<span>7r²+9=1
</span><span>the equation is contradictory, just to prove
7r</span>² + 9 = 1
7r² + 9 -1 = 0
7r² + 8 = 0
<span>We write the equation in the form of products of
</span>
7 * (r² + 8/7) = 0
<span>the product is equal to 0 when one of the factors is zero
</span>
7≠0 ∨ (r² + 8/7) = 0
r² ≠ - 8/7
<span>any number squared is not negative.
</span><span>We proved that none of the factors is not equal to zero , so the right side of the equation is not equal to the left . The equation is contradictory</span>
Y= (x(9/5)) + 32; Ex: y=(100(9/5)) + 32 —> 100 x 1.8 (or 9/5) = 180–> 180 + 32= 212 F
Answer:
Step-by-step explanation:
Angles 1 and 3 are same as vertical pair, they are also same with angles 5 and 7 for same reason.
<u>Angle 8 is supplementary with angle 5, so:</u>
m∠1 = m∠3 = m∠5 = 180° - 64° = 116°
The answer is $213 because you subtract the price sold by the price he bought them for and then you add them together (see work)
