Evacuation and emergency procedures should be displayed in the classroom lab/office. * 4 points True False

Answer:

gcyj gc yj g

Step-by-step explanation:

cgyj jc y gc jyjgcjc gj gcjg jg jgjy g yjcgj

Answer:

12.4 pieces of ribbon

Step-by-step explanation:

When looking in the question, we can see the term "cut into equal pieces." This can insure to us that we need to divide two numbers. Since we originally have 15.5 inches long string, and we want to cut it into strings that are 1.25 inches long. We divide :

15.5 / 1.25

==> 12.4

Answer:

A. 0.78 and 1.255.

B.  0.095

C. -0.475

Step-by-step explanation:

The given regression line is

y=-0.17+0.095x

A.

The true average flow rate for a pressure drop of 10 inch can be computed by putting x=10 in above equation.

y=-0.17+0.095*10

y=-0.17+0.95

y=0.78

The true average flow rate for a pressure drop of 10 inch is 0.78.

The true average flow rate for a pressure drop of 15 inch can be computed by putting x=15 in above equation.

y=-0.17+0.095*15

y=-0.17+1.425

y=1.255

The true average flow rate for a pressure drop of 15 inch is 1.255.

B.

The slope represents average change in y due to unit change in x.

So, the true average change in flow rate associated with a 1 inch increase in pressure drop is 0.095(1)= 0.095.

C.

When pressure drops decreases by 5 in. then the average change in flow rate is 0.095(-5)=-0.475.

The flow rate in the device is an illustration of average rates.

The function is given as:

[tex]\mathbf{y = -0.17 + 0.095x}[/tex]

(a) The true average flow rate when pressure drops 10 and 15 in

When x = 10, we have:

[tex]\mathbf{y = -0.17 + 0.095 \times 10}[/tex]

[tex]\mathbf{y = 0.78}[/tex]

When x = 15, we have:

[tex]\mathbf{y = -0.17 + 0.095 \times 15}[/tex]

[tex]\mathbf{y = 1.255}[/tex]

Hence, the true average flow rates when pressure drops 10 and 15 in are 0.78 and 1.255 respectively

(b) The true average flow rate when pressure increases by 1 in

This simply represents the slope of the function.

The function is given as:

[tex]\mathbf{y = -0.17 + 0.095x}[/tex]

A linear regression equation is represented as:

[tex]\mathbf{y = b + mx}[/tex]

Where m represents the slope

By comparison:

[tex]\mathbf{m = 0.095}[/tex]

Hence, the true average flow rates associated to a 1 in pressure increment is 0.095

(c) The average change in flow rate when pressure drops decreases by 5 in

The domain of the function is given as:

[tex]\mathbf{x = 5\ to\ 20}[/tex]

A decrement of -5 in means: x = -5

This is out of the domain of the function

Hence, the average change at a decrement of 5 in cannot be calculated

Read more about average change at:

https://brainly.com/question/23483858

Answer:

Start at (0,2) and draw a line to (3,1)

Step-by-step explanation:

Since +2 is the y-intercept, we must start there.

Always remember the saying "rise over run". Since -1 is the "rise", we must go down one, "3" is the run, so we must move over to the right 3 times.

Answer:

Neither, they increase by the exact same amount.

Step-by-step explanation:

With the first data set you have a mean of 50 and a median value of 50 as well because to find a median of an even set of numbers you take the two middle values and average them together, in this case being 35 and 65 averaging out to 50. Adding 155 to this data set increases the mean to 65 and the median value to 65 as well, making this a trick question because the increase is the exact same.

Answer:

A) I) 49 teams

II)63 teams

B) 28 teams

Step-by-step explanation:

A) a team of 5 boys and 6 Girls

=7C5+ 8C6

= 21+28

= 49 teams

a team of 6 boys and 5 girls

= 7C6 + 8C5

= 7+56

= 63 teams

B) one girl is kept constant already and a guy has injury

Girls remaining to choose from 7

Boys remaining to choose from 6

= 1 +7C5 + 6C5

= 1+21+6

= 28 teams

Answer:

The P-value is 0.0234.

