Write and solve an equation of ratios:
1/4 pizza $5
------------- = -----------
x $8
2 pizza
Then (1/4)($8) = ($5)x, or x = --------------- (that's 2/5 of a whole pizza).
5
Answer:
A)6, 2, -2,-6
Step-by-step explanation:
a(n) = a +(n-1)d
a(n) = a +dn-d
a(n) = a-d + dn
a(n) = 10 - 4n
So d=-4
to get a: (a-d)=10
a=10-4=6
The first four terms:
a(1) = 6 +(1-1)-4=6
a(2) = 6 +(2-1)-4=2
a(3) = 6 +(3-1)-4=-2
a(4) = 6 +(4-1)-4=-6
it will be A
hope this helps
Answer:
c.Observational study. The variable of interest is the result of either correct or incorrect to each trial.
Step-by-step explanation:
Observational study is the type of study when a researcher don't influence the outcome of an experiment by imposing a treatment and only observe the outcome of an experiment. A nine year old tested professional observes therapists choices and so this is the observational study.
A nine year old tested professional observes therapists choices and the choice of therapist can be correct or incorrect. So, the variable of interest is the result of either correct or incorrect to each trial.
Answer:
third option
Step-by-step explanation:
Using De Moivre's theorem
(
+ i)³ , then
|
+ i |
= ![\sqrt{(\sqrt{3})^2+1^2 }](https://tex.z-dn.net/?f=%5Csqrt%7B%28%5Csqrt%7B3%7D%29%5E2%2B1%5E2%20%7D)
=
=
= 2
arg(
+ i) =
(
) = ![\frac{\pi }{6}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Cpi%20%7D%7B6%7D)
Thus
(
+ i)³
= 2³ [ cos(3 ×
) + isin( 3 ×
) ]
= 8 [ cos(
) + isin(
) ]
Answer:
x=![\frac{y2 }{9}](https://tex.z-dn.net/?f=%5Cfrac%7By2%20%7D%7B9%7D)
Step-by-step explanation:
2nd step: ![3\sqrt{x}=y](https://tex.z-dn.net/?f=3%5Csqrt%7Bx%7D%3Dy)
third step: ![\frac{3\sqrt{x} }{3} = \frac{y}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B3%5Csqrt%7Bx%7D%20%7D%7B3%7D%20%3D%20%5Cfrac%7By%7D%7B3%7D)
fourth step: ![\sqrt{x} =\frac{y}{3}](https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D%20%3D%5Cfrac%7By%7D%7B3%7D)
answer: x=![\frac{y2 }{9}](https://tex.z-dn.net/?f=%5Cfrac%7By2%20%7D%7B9%7D)