Answer:
the correct answer is D
it is d
Step-by-step explanation:
i did the unit test is and got 100
a) Desiree is correct 630000÷70=900
x=142, y=-360. (142, -360).
5x+2y=-10
3x+y=66
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-2(3x+y)=-2*66
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-6x-2y=-132
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-x=-142
x=142
3(142)+y=66
426+y=66
y=66-426
y=-360
-1
2√21
1) Simplify.
√84
2) Simplify √84 to 2√21.
