Product of complex numbers (-3i +4) and (3i +4)
(x - y)(x + y) = x² - y²
(-3i +4)(3i +4) = (4 -3i )(4 + 3i) = 4² - (3i)² = 16 - 9*(-1)=16 + 9 = 25
Answer:
The first choice is correct
Answer:
B.) 45
Step-by-step explanation:
<h2>Greetings!</h2><h3>To find the total area of the bowling ball, which we presume is spherical, the equation is:</h3>
πr³
<h3>So we know that the radius is 5, so we can substitute that into the equation:</h3>
x π x 5³ = 523.599 or 524 to 1dp.
<h3>Seeing as this is 524 cubic inches, we can convert this into pounds by dividing this by 100, because one cubic inch weights

as stated.</h3>
524 ÷ 100 = 5.24lb
<h3>So your answer would be B, 5.24lb.</h3>
<h2>Hope this helps!</h2>
D, because two negative signs next to each other means to add so its pretty much 7/8+1/8 which equals 8/8 which also equals 1