<span>27x</span>⁴<span>a</span>²<span>+18x</span>²<span>a</span>³<span>=9x</span>²<span>a</span>²(3x²+2a)
Complementary = angle+other angle = 90 degrees
90-26(given)=64
There is only one complimentary angle to any other angle, so 64 is the only other one. Sin(64)=.899
Sin(64)=cos(26)
This is because cosine and sine are actually THE SAME. Cosine exists because there's sine. Cosine is sine moved over on a graph a bit. The sine of any angle, plus 90degrees (or pi/2) is equal to the cosine of that angle
Cos(x)=sin(x+90) <--degrees
Cos(x)=sin(x+pi/2) <-- radians(from unit circle)
Unit circle has 90 degrees at pi/2 which is why that works. Using a graphing calculator in degrees, you'd use the first equation I gave to prove that they're equal, and in radian mode, you'd use the second one. Cosine is Co in front of sine. Co meaning complimentary, which is why the problem equals each other when solved
Answer:
the swnser correct is letter B
Answer:
x^2-6x+17.23
Step-by-step explanation:
y= -1.02(x-3)^2+9.25
multiply (x-3)(x-3)
you get -1.02+x^2-3x-3x+9+9.25
solve x^2-6x+18.25
-1.02
answer x^2-6x+17.23
First 99 digits.
3.1415926535 8979323846 2643383279 5028841971 6939937510 5820974944 5923078164 0628620899 8628034825 342117067
