3 years ago

Please help quickly!

Mathematics

1 answer:

Stells [14]3 years ago

7 0

AB is reflected across the line Y=x

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Which of the following statements is TRUE about the relationship between the numerical values?

Gwar [14]

Answer:

D is the answer

Step-by-step explanation:

-15 Is the same as 15 its just negative but they have the same distance.

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3 years ago

Which do I click for the answer?

beks73 [17]

You Should click :

B) The row categories are "Wears Glasses" and "Do Not Wear Glasses"

C) Two teachers do not wear glasses

E) Total of 6 teachers were polled

<u>Explanation:</u>

In a class there are 129 students, among that 32 wear glasses, 97 don't wear glasses.
There are 6 teachers in those 4 wear glasses and 2 do not wear glasses.
Totally 135 present. In those 36 wear and 99 don't wear glasses.

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3 years ago

Iodine-125 has a daily decay rate of about 1%. How many milligrams of a 500 mg sample will remain after 300 days? Round the answ

Amanda [17]

So.. in this case, the starting amount is the 500mg sample... and the rate of decay, negative rate, is 1%, and at the time, the elapsed days is 0, to t = 0, P = 400

$\bf \qquad \textit{Amount for Exponential change}\\\\
A=P(1\pm r)^t\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{starting amount}\to &500\\
r=rate\to 1\%\to \frac{1}{100}\to &0.01\\
t=\textit{elapsed period}\to &300\\
\end{cases}
\\\\\\
A=500(1-0.01)^{300}$

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2 years ago

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The final grade in a biology course is determined by a score from 0 to 100, which has three components; a laboratory component o

vovangra [49]

Answer:

75*25%+(38+40)*50%+85*25%=59.5

Step-by-step explanation:

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2 years ago

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