorithm, we find that the correct check digit should be 7. Since the provided check digit is 5, option A is correct.

B. 9400559001014

Similarly, the check digit is 4. Performing the calculations, we find that the correct check digit should be 1. Since the provided check digit is 4, option B is correct.

C. 9300617013199

Again, the check digit is 9. After performing the calculations, we determine that the correct check digit should be 1. Since the provided check digit is 9, option C is the one that was typed incorrectly.

Therefore, the correct answer is: C. 9300617013199.

Learn more about Code

brainly.com/question/497311

#SPJ11

A triangle is a shape used to represent the components of total health. True

There are 24 ,5-digit palindromes with different neighboring .

A probability is a numerical representation of the likelihood or chance that a specific event will take place. Both proportions ranging from 0 to 1 and percentages ranging from 0% to 100% can be used to describe probabilities.

No, it is always between 0 t0 1.

Such a palindromic number should be  abcba  

2a+2b+c=14

Thus  c has to be even and we need

a+b=14−c/2 and we can choose for  a any value from  1 to  (14−c)/2

Thus the number of such palindromic numbers is

7+6+5+4+3=25

starting from  c=0 up to  c=8

To learn more about probabilities visit the link:

https://brainly.com/question/24756209

#SPJ4

Answer:

A.) y = 3/4x + 1

Step-by-step explanation:

First let's find the slope using the slope formula, (y₂-y₁)/(x₂-x₁). The two points given are (0,1)₁ and (4,4)₂. We have to substitute those values.

y₂ = 4, y₁ = 1, x₂ = 4, x₁ = 0 --> (4 - 1)/(4 - 0) = 3/4

The slope is 3/4.

Now, we have to find the y-intercept, which is where the line meets the y-axis. It touches the y-axis at (0,1). The y-intercept is 1.

Finally, we build our equation in slope-intercept form.

y = mx + b

y = 3/4x + 1

The amount  that Athena will be charged for interest is $22.19

What is the meaning of APR of 16.99%?

The APR means an annual percentage rate, which means that the 16.99% is annual interest rate compounded monthly, hence, it needs to be divided by 12 in order to determine the equivalent monthly interest rate.

monthly interest rate=16.99%/12

monthly interest rate=0.0141583333333333

The monthly interest charged on the balance of $1,567.32 is computed thus:

monthly interest charged=$1,567.32*0.0141583333333333

monthly interest charged=$22.19

Find out more about credit card payment on::brainly.com/question/28105962

#SPJ1

Answer:

4

Step-by-step explanation:

-3/(-1)-(-1)

simplify this first

-3/(-1) + 1

Order of Operations : Division first

-3/-1 = 3 since negative ÷ negative = positive

3+1

=4

Hope this helps :)

The displacement (in centimeters) of a particle s moving back and forth along a straight line is given by the equation \(s=5 sin( xt ) +4 cos( πt )\),

where t is measured in seconds. Therefore, the instantaneous velocity of the particle when t = 1 is approximately 2.35x cm/s.

To find the average velocity during each time period follow the steps given below:Given equation of displacement of the particle,

\(s(t) = 5sin(xt) + 4cos(πt)\)

\(vavg = [s(2) - s(1)]/(2 - 1)\)

= s(2) - s(1)

= \([5sin(2x) + 4cos(πx)] - [5sin(x) + 4cos(π)]\)

= \(5sin(2) - 5sin(1) + 4(cos(π) - cos(π))\)

=\(5(sin(2) - sin(1)) cm/s≈ 0.61 cm/s\)

(ii) The average velocity during time period [1,1.1] is given by;

\(vavg = [s(1.1) - s(1)]/(1.1 - 1)\)

= s(1.1) - s(1)

= \([5sin(1.1x) + 4cos(π1.1)] - [5sin(x) + 4cos(π)]\)

= \(5sin(1.1) - 5sin(1) + 4(cos(π1.1) - cos(π))\)

= 5(sin(1.1) - sin(1)) cm/s≈ 0.44 cm/s

(iv) The average velocity during time period [1,1.001] is given by;

vavg = [s(1.001) - s(1)]/(1.001 - 1)

= s(1.001) - s(1)

= \([5sin(1.001x) + 4cos(π1.001)] - [5sin(x) + 4cos(π)]\)

= \(5sin(1.001) - 5sin(1) + 4(cos(π1.001) - cos(π))\)

= 5(sin(1.001) - sin(1)) cm/s≈ 0.0057 cm/s

(b) To estimate the instantaneous velocity of the particle when t = 1, we need to calculate the derivative of the displacement function s(t) with respect to time t.

The derivative of s(t) w.r.t t is given as follows;

s'(t) = 5xcos(xt) - 4πsin(πt)

At t = 1, the instantaneous velocity of the particle is given by;

\(s'(1) = 5xcos(x) - 4πsin(π)≈ 2.35x cm/s\)

Therefore, the instantaneous velocity of the particle when t = 1 is approximately 2.35x cm/s.

