Please help me..stuck on problem.

Mathematics

1 answer:

Dvinal [7]3 years ago

4 0

7a
TSA = 2lw + 2lh + 2wh
TSA = 140 + 70 + 100 = 310 ft^2

7b

310 x $4 =$1240
cost = $1240

7c

V= wlh = 7×10×5 = 350 ft^3

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Simplify (23)^–2 genuinely confused

statuscvo [17]

Answer:

1/529

Step-by-step explanation:

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7 0

3 years ago

The table below shows the velocity y, in miles per minute, of a toy car at different times x, in minutes: Time (x) (minutes) 10

MrMuchimi

A. If you plot the points in a graph, it would look like that shown in the picture attached. If we use linear regression, the correlation is very poor. The coefficient of correlation (r2) is only 0.0017. There is no linear relationship between time and velocity.

B. The slope of the graph is equal to y2-y1/x2-x1, In this case, it would specifically be v2-v1/t2-t1

Slope = 0.8-0.2/20-10 = 0.06 miles/s^2

The slope represents the acceleration at time 10 to 20 minutes.

C. The table in the graph shows causation rather than correlation. The points in the data occur in a sequential manner.