20 x 42= 840
So the area would be 840 mm^2.
Answer:
<h2>C= 400P+ 600</h2>
Step-by-step explanation:
In this problem, we are to model the equation for the total cost of producing a phone
Given that the fixed cost is $600
Also, the total cost of producing 4 phones in a day is $1600
hence the cost of producing 1 phone would be 1600/4= $400
the equation for producing p phones would be
C= 400P+ 600
This equation is the same as the equation of a straight line Y=mx+c
with C=y
400= m= gradient
P=x, the dependent variable
600= c the constant term.
Answer: The first set of expenses is 69.47% of second set of expenses.
Step-by-step explanation:
Since we have given that
Amount spend by Maria on lottery tickets every week = $21
Amount spend by Maria on food every month = $131
so, Amount spend by Maria on lottery in a year would be

Amount spend by Maria on food in a year would be

So, the first set of expenses is what % of the second set of expenses.
So, the required percentage would be

Hence, the first set of expenses is 69.47% of second set of expenses.
Answer:
10
Step-by-step explanation:
Here, we want to find the value of ;
h circle h(10)
This mean we are to put h in h, the find the function of 10
we have this as;
6-(6-x)
= 6-6 + x = x
Now, replace the x by 10; so we have h circle h(10)
Answer:
8 inches
Step-by-step explanation:
Use formula

for the area of the rectangle.
Given

then
