Collect like terms:
4r^2 + (-2 + 6)
Simplify:
4r^2 + 4
DONE !!
Answer:
(2/5)√5 ≈ 0.894427
Step-by-step explanation:
You require the y-coordinate of the point that satisfies two equations:
x^2 +y^2 = 1
y = 2x
Substituting for x, we have ...
(y/2)^2 +y^2 = 1
y^2(5/4) = 1
y^2 = 4/5
y = (2/5)√5 ≈ 0.894427
The sine of the angle is (2/5)√5 ≈ 0.894427.
Answer:
The answer of the addition of 3/5, 5/8 and 15/32 is 1/2
Step-by-step explanation:
3/5 + 5/8 + 15/32
We find the LCm of the denominators, that is, 5, 8 and 32
LCM = 5*32 = 160
[(160/5 + 3) + (160/8 + 5) + (160/32 + 15)]/160
[(32+3) + (20+5) + (5+15)]/160
[35+25+20]/160
80/160 = 1/2
Answer:
Step-by-step explanation
I get the same answer you do, but I'm not at all certain I'm correct. I would have done it just as you did letting each y value define the new x value and then putting the - on the left in at the very end.
f(1) = 3
f(3) = -1
f(-1) = 7
But there is a minus in front of the left most f. That would make it - 7
Answer:
80,84,86,87, 91, 92, 90,94, 100
Step-by-step explanation:
Order them from low too high number grades.
