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mars1129 [50]
2 years ago
7

A company wants to test a new brand of dog food that has added omega-3 oils for healthy, shiny coats.

Mathematics
2 answers:
Elenna [48]2 years ago
7 0

Answer: The experiment is blinded because the volunteers in both groups are unaware of which dog food they received.

Usimov [2.4K]2 years ago
3 0

Answer:

The experiment is blinded because the volunteers in both groups are unaware of which dog food they received.

Please give me brainliest, I really need it.

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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
2 years ago
What is the solution for the inequality given below? Show work.<br> 3x - 4 &lt; -19
Ludmilka [50]

Answer:

x

Step-by-step explanation:

3x-4

Add 4 to both sides

3x

Divide both sides by 3

x

Hope this helps!

(Please mark brainliest)

5 0
3 years ago
Read 2 more answers
A field with an area of 2880 ft^2 has the shape of a rectangle, whose length is 12 ft larger than its width. Find the dimensions
tiny-mole [99]

ANSWER

w=48,l=60

EXPLANATION

Let the width of the field be, w , then,

the length of the field will be:

l = 12 + w

The area of a rectangle is

Area = lw

This implies that:

w(12 + w) = 2880

Expand

{w}^{2}  + 12w = 2880

{w}^{2}  + 12w  -  2880 = 0

(x + 60)(x - 48) = 0

This implies that,

w =  - 60 \: w = 48

The dimensions are positive, the width is 48 and the length is 12+48=60

8 0
3 years ago
Megan Hikes 15.12 mi in 6.3 hours. If Megan hike the same number of miles each hour, how many miles did she hike each hour.
rodikova [14]

Answer:

The answer is 2.4 Miles per hour  

Step-by-step explanation:

15.12 divided by 6.3= 2.4 MPH

6 0
3 years ago
Read 2 more answers
Multiply: (3x - 5)( 4x2 - 2x - 3)​
Klio2033 [76]

Answer:

-21

Step-by-step explanation:

3x-5=2

4x 2=2

2x-3=2

add them together you will get -21

6 0
3 years ago
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