Answer:
3×20= 60.
Step-by-step explanation:
Given:
A researcher wants to run a 2 x 3 mixed factorial design.
1st factor is the subject within
2nd factor is the subject between
Now to calculate how many participants will he need in total
(greater of 2,3)×20
that is
=3×20= 60.
16 because two negatives numbers equal a possitive so 16
So the length is 4*28=112mm
The width would be calculated like this:
you draw an equilateral triangle in the middle with sides or 2r(56mm). The based on pythagorean theorem u know that
h=rad(56^2-28^2)=48.497
28+28+h=104.497
The area would be S=l*w which is 11703.7113mm
To find the answer, we can first find the age of Rolando in four year:
17+4
=21
We can then proceed to find the current age of Marisa,which is 3/2 of Rolando’s age calculated above:
Let Marisa’s age be y.
3/2 y =21
y = 21 × 2/3
y = 42/3
y = 14
Therefore Marisa is currently 14 years old.
In three years, Marisa would be:
14+3
=17
Therefore, she will be 17 years old.
Hope it helps!