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leonid [27]
3 years ago
10

PLS HELP IM DOING A TEST!!

Mathematics
1 answer:
zysi [14]3 years ago
6 0

Answer:

d

Step-by-step explanation:

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WILL GIVE BRAINLIEST
Evgesh-ka [11]
All you have to do is plug in the given values into the given equation and evaluate.

The expression is,

A(t) =  l{e}^{rt}
But we have to analyze the problem carefully. This is a natural phenomenon that can be modelled by a decay function. The reason is that, after every hour we expect the medicine in the blood to keep reducing.

Therefore we use the decay function rather. This is given by,


A(t) =  l{e}^{-rt}

where,

l = 100 \: milligrams

r =  \frac{14}{100}  = 0.14

and

t = 10 \: hours

On substitution, we obtain;

A(10) =  100 \times {e}^{ - 0.14 \times 10}


A(10) =  100 \times {e}^{ - 1.4}



Now, we take our calculators and look for the constant
e

,then type e raised to exponent of -1.4. If you are using a scientific or programmable calculator you will find this constant as a secondary function. Remember it is the base of the Natural logarithm.



If everything goes well, you should obtain;

A(10) =  100 \times 0.24659639


This implies that,


A(10) =  24.66

Therefore after 10 hours 24.66 mg of the medicine will still remain in the system.
3 0
3 years ago
On Saturday, 94,887 passengers
garik1379 [7]
Answer: 107,997

Reasoning: All you need to do is add the two passenger numbers for the two busses to get the total number of passengers on them on Saturday.
I hope that helps
4 0
3 years ago
Subtract: (3x^2 − 8x + 3) − (−5x^2 + 4x − 5)
koban [17]

Answer:

A

Step-by-step explanation:

Add 3x^2 and 5x^2 now it = 8x^2

Add -8x and -4x = -12x

look at your answer choices the only one that has 8x^2-12x is A

6 0
3 years ago
Read 2 more answers
Can y'all help me please<br><br>n - 5.6 = 14.9​
horrorfan [7]

Answer:

20.5

Step-by-step explanation:

n=14.9+5.6

n=20.5

3 0
3 years ago
What are the zeros of the polynomial function? f(x)=x2−12x+20 Enter your answers in the boxes. The zeros of f(x) are and
Schach [20]
f(x)=x^{2} -12x+20
f(x)=0
xx^{2} -12x+20=0
Factoring:
(x-2)(x-10)=0
Two possible soolutions:

x-2=0 [tex]x=2

x-10=0
x=10

The zeros of the polynomial function are x=2 and x=10 


5 0
3 years ago
Read 2 more answers
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