Provide an appropriate response.Find the arc length intercepted on the circumference of a circle by a central angle of 6 radians if the radius of the circle is 2.8 m.
A. 8.8 m
B. 16.8 m
C. 2.14 m
D. 12.48 m
Answer: B
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The following data show the diameter D and the height H, both in feet, of certain mature trees. Tree Cottonwood Hackberry Weeping willow Ponderosa pine Douglas fir D 2.4 5.06 6.07 8.06 14.08 H 80.87 113.1 95.05 164.81 223.23? A: Use power regression to model the height as a function of the diameter. Use two digits of accuracy for the coefficient and for the power.B: According to the model, what is the diameter of a mature tree that is 7.89 feet tall? Round your answer to two decimal places.C: If one mature tree has 4 times the diameter of another, how do their heights compare? Round your answer to two decimal places.
What will be an ideal response?
Determine whether or not B = A-1.A = 
B = 
A. Yes B. No
The middle term of the trinomial has been rewritten. Now factor by grouping.12x2 - 9x + 8x - 6
A. (3x + 2)(4x - 3) B. (12x - 2)(x + 3) C. (3x - 2)(4x + 3) D. (12x + 2)(x - 3)
Use the method suggested to compute mentally.Use front-end multiplying. 
A. 540 B. 539 C. 542 D. 541