Ask question

Ask question

All categories

GarryVolchara [31]

2 years ago

10

To make students more competitive in the work force and for graduate school, college professors are beginning to lower the stand

ard for student grades (i.e. what was once considered a b, is now considered an a). this is known as___.

1 answer:

Semmy [17]2 years ago

3 0

<span>Grade inflation is the correct term. </span>

You might be interested in

sineoko [7]

Answer:

Lesley will have to pay a higher interest rate.

Explanation:

just did this on edge

8 0

3 years ago

Read 2 more answers

Suppose you find a rock that contains 10 micrograms of radioactive potassium-40, which has a half-life of 1.25 billion years. By

attashe74 [19]

Answer:

The rock is 3.75 billion years ago.

Explanation:

Given that:

Half life = 1.25 billion years

1 billion years = 10⁹ years

So,

Half life = 1.25 × 10⁹ years

$t_{1/2}=\frac {ln\ 2}{k}$

Where, k is rate constant

So,

$k=\frac {ln\ 2}{t_{1/2}}$

$k=\frac {ln\ 2}{1.25\times 10^9}\ year^{-1}$

The rate constant, k = 5.5452 × 10⁻¹⁰ years⁻¹

Initial amount [A₀] = 80 micrograms

Final amount $[A_t]$ = 10 micrograms

Using integrated rate law for first order kinetics as:

$[A_t]=[A_0]e^{-kt}$

So,

$10=80\times e^{-5.5452\times 10^{-10}\times t}$

$80e^{-5.5452\times \:10^{-10}x}=10$

$\frac{80e^{-5.5452\times \:10^{-10}x}}{80}=\frac{10}{80}$

$\ln \left(e^{-5.5452\times \:10^{-10}x}\right)=\ln \left(\frac{1}{8}\right)$

$x=\frac{10^{10}\times \:3\ln \left(2\right)}{5.5452}=3.75\times 10^9$

So,

<u>The rock is 3.75 billion years ago.</u>

8 0

2 years ago

Which of the following shows the correct steps of the Juvenile Justice process from beginning to end in Georgia?

Komok [63]

A because i found it on quizlet. The quizlet is made by anaghaanil

3 0

3 years ago

How did Prince Shotoku rule Japan

Misha Larkins [42]

Prince Shotoku a member of the imperial clan, exercised political leadership from the end of the sixth century to the beginning of the seventh century. After Empress Suiko ascended to the throne in 593 as Japan's first female monarch, Shotoku took over the reins of political power as her regent. Hope this helps! :)

8 0

3 years ago

Which on is an example of a conceptual model in science

Andreas93 [3]

Answer: d

Explanation:

5 0

2 years ago