To know more about derivative visit:

https://brainly.com/question/25324584

#SPJ11

The probability that he or she actually used steroids is 0.779.

The test is accurate 95% of the time when an athlete has taken steroids. It is 97% accurate when an athlete hasn't taken steroids. Suppose that the drug test will be used in a population of athletes in which 10% have actually taken steroids. Let's choose an athlete at random and administer the drug test.

Based on prior knowledge of conditions that might be related to the event, Bayes' theorem, which is named after Thomas Bayes and is used in probability theory and statistics, describes the probability of an event.

Using Baye's theorem:

P(steroids | positive) = P(steroids)*P(positive|steroids) / P(positive) = (0.10*0.95)/0.122 = 0.779

If the selected athlete passes the test, the probability that they used steroids: 0.779

Know more about  Baye's theorem here: https://brainly.com/question/28096770

#SPJ4

(complete question)

A company has developed a drug test to detect steroid use by athletes. The test is accurate 95% of the time when an athlete has taken steroids. It is 97% accurate when an athlete hasn’t taken steroids. Suppose that the drug test will be used in a population of athletes in which 10% have taken steroids. Let’s choose an athlete at random and administer the drug test.

Suppose that the chosen athlete tests positive. What’s the probability that he or she used steroids?

\( \huge \rm{Answer:}\)

#1.

BD = CE (given)

∠BDC = ∠ CEB (each 90° as BD and CE are altitudes)

BC = BC (common)

\( \\ \)

#2.

Yes, ∆CBD ≅ ∆BCE

\( \\ \)

#3.

Yes, ∠DCB = ∠EBC by [C.P.C.T.]

\(_______________________________________________\)

\({ \boxed{\underline{ \tt{March \: 15, 2022 \: || \: 2:51 \: PM}}}}\)

Answer:

#1.

BD = CE (given)

∠BDC = ∠ CEB (each 90° as BD and CE are altitudes)

BC = BC (common)

#2.

Yes, ∆CBD ≅ ∆BCE

(by RHS congruence)

#3.

Yes, ∠DCB = ∠EBC by [C.P.C.T.]

The ratios involved in the ROI formula are the net profit and the investment cost.

The ROI (Return on Investment) formula includes the following ratios:

Net Profit: The net profit represents the profit gained from an investment after deducting expenses, costs, and taxes.

Investment Cost: The investment cost refers to the total amount of money invested in a project, including initial capital, expenses, and any additional costs incurred.

The ROI formula is calculated by dividing the net profit by the investment cost and expressing it as a percentage.

ROI = (Net Profit / Investment Cost) * 100%

Therefore, the ratios involved in the ROI formula are the net profit and the investment cost.

for such more question on  net profit

https://brainly.com/question/4177260

#SPJ8

Most elements exist as components of compounds rather than in a free state because of their tendency to form chemical bonds with other elements.

Elements in their free state have a higher energy state and are typically more reactive. By forming compounds, elements can achieve a more stable configuration and lower their energy level.

Compounds are formed when elements chemically combine with each other through sharing, gaining, or losing electrons. This process allows the elements to achieve a full outer electron shell, which is the most stable electron configuration. This stability is achieved by following the octet rule, which states that elements tend to gain, lose, or share electrons to have eight electrons in their outermost shell (except for hydrogen and helium, which require only two electrons).

Additionally, compounds often have different properties and characteristics compared to the individual elements. This is because the chemical bonds between the elements in a compound create new structures and arrangements of atoms, resulting in unique properties. These properties make compounds valuable for various purposes, such as in medicine, technology, and industry.

To know more about Elements visit :

brainly.com/question/30858299

#SPJ11

Answer:

Smallest integer=14

Step-by-step explanation:

(x+x+2+x+4+x+6)/4=17

(4x+12)/4=17

4x+12=68

4x=68-12

4x=56

x=56/4

x=14

numbers are: 14, 16, 18, 20

Given:

The ratio of the number of text messages sent by Tiffany to the number of text messages sent by her brother is 3 to 4.

Tiffany sent 12 text messages.

Let the number of messages of her brother = x

So,

solve for x:

So, x = ( 4 * 12 )/3 = 16

So, the answer will be the number of messages of her brother = 16

The cost of each store in two months is: Store A is 4281, Store B is 5485, Store C is 3153, and Store D is 6413.

To calculate the total number of pets delivered over the period of 2 months to each store, we need to add the corresponding elements of matrix K and matrix L. The result will be a new matrix representing the total number of pets delivered to each store.

