Answer: Part A : c = n.p
Part B = 366 moviegoers
Step-by-step explanation: In part A, to predict the number of moviegoers, we have to find the <u>proportion</u> of the sample that does the activity, which will called <u>p</u>. Since <u>p</u> is a percentage, to determine how many moviegoers are seeing a comedy, you multiply it by the sample size, <u>n</u>.
Therefore: c = n.p
For part B, based on the the sample:
p = 
= 0.24
The total population is given: 1,525
c = 0.24.1,525
c = 366
Based on the sample, <u>366</u> <u>people</u> are seeing a comedy.
Answer: x=6
Step-by-step explanation:
Do 4x+19x and that is 23x
And then do 12x+5x and that is 17x
Now the equation is 23x=36+17x
Now do 23x-17x and you get 6x
Now the equation is 6x=36
And then divide x by 6 and 36 by 6 and you get x=6
$2,949.12
Source : High level math classes
Answer:
39cm²
Step-by-step explanation:
6*5=30
6*3=18
18/2=9
30+9=39cm²
I'm assuming the grid is 1*1cm²
First we assume that this is equal to zero
so what we notice is this is a sum of 2 perfect cube
recall that
a^3+b^3=(a+b)(a^2-ab+b^2)
125x^3+343=
(5x)³+(7)³=(5x+7)(25x²-35x+49)
now solve the part in second parenthasees because we can see that the first parenthasees (5x+7) is going to have a real root
remember quadratic formula
for ax^2+bx+c=0
x=
a=25
b=-35
c=49
x=
x=
x=
x=
x=
x=
x=
the comlex roots are
x=
and