Step-by-step explanation:

We are given that a statistics practitioner calculated the mean and the standard deviation from a sample of 400. They are x = 98 and s = 20.

Let = population mean.

So, Null Hypothesis, : = 100 {means that the population mean is equal to 100}

Alternate Hypothesis, : > 100 {means that the population mean is more than 100}

The test statistics that will be used here is One-sample t-test statistics because we're yet to know about the population standard deviation;

T.S. = ~

where, = sample mean = 98

s = sample standard deviation = 20

n = sample size = 400

So, the test statistics = ~

= -2

The value of t-test statistics is -2.

Now, the P-value of the test statistics is given by;

P( < -2) = 0.0234 {using the t-table}

Answer:

y = (1/2n) + (9/4)

Step-by-step explanation:

4y - 2n = 9

add 2n to both sides

4y = 9 + 2n

divide both sides by 4

y = (9/4) + (2/4n)

simplify

y = (9/4) + (1/2n)

put in standard form

y = (1/2n) + (9/4)

Answer:

y=9+2n/4

Step-by-step explanation:

4y-2n=9

   +2n

4y=9+2n

÷4     ÷4

y=9+2n/4

Answer:

Step-by-step explanation:

9k + 3 > 6k - 18

To solve the inequality shown first group like terms.

That's send the constants to the right side of the inequality and those with variables to the left side.

We have

9k - 6k > - 18 - 3

Simplify

3k > - 21

Divide both sides by 3

We have the final answer as

Hope this helps you

Answer:

1

Step-by-step explanation:

-1 - (-z)

-1 - (-2)

-1 + 2

1

Answer:

-3

Step-by-step explanation:

Answer:  4.

Step-by-step explanation:

As you can see from the table in you input 0 into the function your output will be 4.

Answer:

There is no difference.

Step-by-step explanation:

When it comes to significant figures, they matter.

However, if you just add zeros, they essentially just become placeholders. 3 already has 0 for decimals, so it is equal to 3.0 and 3.00.

Answer:

The question is not complete.

I believe this is the correct complete question:

The following sample of six measurements was randomly selected from a normally distributed population: 1, 3, -1, 5, 1, 2.

a. Test the null hypothesis that the mean of the population is 3 against the alternative hypothesis,

μ<3  Use  α=.05

b. Test the null hypothesis that the mean of the population is 3 against the alternative hypothesis,

μ≠3  Use  α=.05

c. Find the observed significance level for each test.

Step-by-step explanation:

We will first find the standard deviation (S.D) of the six measurements.

To find the S.D, we calculate the mean and variance

Mean = ∈n/n where ∈n = sum of set of numbers n

Mean = [1+3+(-1)+5+1+2] / 6 where n = 6

Mean = 11/6 = 1.8

Variance = Sum of squared deviation from mean / n-1

Variance = [(1-1.8)² + (3-1.8)² + (-1-1.8)² + (5-1.8)² + (1-1.8)² + (2-1.8)²] / 6-1

Variance = [0.64 + 1.44 + 7.84 + 10.24 + 0.64 + 0.04] / 5 = 20.84/5 = 4.168

Standard Deviation S.D = √Variance = √4.168 = 2.041

(a) [tex]H_{o}[/tex] : μ=3,  [tex]H_{a}[/tex] : μ<3

Using  α=0.05

test stat =  {mean - μ[tex]_{o}[/tex]] / S.D /[tex]\sqrt{n}[/tex] = [1.8 - 3] / [2.041/ √6

test stat = -1.2 / 0.833 = -1.44

Critical Value from Student T distribution is t[tex]_{a}[/tex] = 2.015

Therefore, the rejection value contains values < -2.015

-1.400 > -2.015. It Fails to reject [tex]H_{o}[/tex]