So, we have: Matrix K:

| 8 4 3 |

| 2 1 3 |

| 1 3 2 |

| 7 2 6 |

Matrix L:

| 1 3 2 |

| 8 4 9 |

| 2 6 3 |

| 4 9 2 |

Total pets delivered to each store:

| 9 7 5 |

| 10 5 12 |

| 3 9 5 |

| 11 11 8 |

To calculate the cost of each store in two months, we need to multiply the total number of pets delivered to each store by the price of each type of drink, as given by the matrix:

| 225 195 212 |

So, the cost of each store in two months is:

Store A: (9 × 225) + (7 × 195) + (5 × 212) = 4281

Store B: (10 × 225) + (5 × 195) + (12 × 212) = 5485

Store C: (3 × 225) + (9 × 195) + (5 × 212) = 3153

Store D: (11 × 225) + (11 × 195) + (8 × 212) = 6413

To know more about cost here

https://brainly.com/question/24228515

#SPJ4

Answer:

step 2

and then also in step 3 compensating the error in step 2

Step-by-step explanation:

I think I just answered this for another post.

sin(a - b) = sin(a)cos(b) - cos(a)sin(b)

so, step 1 is correct :

sin(A - 3pi/2) = sin(A)cos(3pi/2) - cos(A)sin(3pi/2)

but step 2 suddenly and incorrectly switched that central "-" to a "+".

yes, sin(3pi/2) = -1, but that is still an explicit factor in step 2. so it was not used to flip the central operation from subtraction to addition, and therefore this change was a mistake.

then, in step 3, another error was made by just ignoring the "-" sign of "-1" and still keeping the central "+" operation. this error compensated for the error in step 2 bringing us back by pure chance to the right result.

One example of a phenomenon that is commonly modeled as normally distributed is the heights of adult individuals in a population. The distribution of heights in a given population tends to follow a normal or Gaussian distribution.

The normal distribution is often observed in naturally occurring phenomena due to the central limit theorem. This theorem states that when independent random variables are added, their sum tends to be approximately normally distributed, regardless of the distribution of the original variables. Many biological characteristics, including height, tend to be influenced by multiple genetic and environmental factors that can be considered as a combination of various independent variables. Consequently, when these factors combine, the resulting distribution of heights approximates a normal distribution.

Estimating the mean and standard deviation of heights:

To estimate the mean and standard deviation of heights in a population, a representative sample of individuals can be measured. This sample should ideally be randomly selected to ensure it is representative of the entire population. The mean height of the sample would provide an estimate of the population mean, while the sample standard deviation would provide an estimate of the population standard deviation.

For example, if we measure the heights of 500 individuals in a population and calculate the sample mean as 170 cm and the sample standard deviation as 10 cm, these values can be considered estimates for the population mean and standard deviation, respectively. These estimates are based on the assumption that the sample is representative of the entire population.

It's important to note that the mean and standard deviation can vary among different populations or demographic groups, such as males and females or different age ranges. Thus, specific estimates for mean and standard deviation should be obtained based on the relevant population or subgroup of interest.

Learn more about Gaussian distribution here:

https://brainly.com/question/32399057

#SPJ11

Step-by-step explanation:

Given, x=3y and y=x+4

y=3y+4.... substituting x=3y

y-3y=4

-2y=4

y=-2

Then substitute -2 either in x=3y or y=x+4 equations

x=3(-2)

=-6

Answer:

Step-by-step explanation:

To find g[f(2)], we need to evaluate the composite function g[f(2)] by first finding f(2) and then substituting the result into g(x).

Let's start by finding f(2):

f(x) = 2x² - 3x

f(2) = 2(2)² - 3(2)

= 2(4) - 6

= 8 - 6

= 2

Now that we have the value of f(2) as 2, we can substitute it into g(x):

g(x) = 5x - 1

g[f(2)] = g(2)

= 5(2) - 1

= 10 - 1

= 9

Therefore, g[f(2)] is equal to 9.

Learn more about composite function here: brainly.com/question/30660139

#SPJ11

To find the values of z that make the product with the complex number 5-6i a real number, we need to consider the imaginary part of the product.

The product of z and 5-6i can be written as:

z * (5 - 6i)

Expanding this expression, we get:

5z - 6zi

For the product to be a real number, the imaginary part (-6zi) must be equal to zero. This means that the coefficient of the imaginary unit i, which is -6z, must be zero.

Setting -6z = 0, we find:

z = 0

So, one possible nonzero value of z is 0.

However, since we are looking for nonzero values of z, we need to find another value that satisfies the condition.

Let's consider the equation for the imaginary part:

-6z = 0

Dividing both sides of the equation by -6, we have:

z = 0/(-6)

z = 0

Again, we find z = 0, which is not a nonzero value.

Therefore, there are no other nonzero values of z that make the product with the complex number 5-6i a real number. The only value that satisfies the condition is z = 0.

Step-by-step explanation:

Different Types of Indexes in SQL Server