Write the rational number as a decimal -21/16

Answers

Answer 1
Answer: - (21)/(16) = \boxed{\bf{1.3125}}

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Tara has two standard, six-sided dice. If she rolls them 36 times, how many times should she expect a sum less than 5 to show up? Justify your answer.

Answers

There are six sides on each die. For each possible score on Die 1, there are six possible scores on Die 2. So the number of possible combinations is 6*6 = 36. 
It follows that if the dice are thrown 36 times, you would expect each combination to come up once. 

We therefore simply need to know how many combinations add up to less than 5. (I've interpreted this as not including a total of 5 itself). 
These combinations are: 1 and 1, 2 and 1, 1 and 2, 2 and 2, 3 and 1, and 1 and 3 ---> six combinations out of 36. 

So you'd expect a sum less than 5 six times. 

What is 3 divided by 579

Answers

579 divided. By. 3 = 193

The answer to your question is 0.005981

Solve the formula for the specified variable
A=p+prt solve for r

Answers

Answer:

Step-by-step explanation:

The first step is to take p on both sides:

A - p = p + p*r*t - p

On the right hand side, cancel p and -p, since p-p=0. The equation will be:

A - p = p*r*t

Then, divide both sides of the equation by p*t:

(A-p)/(p*t) = (p*r*t)/(p*t)

On the right hand side, p*t can be cancelled:

(A-p)/(p*t) = r

Answer:

r=A-p     (the line is the bar so this is a-p over pt)

    pt

Step-by-step explanation:

P+Prt=A

     

Prt=A−P            isolate the term which contains  r

   

Prt=A−P

divide pt by each side

I need help with this please. Will post question below

Answers

Well, decreasing is the same as a negative slope which will always start at the bottom right and go towards the top right.

With this being said, A and C both fit this description, so your answers are A and C.

Hope this helps!



The air in a tire pump has a volume of 1.50 L at a temperature of 5.00ºC. If the temperature is increased to 30.0 ºC and the pressure remains constant, what is the new volume? Do not forget to convert ºC to K.

Answers

Answer:

The new volume is 1.63 L

Step-by-step explanation:

A tire pump has a volume of 1.5 L, while the temperature is 5 °C When the temperature changes to 30 °C, the volume will change as well.

The pressure remains constant.

Since the pressure is constant we can use the following formula:

V1/T1  = V2/T2

V1 = the initial volume = 1.5L

T1 = the initial temperature = 5 °C = 273.15 + 5 = 278.15 K

V2 = the final volume = TO BE DETERMINED

T2 = the final temperature = 30 °C = 273.15 + 30 = 303.15 K

1.5L/ 278.15 Kelvin = V2/303.15 K

V2 = (1.50L * 303.15 Kelvin) / 278.15 Kelvin = 1.63 L

When the temperature increased from 5°C to 30°C, the volume will change to 1.63 L

Indicate whether the exponent n in each equal to 2, 3 or 4

Answers

In the first equation n is 4, in the second n is 2 and the last is 3