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Nadusha1986 [10]
2 years ago
11

Connor can travel 2 3/4 miles in 2 1/2 hours. What is his average speed in miles per hour?

Mathematics
1 answer:
mars1129 [50]2 years ago
8 0

Answer:

C 1.1 mph

Step-by-step explanation:

Divide 2 3/4 by 2 1/2 to get 1.1

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Two chicken coops are to be built adjacent to one another from 168 ft of fencing. What dimensions should be used to maximize the
Cerrena [4.2K]

Answer:

21 ft by 28 ft

Step-by-step explanation:

To maximize the area, see the attached.

Perimeter will be 4l+3w which is equal to the fencing perimeter, given as 168

4l+3w=168

Making l the subject then

4l=168-3w

l=42-¾w

Area of individual land will be lw and substituting l with l=42-¾w

Then

A=lw=(42-¾w)w=42w-¾w²

A=42w-¾w²

Getting the first derivative of the above with respect to w rhen

42-w6/4=0

w6/4=42

w=42*4/6=28

Since

l=42-¾w=42-¾(28)=21

Therefore, maximum dimensions are 21 for l and 28 for w

4 0
2 years ago
What can you say about the y-values of the two functions <img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%203%5Ex-3" id="TexForm
slavikrds [6]

Answer:

a) The minimum y-value of f(x) is -3

d) The minimum y-value of g(x) is -3

Step-by-step explanation:

Given in the question that,

f(x) = 3^{x}-3

g(x) = 7x² - 3

<h3>A)</h3>

At large negative exponents, the value approaches to zero

y = 3^{-100}-3=-3

y = 3^{-1000}-3=-3

y = 3^{-10000}-3=-3

<h3>B)</h3>

Minimum y-value of g(x) will be when x = 0

y = 7x² - 3

y = 7(0) - 3

y = -3

4 0
2 years ago
The total volume of a tree increases 6% each year. what will its volume be after 7 years if its volume is 5 cubic meters now?
forsale [732]

Answer:

7.52 m^3

Step-by-step explanation:

This is like compound interest in a banking calculation

Future volume = 5 (1 + .06)^7 = 7.52 m^3

4 0
1 year ago
Which of the following expressions are equivalent to 6 + (-4) - 5 ?
Gekata [30.6K]

Answer:

A

C

Step-by-step explanation:

A and C gives same result....

6 0
2 years ago
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In the year 2012, 12\%12%12, percent of the residents of the US moved to a different residence. Suppose that several census work
yan [13]

Answer: approximately normal (c) trust me-khan academy

Step-by-step explanation:

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