Solve using Cramer's rule.-2x - 2y = -34-2x + 3y = 11
A. (-8, -9)
B. (-9, 8)
C. (9, 8)
D. (8, 9)
Answer: D
Mathematics
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Find the value of the exponential expression.
3
A. 3
B. 
C. 
D. 
Mathematics
Factor completely. Make sure you factor out the GCF first if possible. If prime, so state.x2 + 16x + 64
A. (x - 8)2 B. (x + 8)(x - 8) C. prime D. (x + 8)2
Mathematics
Solve using a proportion. Round your answer to the nearest hundredth when necessary.Find which is the better buy (lower cost per ounce) by finding each unit price rounded to three decimal places if necessary. Cream Rinse: $11.84 for 18 ounces$6.50 for 10 ounces
A. $11.84 for 18 ounces B. $6.50 for 10 ounces C. Both cost the same per ounce.
Mathematics
Evaluate the expression for the given values.4
+ 5
x = 5, y = -2
A. 10 B. 30 C. -30 D. -10
Mathematics