Answer:
64n = 4nr2
Step-by-step explanation:
So the formula for the surface area of a sphere is A=4πr^2
Now A= 64n
(im assuming n is supposed to be pi)
so 64n=4πr^2
thus the last one would be correct (also assuming its supposed to be r^2)
Answer:
600
Step-by-step explanation:
ez
I’m pretty sure it’s proportional because the line on the graph is straight.
Step-by-step explanation:
multiplying expressions.
remember every term of one expression has to be multiplied with every term of the other expression, and the results are added up (while considering their individual signs, of course).
1.
(-3×3 + 2x - 4)(3x - 2)
(-9 + 2x - 4)(3x - 2)
(-13 + 2x)(3x - 2) = -13×3x + -13×-2 + 2x×3x + 2x×-2 =
= -39x + 26 + 6x² - 4x = 6x² - 43x + 26
2.
let's do the other multiplication and compare the result with the result of 1 :
(-13 + 2x)(2x - 3) = -13×2x + -13×-3 + 2x×2x + 2x×-3 =
= -26x + 39 + 4x² - 6x = 4x² - 32x + 39
no, this product is not the same as in 1.
Answer:
quadratic trinomial
Step-by-step explanation:
