If duke has 5 quarters that means he has 5 dimes making a total of $1.75
if donna has 60 cents more than him she has a total of $2.35
to figure out the number of quarters she has just dived $2.35 by .25 cents
she has 9 quarters and 1 dime.
Answer:
4/100 is the fraction
Step-by-step explanation:
there are four blue blocks shaded out of the 100
X=14
Y=14
Perimeter=56
The reason is because if you see 8 and 6 you can see that the lines are equivalent so I just assumed that the missing lines are 8 and 6. So I added the number up causing x and y to be 14 then for perimeter I simply just multiplied 14x4 which is 56.
Answer:
-6
Step-by-step explanation:
y intercept is -6 because formula of gradient is y=mx+c.......c is the y intercept
The axis of symmetry can be found by finding the average of the zeros, a derivation from the conservation of energy :P, or by finding the point when the velocity is equal to zero.
df/dx=-6x+12 so df/dx, velocity, equals zero when:
-6x+12=0
6x=12
x=2 so the axis of symmetry is the vertical line x=2
....
average of zeros...
3x^2-12x+6=0
x^2-4x+2=0
x^2-4x=-2
x^2-4x+4=2
(x-2)^2=2
x-2=±√2
x=2±√2 so the average of the zeros is obviously 2.
....
conservation of energy
vf-vi=at When vf=0, this is the maximum value for f(x)...
-vi=at, vi=b and a(acceleration)=2a(from quadratic) and t=x
-b=2ax
x=-b/(2a) in this case
x=-12/(2(-3))
x=-12/-6
x=2
