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stira [4]
2 years ago
9

20 POINTS PLEASE HELP ASAP

Mathematics
1 answer:
Brut [27]2 years ago
6 0

Answer:

A. If we consider two right triangles one Δ ABD and Δ BCE, where D(2,100) and E(1,60) points

B. From the graph, it is clear that the initial value of the graph is 60 m and it represents the initial position of the shark i.e. at t = 0 min, the shark was at a depth of 60 m from the water surface.

 

The slope of the graph is 40 means the rate of change of distance from the Ocean surface of the shark with respect to time in minutes will be 40 m per min.

Step-by-step explanation:

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Step-by-step explanation:

3 0
3 years ago
find the nonpermissible replacement for the variable x in this expression (x^2)/(2x-4) ? find the nonpermissible replacement for
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I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
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5 0
3 years ago
Eight plus the quotient of a number and 3 is -2
Alex17521 [72]
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3 0
3 years ago
How many days are in 100 years
rusak2 [61]

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3 0
3 years ago
Read 2 more answers
Given that the sum of squares for error is 60 and the sum of squares for regression is 140, then the coefficient of determinatio
Anastasy [175]

Answer:

<h2>0.7</h2>

Step-by-step explanation:

The coefficient of determination which is also known as the R² value is expressed as shown;

R^{2} = \frac{sum\ of \ squares \ of \  regression}{sum\ of \ squares \ of total}

Sum of square of total (SST)= sum of square of error (SSE )+ sum of square of regression (SSR)

Given SSE = 60 and SSR = 140

SST = 60 + 140

SST = 200

Since R² = SSR/SST

R² = 140/200

R² = 0.7

Hence, the coefficient of determination is 0.7. Note that the coefficient of determination always lies between 0 and 1.

7 0
3 years ago
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