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3 years ago

Can someone please help me please I really need help please help me

Mathematics

1 answer:

Montano1993 [528]3 years ago

8 0

Answer:

Pretty sure the first one is correct :)

Step-by-step explanation:

I hope this helps!

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Lateral surface area of this gift box

azamat

I think it’s letter C

7 0

3 years ago

What is a 3 2/3 model example?

Annette [7]

I don't have an exact model but this site can help you.

https://learnzillion.com/lesson_plans/7928-use-models-for-division-of-fractions-by-fractions/

I hope this helps you in your studies and have an awesome day!

8 0

3 years ago

Please help me Aspa Plaease

Natasha_Volkova [10]

She need 3 bags since the area of the triangle is base x height /2
Area 20*6=120
120/2=60
60/20= 3 since each bag covers 20m^2

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

One root of is x = 6. What are all the factors of the function? Use the Remainder Theorem.

makkiz [27]

3 and 2 should be the only roots

8 0

4 years ago