Use a proportion to solve the problem.On Hector's bicycle, the ratio of pedal turns to rear-wheel turns in second gear is 4 to 7. If his rear wheel turns 434 times per mile, how many times does he turn the pedal in one mile?
A. 248 times
B. 441 times
C. 438 times
D. 759.5 times
Answer: A
Mathematics
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Find the equation of the hyperbola satisfying the given conditions. The center is at the origin.Asymptote y = 
x, vertex (0, 8)
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Mathematics
Change the logarithmic expression to an equivalent expression involving an exponent.log416 = 2
A. 416 = 2 B. 42 = 16 C. 162 = 4 D. 24 = 16
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
- 
A. 
B. 0
C. 8x
D. 
Mathematics
Graph the parabola and label the vertex. Find the x-intercept.x = 
y2
A. vertex (0, 0), x-intercept (0, 0)
B. vertex (0, 0), x-intercept (0, 0)
C. vertex (0, 0), x-intercept (0, 0)
D. vertex (0, 0), x-intercept (0, 0)
Mathematics