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Bas_tet [7]
3 years ago
6

what's the unit rate for $4.50,7.50,6.50,7.50,4.50,5.00,1.50,1.65,3.75,3.95!!!!!PLZ HURRY PROJECT DUE ON TUESDAY!!!!!

Mathematics
1 answer:
Alex_Xolod [135]3 years ago
8 0
Just add all the numbers together, the divide by the amount of numbers
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√2 times √800 anyone know?
jeka94

\sqrt{2}  \times  \sqrt{800}

\sqrt{2}  \times 20 \sqrt{2}

\sqrt{2}  \times  \sqrt{2}  =  \sqrt{4}  \:  = 2

20 \times 2 = 40

therefore \:  \:  \:  \sqrt{2}  \times  \sqrt{800} = 40
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3 years ago
What is the domain and range of h(t)=cot t
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7 0
3 years ago
A cup of coffee contains about 100 mg of caffeine. Caffeine is metabolized and leaves the body at a continuous rate of about 12%
Mamont248 [21]

Answer:

a. A = C_{0}(1-x)^t\\x: percentage\ of \ caffeine\ metabolized\\

b. \frac{dA}{dt}= -11.25 \frac{mg}{h}

Step-by-step explanation:

First, we need tot find a general expression for the amount of caffeine remaining in the body after certain time. As the problem states that every hour x percent of caffeine leaves the body, we must substract that percentage from the initial quantity of caffeine, by each hour passing. That expression would be:

A= C_{0}(1-x)^t\\t: time \ in \ hours\\x: percentage \ of \ caffeine\ metabolized\\

Then, to find the amount of caffeine metabolized per hour, we need to differentiate the previous equation. Following the differentiation rules we get:

\frac{dA}{dt} =C_{0}(1-x)^t \ln (1-x)\\\frac{dA}{dt} =100*0.88\ln(0.88)\\\frac{dA}{dt} =-11.25 \frac{mg}{h}

The rate is negative as it represents the amount of caffeine leaving the body at certain time.

3 0
3 years ago
I REALLY NEED SOMEONES HELP ON THIS PLEASE!! I NEED THIS DONE TODAY!
Rufina [12.5K]
The 5 in x - 5 needs to be negative in the table. So, change that and make everything else in that row negative.

You are then left with 3x^2 + x - 15x - 5

Simplify to 3x^2 - 14x - 5



Please consider marking this answer as Brainliest to help me advance. If you have any questions, please let me know.
8 0
3 years ago
Combine like terms. What is a simpler form of the expression?<br> -3(-4y + 3) + 7y
VikaD [51]
A simpler form of this expression would be 19y-9
6 0
3 years ago
Read 2 more answers
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