Approximate the given square root to the nearest tenth using the guess-and-check method.
A. 12.7
B. 12.6
C. 12.5
D. 12.4
Answer: B
Mathematics
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Use ratios or conversion factors to convert the measures of time. Round to hundredths.420 seconds to minutes
A. 7 min B. 13 min C. 3 min D. 17 min
Mathematics
Perform the arithmetic operations and simplify.- 
? 
? 
A. 
B. - 
C. - 
D. 
Mathematics
Find the zeros of the function in the interval [-2?, 2?].f(x) = 3 cos x
A. 0, ±?, ±2?
B. 0, ±
, ±
C. ±
, ±?, ± 
, ±2?
D. ±
, ±
Mathematics
Graph the given function. Identify the vertex and the intercepts.y = 4x2 - 40x + 104
A. Vertex (5, 4)
x-intercepts: none
y-intercept: 
B. Vertex (-5, 4)
x-intercepts: none
y-intercept 
C. Vertex (-5, 4)
x-intercepts: none
y-intercept: 104
D. Vertex: (5, 4)
x-intercepts: none
y-intercept: 104
Mathematics