A chemist is performing an experiment by observing the effects when she combines two solutions. She monitors the temperature of the combined solution over the course of eight hours and records it in this table below.

The chemist can model the temperature with a polynomial function. During these eight hours, over what interval is the temperature decreasing?

A. From hour 0 to hour 8

B. From hour 5 to hour 8

C. From hour 0 to hour 5

D. From hour 2 to hour 6

Answer:

0

Step-by-step explanation:

(6-6)/(1-2)=0

Answer:

The slope is zero

Step-by-step explanation:

it is zero because if you graph the two points the line is horizontal meaning that only the x value goes up as the y value stays put meaning that the slope of this line is zero

Answer:

Negative 5 and 7 over 8

Step-by-step explanation:

Answer:

Negative 5 and StartFraction 7 over 8

Step-by-step explanation:

Answer:

I believe you divide it

Step-by-step explanation:

hope this helps u

Answer:

38.2

Step-by-step explanation:

50 1/2=50.5      1/2=.5

50.5 + -12.3 is the same as 50.5 - 12.3

50.5 + -12.3= 38.2

50.5 - 12.3 = 38.2

Answer:

-2*(6y-3x+9)

Step-by-step explanation:

Answer:

-6(-x+3+2y)

Step-by-step explanation:

Answer: A. Rosa is correct in using a division expression because the term ""per"" implies the quotient of the quantities before and after that word.

Step-by-step explanation:

The term ; Cost per pound can be interpreted mathematically to mean;

Cost / pound ; where per means division. In the context above ;

cost per pound = cost of 1 pound of an item ;

(Stated Cost of the item ÷ pound of the item at the stated cost)

For the question above ;

2/3 pounds of ground beef cost $4;

Cost per pound = cost of 1 pound of ground beef ;

= $4 ÷ (2/3)

= $6

Hence, 1 pound of ground beef cost $6

Answer:

so the answer is a. 1/25 hope this helps can my reward be brainlest???

Step-by-step explanation: What is the result of 5 divided by one-fifth?

5 fraction bars. Each bar is labeled 1 with 5 boxes labeled one-fifth underneath.

StartFraction 1 Over 25 EndFraction

One-fifth

1

25

the answer is 144 not sure what you're supposed to do with that. 144 rounded would just be 100.

716 - 572 = 144

Answer:

-6/4 is equivalent to that

Step-by-step explanation:

Answer:  x = 28

===================================================

Explanation:

The angles COE, EOF, and FOB combine to form angle COB

angle COB = (angleCOE)+(angleEOF)+(angleFOB)

angle COB = (3x)+(x)+(x+12)

angle COB = 5x+12

----------

Angles AOD and COB are vertical angles, so they are congruent

angle COB = angle AOD

5x+12 = 152

5x = 152-12

5x = 140

x = 140/5

x = 28

Answer:

b

Step-by-step explanation:

Answer:

It is in the simplest form and cannot be simplified.

Step-by-step explanation:

Answer:

5:2

Step-by-step explanation:

40/8 = 5      16/8 = 2

Answer:

The length of the segment is 5

Answer:

Angle A and H are Alternate exterior angles and they are congruent.

Answer:

i got none just me? i got 4

Step-by-step explanation:

Answer:

they are neither

Step-by-step explanation:

because if you connect the dots they are neither parallel or perpendicular

Answer:

Step-by-step explanation:

m∠4 + m∠16 = 180° [Consecutive exterior angles]

m∠16 = m∠14 [corresponding angles]

Therefore, m∠4 + m∠14 = 180°

m∠7 + m∠11 = 180° [Consecutive interior angles]

m∠11 = m∠9 [Corresponding angles]

Therefore, m∠7 + m∠9 = 180°

In both the cases sum of the given angles is 180°.

Therefore, measure of ∠4 and ∠14 are related in the same way as the measurement of ∠9 and ∠7.

Answer:

The value is  [tex]P(| \^ p -  p| < 0.05 ) = 0.9822 [/tex]

Step-by-step explanation:

From the question we are told that

    The population proportion is  [tex]p =  0.52[/tex]

     The sample size is  n  =  563      

Generally the population mean of the sampling distribution is mathematically  represented as

           [tex]\mu_{x} =  p =  0.52[/tex]

Generally the standard deviation of the sampling distribution is mathematically  evaluated as

       [tex]\sigma  =  \sqrt{\frac{ p(1- p)}{n} }[/tex]

=>      [tex]\sigma  =  \sqrt{\frac{ 0.52 (1- 0.52 )}{563} }[/tex]

=>      [tex]\sigma  =   0.02106 [/tex]

Generally the  probability that the proportion of persons with a college degree will differ from the population proportion by less than 5% is mathematically represented as

            [tex]P(| \^ p -  p| < 0.05 ) =  P( - (0.05 - 0.52 ) <  \^ p <  (0.05 + 0.52 ))[/tex]

  Here  [tex]\^ p[/tex] is the sample proportion  of persons with a college degree.

