Match the given equation with one of the graphs.25x2 - 4y2 = 100
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Write the logarithmic equation as an exponential equation.ln M = 3
A. eM = 3 B. M3 = e C. e3 = M D. 3e = M
Mathematics
Find the expression.u = -2i + 5j , v = -7i + 6j ; Find -4u - 4v.
A. -20i + 4j B. -8i - 8j C. -9i + 11j D. 36i - 44j
Mathematics
Match the given function to its graph.1) y = sin (
x)2) y = 
cos x3) y = 
sin x 4) y = cos (
x)A B
height="200" width="200" />CD
A. 1A, 2B, 3C, 4D
B. 1A, 2C, 3D, 4B
C. 1B, 2D, 3C, 4A
D. 1A, 2D, 3C, 4B
Mathematics
Find the correlation coefficient.The test scores of 6 randomly picked students and the number of hours they prepared are as follows: 
A. -0.2242 B. 0.6781 C. 0.2242 D. -0.6781
Mathematics