Find the product.7ax5(-3ax3 - 6x2 + 3a)
A. -21a2x8 - 42ax7 + 21a2x5
B. -21a2x8 - 6x2 + 3a
C. -21a2x8 - 42ax7
D. -21ax3 - 42x2 + 21a
Answer: A
Mathematics
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Find the standard form of the equation of the ellipse satisfying the given conditions.Center at (0, 0); Focus at (3, 0); Vertex at (-5, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
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Find a and b.If -4 < x < -1, then a < 
x < b.
A. a = 
, b = - 
B. a = - 
, b = 
C. a = 
, b = 
D. a = - 
, b = - 
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Divide. Write the answer in lowest terms and as a whole or mixed number where possible.
÷ 1
A. 
B. 2
C. 
D. 
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Solve the problem. Give the answer to the nearest thousandth if necessary.A rectangle has a length of 
and a width of 
. What is the best estimate for its dimensions?
A. 20 by 9 B. 19 by 9 C. 19 by 8 D. 20 by 8
Mathematics