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sleet_krkn [62]
3 years ago
6

The median salary for a chiropractor in the United States is $81,500 per year, according to the U.S. Department of Labor. A grou

p of recent graduates believe this amount is too low. In a random sample of 205 chiropractors who recently graduated, 170 began with a salary of more than $81,500 and five earned a salary of exactly $81,500. State the null hypotheses and alternate hypotheses.
Mathematics
1 answer:
dsp733 years ago
7 0

Answer:

attached

Step-by-step explanation:

attached

Download docx
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Help me pls and show me how u did it their is no graph so how would I do this algebraically
Ahat [919]
Subtract 4<span> from both sides 

</span><span><span>y−4>−2x</span>
<span>Divide both sides by -2 
</span>
x>-y-4/2 
 
  Question 2 -         y>x-4 

Add 4 to both sides

<span><span>y+4>x

Switch sides
</span>
<span><span>x<y+4</span><span>
</span></span></span>
</span>
8 0
4 years ago
Given any triangle in the plane, associate to each side an outward pointing normal vector of the same length as the side. Show t
Zigmanuir [339]

Let , a, b and c be the length of three sides of triangle, represented in terms of vectors as \vec{a},\vec{b},\vec{c}.

Now, vector of same Magnitude acts as normal vector to each side.

So, equation of any vector p having normal q is given by

      \vec{p} \times\vec{q}

Now sum of three vector and it's normal is given as

    =\vec{a} \times\vec{a}+\vec{b} \times\vec{b}+\vec{c} \times\vec{c}\\\\=0+0+0\\\\=0

Cross product of two identical vectors is Zero.

\rightarrow \vec{i} \times\vec{i}=0

8 0
3 years ago
Which expression is equivalent to?
balandron [24]
The answer is number 2
8 0
3 years ago
The table shows the distance y (in miles) that you travel on a road in x minutes. What type of function best models the data?
evablogger [386]

Answer:

Linear Function

Step-by-step explanation:

Given

The table showing values of x and y

Required

Determine the type of function

To determine the type of function, the table represents;

One will need to determine the table equation.

Start by solving for the slope;

m = \frac{y_1 - y_2}{x_1 - x_2}

When x - 0; y = 0 and When x = 80; y = 60.

This gives

m = \frac{0 - 60}{0 - 80}

m = \frac{- 60}{- 80}

m = \frac{3}{4}

The formula is determine as follows;

y - y_1 = m(x - x_1)

When x - 0; y = 0; m = 3/4; This gives

y - 0 = \frac{3}{4}(x - 0)

y = \frac{3}{4}(x - 0)

Open Bracket

y = \frac{3}{4}x - 0

y = \frac{3}{4}x

The above is an example of a linear equation.

<em>Hence; option B answers the question</em>

8 0
3 years ago
A boat travels 12 Mph in still water. It can travel 18 miles upstream in the same time that it can travel 24 miles downstream. W
quester [9]

Answer:

The current of the water is 1.714 mph.

Step-by-step explanation:

Let the boat in t hours can travel 18 miles upstream, and  24 miles downstream.

Therefore, if the speed of the boat in still water is 12 mph and that of water is x mph , then we can write  

\frac{18}{t} = 12 - x ........ (1) and  

\frac{24}{t} = 12 + x ............ (2)

Now, adding those two equations (1) and (2) we get,

\frac{18}{t} + \frac{24}{t} = 24

⇒ t = 1.75 hours.

Now, from equation (1) we get

\frac{18}{1.75} = 12 - x

⇒ x = 1.714 mph

Therefore, the current of the water is 1.714 mph. (Answer)

4 0
3 years ago
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