(b) [tex]H_{o}[/tex] : μ = 3,  [tex]H_{a}[/tex] : μ ≠ 3

Using  α=0.05

test stat =  {mean - μ[tex]_{o}[/tex]] / S.D /[tex]\sqrt{n}[/tex] = [1.8 - 3] / [2.041/ √6

test stat = -1.2 / 0.833 = -1.44

Critical Value from Student T distribution is t[tex]_{a}[/tex] = 2.571

Therefore, the rejection value contains values < -2.571 and larger value to 2.571

2.571 > -1.400 > -2.571. It Fails to reject [tex]H_{o}[/tex]

(c) Significance Value of (a) is P-value > 0.100

Significance Value of (b) is P-value > (2 x 0.100 = 0.200)

The domain of the function is [tex]\mathbb{R}[/tex] or in set notation [tex](-\infty, \infty)[/tex].

The range of the function is [tex][0, -\infty)[/tex].

Hope this helps.

Answer:

Step-by-step explanation:

Simplify.

10 x 4000

40000

Unit form.

forty-thousand = four thousands

I'm sorry if I misunderstood.

Please add Brainliest if you'd like, not that it matters.

Multiplication is the process of multiplying. The value of the expression 10 × 4,000 is 40,000.

Multiplication is the process of multiplying, therefore, adding a number to itself for the number of times stated. For example, 3 × 4 means 3 is added to itself 4 times, and vice versa for the other number.

In the given expression 10×4000, the symbol of '×' represents that the two digits should be multiplied. Therefore, the value of the multiplication of 10 and 4,000 is,

10 × 4,000 = 40,000

Hence, the value of the expression 10 × 4,000 is 40,000.

Learn more about Multiplication here:

https://brainly.com/question/14059007

#SPJ2

Answer:

12+x=24

Step-by-step explanation:

To do this you would just plug in 12 for x to each equation and when you do that the only one that would be right would be 12+x=24

Hi there! Hopefully this helps!

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

x + 12 = 30

x = 18.

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

15 + x = 15.

x = 0

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

x + 5 = 18

x = 13

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

Answer:

169.65

Step-by-step explanation:

Answer:

There is sufficient evidence to conclude that the new algorithm has a lower mean completion time than the current algorithm

Step-by-step explanation:

From the question we are told that

    The  sample size for each algorithm is [tex]n_1 = n_2 = n = 61[/tex]

     The sample mean  for new algorithm is  [tex]\= x_1 = 14.06 \ hr[/tex]

     The  standard deviation for new algorithm is  [tex]\sigma _1 = 3.004 \ hr[/tex]

     The  sample  mean for  the current algorithm is  [tex]\= x_2 = 16.43 \ hr[/tex]

     The standard deviation for current algorithm is  [tex]\sigma _2 = 4.568[/tex]

     The  level of significance is [tex]\alpha = 0.05[/tex]

The  null hypothesis is  [tex]H_o : \mu_1 = \mu _2[/tex]

The  alternative  hypothesis is [tex]H_a : \mu_1 < \mu_2[/tex]

Here  [tex]\mu _1 \ and \ \mu_2[/tex] are population mean for  new and current algorithm

Generally the test statistics is mathematically represented as

       [tex]Z = \frac{ \= x _1 - \= x_2 }{ \sqrt{\frac{ \sigma_1 ^2 }{n_1} + \frac{\sigma^2_2 }{ n_2}} }[/tex]

=>    [tex]Z = \frac{ 14.06 - 16.43 }{ \sqrt{\frac{ 3.004^2 }{61} + \frac{4.568^2 }{ 61}} }[/tex]

=>    [tex]Z = -3.39[/tex]

Generally the p-value is mathematically represented as

     [tex]p-value = P(Z < -3.39 )[/tex]

From the  z-table  

             [tex]P(Z < -3.39 ) = 0.0003[/tex]

=>    [tex]p-value = P(Z < -3.39 ) = 0.0003[/tex]

From the calculated value  we see that  [tex]p-value < \alpha[/tex]  hence the null hypothesis is rejected

        Hence we can conclude that there is sufficient evidence to conclude that the new algorithm has a lower mean completion time than the current algorithm

Step-by-step explanation:

Following B. O. D. M. A. S rule :

= { [ 8 / 2] ^2 - 6} * (-2)

