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Zepler [3.9K]
3 years ago
11

Which description most accurately summarizes the samples results? Help

Mathematics
2 answers:
Klio2033 [76]3 years ago
3 0

Answer:

I do it's option B your welcome!

Ede4ka [16]3 years ago
3 0

Answer:

<h2>The range is more consistent with pure cow manure, but the mixture of cow manure and mashed bananas creates more biogas overall.</h2>

Step-by-step explanation:

In this data, there are two true facts, <em>if cow manure and mashed bananas are mixed, then there would be more biogas, more energy. </em>The second fact is that <em>the range of both box plots is not the same.</em>

<h3>Pure cow manure's range: </h3>

Higher \ value - Lower \ value=26-10=16

<h3>The mixture's range:</h3>

Higher \ value - Lower \ value=50-22=28

<em>There are different ranges.</em>

Therefore, based on these two facts, the right answer is the upper right, because other options violate these facts given.

So, the range is more consistent with pure cow manure, but the mixture of cow manure and mashed banana creates more biogas overall.

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SEE ATTACHED
fenix001 [56]
To me personally, the first bit f(g(x)) is easy and the domain is tricky. Let's try explain this.

A function takes an input number and returns an output number depending on the function. Look at f(x) = x+3, if we let the input number be 2 then we say that f(2) = 5. We could do f(π) to give us π+3 or even f(x²) to give us x² +3. The trick is to substitute the input into the function equation.

You have been asked to find f(g(x)). You know f(x) = \frac{1+x}{1-x}. Putting numbers in at this point would be easy (try work out f(2), you'll do it really quick) but you have to put in g(x).

f(g(x)) = \frac{1+g(x)}{1-g(x)}
we also know that g(x) = \frac{x}{1-x} so we can say that
f(g(x)) = \frac{1+ \frac{x}{1-x} }{1- \frac{x}{1-x} } and that is f(g(x)) but the question requires that we simplify it so
\frac{1+ \frac{x}{1-x} }{1- \frac{x}{1-x} }  =  \frac{ \frac{1-x}{1-x} +  \frac{x}{1-x} }{ \frac{1-x}{1-x} - \frac{x}{1-x} } =  \frac{ \frac{1}{1-x} }{ \frac{1-2x}{1-x} } =  \frac{1}{1-2x}

f(g(x)) = \frac{1}{1-2x}

Now for the tricky bit (for me, at least). The domain is the full set of values that you can 'put in to' the function and still get a real value out. So how do we work out what numbers 'break' the function? I like to use the fact that DIVIDING BY ZERO IS IMPOSSIBLE. What value of x can we put into the function to make it so the function is being divided by 0? i.e. 1-2x = 0 solve that and you have a value of x that isn't part of the domain.

This means the domain is all real numbers EXCEPT the solution to that equation. (Because if we put that value into f(g(x)) it's impossible to get a value out.)

[I know this was a lot to read, if you have any questions or don't get anything feel free to message me or leave a comment.]

5 0
3 years ago
A chestnut falls out of a tree 45 feet above the ground. Use the vertical motion model, H=-16t^2+vt+s s to find how long it take
valentinak56 [21]

Answer:

1.7 seconds

Step-by-step explanation:

we have

H=-16t^2+vt+s

where

v is the initial velocity (in feet per second)

s represents the initial height (in feet)

In this problem we have

v=0 ---> because the object is dropped

s=45\ ft

substitute

H=-16t^2+45

Remember that

When the chestnut hit the ground the value of H is equal to zero

so

For H=0

-16t^2+45=0

solve for t

16t^2=45\\t^2=2.8125\\t=\pm1.7\ sec

therefore

The solution is t=1.7 sec

7 0
3 years ago
The Venn diagram shows how many of the employees at a bookstore speak Spanish, Chinese, and Russian.
Lostsunrise [7]

Answer:

The correct answer is D: 28

8 0
3 years ago
Read 2 more answers
I need an answer quickly as im in lesson now
garri49 [273]
Object a:

perimeter is all the sides added together!
9+9=18
4.1+4.1= 8.2
18+8.2=36.2

object A’s perimeter is 36.2 CM
————————————————————
object b:
7.2+3+ 3.6= 13.8

object B’s perimeter is 13.8 CM

————————————————————
hope this helped! xoxo
6 0
3 years ago
PLEASE ANSWER FAST!<br> you dont have to explain but im trusting on u have a good day
JulsSmile [24]

Answer:

126 square inches

Step-by-step explanation:

The area of the figure = area of the parallelogram + area of the square + area of the rectangle

✔️Area of the parallelogram = b*h

b = 10 in.

h = 3.5 in.

Area = 10*3.5

Area = 35 in.²

✔️Area of the square = s²

s = 4 in.

Area = 4²

Area = 16 in.²

✔️Area of the rectangle = L*W

L = 12.5 in.

W = 6 in.

Area = 12.5*6

Area = 75 in.²

✅Area of the figure = 35 + 16 + 75

= 126 in.²

8 0
3 years ago
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