Solve the problem.In studying the gravitational force between two objects, the expression 
occurs. Show that this expression can be written as 
What will be an ideal response?
= r2 - 2 rR cos ? + R2 cos2 ? + R2 sin2 ?
= r2 - 2 rR cos ? + R2(cos2 ? + sin2 ?)
= r2 - 2 rR cos ? + R2
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Perform the addition visually using symbols.-5 + (-1)
A. -6 B. 6 C. 4 D. -4
A formula is given, along with values for all but one of the variables in the formula. Find the value of the variable that is not given. Round to the nearest hundredth when necessary.d = rt; t = 5, d = 35
A. r = 30 B. r = 7 C. d = 7 D. r = 40
Use a graphing calculator to plot the data and find the quadratic function of best fit.The number of housing starts in one beachside community remained fairly level until 1992 and then began to increase. The following data shows the number of housing starts since 1992 (x = 1). Use a graphing calculator to plot a scatter diagram. What is the quadratic function of best fit?
A. H(x) = -2.679x2 - 26.607x + 168.571 B. H(x) = 2.679x2 + 26.607x + 168.571 C. H(x) = -2.679x2 + 26.607x - 168.571 D. H(x) = -2.679x2 + 26.607x + 168.571
The eigenvalues of the matrix 
are 
and 
style="vertical-align: middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_668134210a034f029ed7cca47" />. Find a non-zero eigenvector associated with each eigenvalue.
?
A. ?
, 
; 
, 
B. ?
, ; 
, 
C. ?
, 
; 
, 
D. ?
, 
; 
,
E. ?
, 
; 
, 