= { 4 ^ 2 - 6} * - 2

= 10 * - 2

= - 20

Answer:

Solution : - 20

Step-by-step explanation:

We have the following expression to simplify,

[tex]\left\{\left[\frac{\left(3+5\right)}{2}\right]^2-\left(3\cdot 2\right)\right\}\cdot \left(-2\right)[/tex]

Let's start by simplifying simple expressions, such as 3 + 5 = 8 and 3 * 2 = 6. Substituting we receive,

[tex]\left\{\left[\frac{\left(8\right)}{2}\right]^2-\left(6\right)\right\}\cdot \left(-2\right)[/tex]

8 / 2 = 4, and 4² = 16 -

[tex]\left\{16-\left(6\right)\right\}\cdot \left(-2\right)[/tex]

And of course 16 - 6 = 10, simplifying the expression to " - 2 [tex]*[/tex] 10 " leaving us with a solution of - 20.

Answer:

slope of F(X) = to the slope of G(X)

Step-by-step explanation:

your answer should be: letter C

No lies, I just did the exam and I've got it right, gook luck, guys.

please let me know if it worked, and also please don't forget to make brainly, give a rate, and add the heart ;) I will do the same on you.

The slope of a line f(x) is greater than the slope of a line g(x). Therefore, option A is the correct answer.

The coordinate points on equation of line g(x) are (0, 2), (5, 4) and (10, 6) and f(x) are (3, 1) and (0, -1).

The slope or gradient of a line is a number that describes both the direction and the steepness of the line. The slope can be determined using the formula, slope = (y2-y1)/(x2-x1).

Now, slope of a line g(x) is (4-2)/(5-0)

=2/5

Slope of a line f(x) is (-1-1)/(0-3)

=2/3

The slope of a line f(x) is greater than the slope of a line g(x). Therefore, option A is the correct answer.

To learn more about the slope of a line visit:

https://brainly.com/question/16180119.

#SPJ2

Answer:

75°

105°

Step-by-step explanation:

Two co-interor= 180°

5+7= 12

ratio12= 180°

{find the other ratios, 5 and 7)

12=180°

5×180÷12 = 75°

To find 7, just subtract 180-75= 105°

Answer:

x to the power of negative 3 multiplied by y to the power of negative 12, the whole over x to the power of 15 multiplied by y to the power of negative 15.

Step-by-step explanation:

Given is expression below to be simplified:

The step in simplifying is the power of the power, which is equal to product of powers: (xᵃ)ᵇ = xᵃᵇ. So, power of  -3 of the whole equals to:

This expression is same as the last option:

So, this is the correct one.

Answer:

other answer was correct

Step-by-step explanation:

Answer:

The answer would be x = 6 , − 6

Step-by-step explanation:

x 2 = 36

Take the square root of both sides of the equation to eliminate the exponent on the left side.

x = ± √ 36

The complete solution is the result of both the positive and negative portions of the solution.

Which give you the answer of x = 6 , − 6

Answer:

mAOC = 40

Step-by-step explanation:

This is because from 40 to 60 degrees its 20 degrees, and then from 60 to 80 degrees its 20 degrees so 20 +20= 40 degrees

Answer:

I need something to slove

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

Answer:

-180

Step-by-step explanation:

just simply put the values in place of variables and solve

36(3) - 8(6)^2

108 - 8(36)

108 - 288

-180

Answer:

-180

Step-by-step explanation:

Answer:

The answer is C. Property tax.

Step-by-step explanation:

An example of a typical cost that is not associated with renting include the following: C. property tax.

In Economics, there are different types of tax that are being levied on individuals or business organizations by the government, and these include the following:

Sales tax

Income tax

Property tax

here, we have,

Generally speaking, property taxes are typically determined with respect to the monetary value of a property in real estate. This ultimately implies that, property taxes are typically determined based on the monetary value that is associated with a property.

In conclusion, last month's rent, security deposit, and pet deposit are examples of cost that are associated with renting.

Read more on tax here:

brainly.com/question/25783927

#SPJ7