Solve the system of equations.49x2 + 4y2 = 196y - x = 7
A. , (2, 9)
B. , (7, 0)
C. , (3, 10)
D. , (0, 7)
Answer: D
Mathematics
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Find the simplified form for f(x) and list all restrictions on the domain.f(x) = -
A. f(x) = 10, x ? 2
B. f(x) = , x ? -2, 2
C. f(x) = 0, x ? -2, 0
D. f(x) = , x ? -2, 2
Mathematics
The two figures are congruent. Find the measure of the requested side or angle.The length of
A. = 5
B. = 10
C. = 17.5
D. = 12.5
Mathematics
Find the exact value of the expression without using a calculator.sin cos
+ cos
sin
A.
B.
C.
D. 1
Mathematics
Solve.The inmedance Z in an alternating current circuit (like the one used in your home and in your classroom) is given by the formula Z = , where V is the voltage and I is the current. Find the value of Z if
and
A. + 3i
B. -3 + i
C. 3 - i
D. - - 3i
Mathematics