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madreJ [45]
3 years ago
6

Evaluate 9^x2-8^2= Plss helppppp

Mathematics
1 answer:
mixer [17]3 years ago
4 0

Answer:

9x to the second power subtract 64

Step-by-step explanation:

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| f(x) = 6x + 2 g(x) = – 5x – 9 Find the product of f and g​
lukranit [14]

Answer:

the fourth one

Step-by-step explanation:

hope it helped!!!

3 0
3 years ago
The antibiotic clarithromycin is eliminated from the body according to the formula A(t) = 500e−0.1386t, where A is the amount re
PolarNik [594]

Answer:

Time(t) = 11.61 hours (Rounded to two decimal place)

Step-by-step explanation:

Given: The antibiotic  clarithromycin is eliminated from the body according to the formula:

A(t) = 500e^{-0.1386t}                 ......[1]

where;

A - Amount remaining in the body(in milligram)

t - time in hours after the drug reaches peak concentration.

Given: Amount of drug in the body is reduced to 100 milligrams.

then,

Substitute the value of A = 100 milligrams in [1] we get;

100= 500e^{-0.1386t}

Divide both sides by 500 we get;

\frac{100}{500}=\frac{ 500e^{-0.1386t}}{500}

Simplify:

\frac{1}{5} = e^{-0.1386t}

Taking logarithm both sides with base e, then we have;

\log_e (\frac{1}{5})= \log_e (e^{-0.1386t})

\log_e (\frac{1}{5})=-0.1386t         [ Using \log_e e^a =a ]

or

\log_e (0.2)=-0.1386t

-1.6094379124341 = -0.1386t

 [using value of \log_e (0.2) = -1.6094379124341 ]

then;

t = \frac{-1.6094379124341}{-0.1386}

Simplify:

t ≈11.61 hours.

Therefore, the time 11.61 hours(Rounded two decimal place) will pass before the amount of drug in the body is reduced to 100 milligrams


6 0
3 years ago
Gordon read 18 pages of a book about rockets in 40 minutes. What was the unit rate per minute? Per hour?
Ronch [10]

Answer:

he can read a page in about 2 minutes and i.d.k about the hour part

Step-by-step explanation:

you do

40 divided by 18 and get 2.2

5 0
3 years ago
Read 2 more answers
What is the value of x? show your work
Leni [432]
Divide 30 by 25 to obtain the scale factor as these are similar triangles. 30/25= 1.2
Multiply 20 by 1.2 to give the value of 4x-4. 20 x 1.2= 24.
Form the equation:
4x-4=24
4x=28
x=7
8 0
3 years ago
Read 2 more answers
Which table represents a linear function?
PilotLPTM [1.2K]

Answer: table C or 3

Step-by-step explanation:

If you graph it on paper then it creates a straight line, where the others do not.

4 0
4 years ago
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