So

 [tex]P( - (0.05 - 0.52 ) <  \^ p <  (0.05 + 0.52 )) = P(\frac{[[0.05 -0.52]]- 0.52}{0.02106} < \frac{[\^p - p] - p}{\sigma }  < \frac{[[0.05 -0.52]] + 0.52}{0.02106} )[/tex]

Here  

    [tex]\frac{[\^p - p] - p}{\sigma }  = Z (The\ standardized \  value \  of\  (\^ p - p))[/tex]

=> [tex]P( - (0.05 - 0.52 ) <  \^ p <  (0.05 + 0.52 )) = P[\frac{-0.47 - 0.52}{0.02106 }  <  Z  < \frac{-0.47 + 0.52}{0.02106 }][/tex]

=> [tex]P( - (0.05 - 0.52 ) <  \^ p <  (0.05 + 0.52 )) = P[ -2.37 <  Z  < 2.37 ][/tex]

=>  [tex]P( - (0.05 - 0.52 ) <  \^ p <  (0.05 + 0.52 )) = P(Z <  2.37 ) - P(Z < -2.37 )[/tex]

From the z-table  the probability of  (Z <  2.37 ) and  (Z < -2.37 ) is

  [tex]P(Z <  2.37 ) = 0.9911[/tex]

and

  [tex]P(Z <  - 2.37 ) = 0.0089[/tex]

So

=>[tex]P( - (0.05 - 0.52 ) <  \^ p <  (0.05 + 0.52 )) =0.9911-0.0089[/tex]

=>[tex]P( - (0.05 - 0.52 ) <  \^ p <  (0.05 + 0.52 )) = 0.9822 [/tex]

=> [tex]P(| \^ p -  p| < 0.05 ) = 0.9822 [/tex]

Wrap

Step-by-step explanation:

xsamksa

Answer:

$23,275.817

Step-by-step explanation:

To get this answer, multiply 19,000 by 1.07.

$19,000 x 1.07 = 20,330 (one year later)

$20,330 x 1.07 = $21,753.10 (two years later)

$21,753.10 x 1.07= $23,275.817 (three years later)

The answer round to cents would be $23,275.82

Answer:

i love free points dont you

Answer:

i think it is first, but i'm not sure.

Step-by-step explanation:

the first one is the most logical (to me)

Answer:

the first graph

Step-by-step explanation:

Answer:

294N

Step-by-step explanation:

La presion que ejerce sobre el suelo seria la fuerza de la caja contra el suelo. Esto se calcula multiplicando el peso de la caja por el valor de la gravedad de nuestra tierra. En esta situacion no se necesitaria las dimensiones de la caja.

Fuerza = 30kg * 9.8[tex]m/s^{2}[/tex]

Fuerza = 294N

Fuerza tiene un simbolo de N que significa Newtons que serian calculados como kg * m/s^{2} ... entonces la caja ejerce una fuerza de 294N sobre el suelo.

Answer:

I believe it's 2 2/5

Step-by-step explanation:

1 /5 ÷  1 /12  = 1 / 5  ×  12 /1

=

1 × 12

---------

5 × 1  

=

12 /5  = 2 2 /5

Answer:

The goal in solving an equation is to get the variable by itself on one side of the equation and a number on the other side of the equation. To isolate the variable, we must reverse the operations acting on the variable.

Step-by-step explanation:

The objective or equation would be to acquire the variables independently. A further explanation is provided below.

Learn more about equations here:

https://brainly.com/question/20989555

Answer:

37

Step-by-step explanation:

just add the two numbers like they are not negative.

Answer:

O-O is this highschool stuff sorry couldnt help

Step-by-step explanation:

Question:

Choose an equivalent expression for 12^3 • 12^9 • 12^4 • 12^2

A. 12^4 B. 12^18 C. 12^35 D. 12^216

Answer:

[tex]12^{18}[/tex]

Step-by-step explanation:

Given

[tex]12^3 . 12^9 . 12^4 . 12^2[/tex]

Required

Determine the equivalent

Applying law of indices, we have:

[tex]12^{3 + 9 + 4 + 2}[/tex]

[tex]12^{18}[/tex]

Hence:

[tex]12^3 . 12^9 . 12^4 . 12^2 = 12^{18[/tex]

Answer:

80,341.99

Step-by-step explanation:

pay each Month $80 for 19 years , interest measured 3%