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Sidana [21]
3 years ago
9

The table shows the soil density of several soil samples at different depths. A) Write the quadratic regression equation that mo

dels the data. Let x = depth below the surface and let y = soil density. (B) Use the equation to estimate the soil density of a sample at a depth of 20 m. Show your work. ( Look at the picture for the table and Answer Part A and Answer Part B) Will Mark Brainliest if correct.​

Mathematics
1 answer:
Alenkasestr [34]3 years ago
4 0

Answer:

depends on the tax percentage

Step-by-step explanation:

Hope this answer helps you.

Have a great day

Mark brainliest

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Mr. Smith has 15.6 pounds of oranges to pack for shipment. He can ship 2.4 pounds of oranges in a large box and 1.2 pounds in a
s2008m [1.1K]

Answer:

3 boxes.

Step-by-step explanation:

Let x represent number of 1.2 pounds boxes.

We have been given that Mr. Smith has 15.6 pounds of oranges to pack for shipment. He can ship 2.4 pounds of oranges in a large box and 1.2 pounds in a small box.

The oranges covered in x small boxes would be 1.2x    

Oranges packed in 5 large boxes would be 5\times 2.4\text{ pounds}=12\text{ pounds}.

We can represent our given information in an equation as:

1.2x+12=15.6  

1.2x+12-12=15.6-12  

1.2x=3.6  

\frac{1.2x}{1.2}=\frac{3.6}{1.2}  

x=3  

Therefore, the minimum number of small boxes required to ship the rest of the oranges would be 3 boxes.

7 0
3 years ago
Polygon C and polygon D are similar. The perimeter of polygon C is 192 inches, and the perimeter of polygon D is 48 inches. If o
Marianna [84]

Answer:

B. 2 in.

Step-by-step explanation:

First, put the two perimeters together to form a fraction.

192/48, which can simplify to 4/1

Now, following the order in which you put the perimeters (I used C/D,) set it equal to the sides.

\frac{4}{1}  =  \frac{8}{x}

Now, cross multiply. (multiply 1 and 8, 4 and x.)

4x = 8

Now, solve.

x=2 inches.

3 0
3 years ago
If cos Θ = negative 4 over 7, what are the values of sin Θ and tan Θ? (2 points)
seropon [69]
I accept that θ in second quadrant, therefore sinθ > 0, cosθ < 0 and tanθ < 0.

\cos\theta=-\dfrac{4}{7}\\\\We\ know:\sin^2x+\cos^2x=1\to\sin^2x=1-\cos^2x\to\sin x=\sqrt{1-\cos^2x}\\\\subtitute:\\\\\sin x=\sqrt{1-\left(-\dfrac{4}{7}\right)^2}=\sqrt{1-\dfrac{16}{49}}=\sqrt{\dfrac{33}{49}}=\dfrac{\sqrt{33}}{7}

We\ know:\tan x=\dfrac{\sin x}{\cos x}\\\\subtitute:\\\\\tan x=\dfrac{\sqrt{33}}{7}:\left(-\dfrac{4}{7}\right)=-\dfrac{\sqrt{33}}{7}\cdot\dfrac{7}{4}=-\dfrac{\sqrt{33}}{4}
5 0
3 years ago
What is the difference of 31,678 and 28,995
Tcecarenko [31]
The difference is 2,683 
All you do is subtract 28,995 from 31,678 to get the answer 

4 0
3 years ago
Read 2 more answers
Please help me! I will give brainliest
Alika [10]
The answer is B because it equals 8 1/36
7 0
3 years ago
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