Find the indicated root, or state that the expression is not a real number.
A. not a real number
B. -1
C. 1
D. 0
Answer: A
Mathematics
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Use the properties of angle measures to find the measure of each marked angle.
a = (x + 18)°b = (x + 118)°
A. 79°, 79°, 22° B. 11°, 22°, 147° C. 22°, 29°, 129° D. 11°, 22°, 57°
Mathematics
Find the Jacobian 
or 
(as appropriate) using the given equations.x = 8u cos 6v, y = 8u sin 6v
A. 288u B. 384u C. 384v D. 288v
Mathematics
Solve the equation.x - 
= -7
A. {6} B. {-6} C. {-5} D. {5}
Mathematics
Supply missing statements and missing reasons for the following proof.Given: Rectangle MNPQ with diagonals 
and 
Prove: 
S1. R1.S2. 
and 
are rt. 
R2.S3. 
R3.S4. R4. The diagonals of a rectangle are congruent.S5. R5.
What will be an ideal response?
Mathematics