Solve the system of two equations in two variables. 9x + 4y = -63 3x - 2y = -21
A. (-7, 1)
B. No solution
C. (-7, 0)
D. (-8, 1)
Answer: C
Mathematics
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Write each whole number in expanded form.80,320
A. 8000 + 30 + 2 B. 80,000 + 300 + 20 C. 8000 + 300 + 2 D. 80,000 + 3000 + 20
Mathematics
Divide and simplify to the form a + bi.
A. -2 + 2i B. i C. Undefined D. 2 + 2i
Mathematics
Express the statement as an equation involving the indicated variables.The area A of a triangle is one-half the product of its base b and its height h.
A. A = bh
B. A = 
bh
C. A = 2bh
D. A = 
(b + h)
Mathematics
Decide whether the statement is an example of the commutative, associative, identity, inverse, or distributive property.5 + (-5) = 0
A. Identity B. Associative C. Commutative D. Inverse
Mathematics