When applying indirect proofs, we assume the negation of the conclusion is true, and show that this assumption would lead to nonsense, or contradiction.
In our case we assume a is not smaller than 7, that is we assume a≥7.
a≥7 then, multiplying both sides by 3:
3a≥21, then, adding both sides 7:
3a+7≥28,
which is a contradiction because 3a+7 is smaller than 28.
So our assumption is wrong, which means the opposite of it is correct.
Answer: assume a≥7
x × 44ft =3564
× = 81
area of the section for a picnic
= 1/2 × 44 × 81
= 1782 ft^2
The expanded form is adding all the digits so the answer is
700+50+7+0.9+0.02+0.003
Vertical angle are always congruent
[ Answer ]
[ Explanation ]
= 6
Multiply Both Sides By 19
= 6 · 19
Simplify:
X = 114
Check Your Work:
Simplify:
= 6
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