Answer:
To find a b and c in a quadratic equation, the x^2 number is a, so 7x^2 is your a value, your b value is just the x, so your b value is -9, and your c value is the regular number, which is 18. a=7x^2 b=-9x c = 18. So your answer is answer B.
Step-by-step explanation:
The circumference is found by multiplying the radius by pi by 2
And then the arc length would be multiplied by the fraction of the circle..
So using what you wrote is correct, but the answer you got is incorrect.
2x 3.14 x 90 = 565.2 meters
565.2 x 90/360 = 141.3 meters
Answer: x=5 y=-6
(5,-6)
Step-by-step explanation:
Solve by elimination

multiply x-5y=35 by 3
= 3x-15y=105


-

divide 9 on both sides
y= -6
Now solve for x
you must plug in -6 for y in either equations
i plugged in -6 for y in 3x-15y=105




subtract 90 on both sides



Please mark brainliest
Answer:
26 (I think) :)
Step-by-step explanation:
i don’t know how to…
Answer:
2
3 x 2 Three to the second power times two
Step-by-step explanation:
PLZ MARK ME BRAINLYIST