Hello,
2x²+x-14=0
Δ=1+4*14*2=113
x=(-1-√113)/4=-2,8839...≈-2.88
or x=(-1+√113)/4=2,40753≈2.41
The probability that each is right-handed is 0.9, so the probability that all are right-handed (none is left-handed) is
0.9³ = 0.729
<span>the volume of the sphere = 4/3 * pi * (radius)^3
= 4/3 * 3.14 * (3)^3
DO you math and you would get V = 113.04 ~ 113
</span>
Quotient is the result of dividing two numbers.
x= the unknown number
The equation is x divided by 9 equals x minus 40.
x/9= x - 40
multiply both sides by 9
(9)(x/9)= (9)(x - 40)
x= 9x - 360
subtract 9x from both sides
-8x= -360
divide both sides by -8
x= 45
ANSWER: The number is 45.
Hops this helps! :)
Answer:
Step-by-step explanation:
15 boys + 12 girls = 27 students
15:27 = 5:9