Answer:
<em>12 </em>
<em> + 28 </em>
<em> - 60 r³ + 28 r² </em>
Step-by-step explanation:
a(b ± c) = ab ± ac (distributive property)
2r²(6r³ + 14r² - 30r + 14) = <em>12 </em><em> + 28 </em><em> - 60 r³ + 28 r²</em>
Answer:
B
Step-by-step explanation:
well by rotating ΔABC by 60*(degrees) about A , such that in ΔA'B'C,B =C'
you can see that ΔAPP' is equilateral side length 1, meaning that <APP' =60*
you can also see that ΔCPP' is a 30- 60- 90 right angle also meaning that <CPP' =60* now,by adding the two together you see that < ACP =120* now you can also use the law of cosins and soooo
s2=(AP)2+(CP)2-2(AP)(CP)cos120*
s2=1+4-2(1)(2)cos120*
s2=5-4 (-1over2)
s=
7
so b is your answer hope this helped
<span>Given that the directrix of the parabola is at y = -8 and the focus is at point (8, 16), this means that the parabola opens upwards and the x part of the equation of the parabola is squared. The x-value of the vertex of a parabola is the same as the x-value of the focus while the y-value of the vertex is half the sum of y-values of the focus and the directrix. Therefore, the vertex of the given parabola is (8, (16 - 8)/2) = (8, 8/2) = (8, 4).</span>
There would be $13410 because 4500 x 0.22 x 9 = 8910
4500 + 8910 = 13410
Answer:
7x^5 − x^3 − x^2 + 3x
Step-by-step explanation:
I got that by combining like terms.
(7x^5) + (3x^4 + −3x^4) + (2x^3 + −3x^3) + (−5x^2 + 4x^2) + (5x + −2x)
the answer isn't in the picture the closest would be A so idk if i made a mistake but I hope u still understand how to solve it :)
