Answer:
The scale of the model is 1 in.:15 ft.
Step-by-step explanation:
In order to find this, first express the terms that you know.
3 in.:45 ft.
Now simplify by dividing both by the greatest common factor, which in this case is 3.
1 in.:15ft.
Gradient=rise/run=y2-y1/x2-x1
= 7-3(4)/-4--4(0)
As you can't divide by zero the line's equation is x=-4 so it doesn't have a gradient as such. However, a parallel line would be the y-axis
Answer:
Option C is the correct answer.
C. 5•(-20)
Step-by-step explanation:
We are told that the insurance payment for the car follows a certain pattern that can be represented through an expression. The payment is decreasing by $20 every year. As we don't know the total payment amount per period, so we cannot calculate how much is paid per period/year for insurance but we can calculate the rate at which this payment is decreasing.
Change in payment = t * (-20)
The above expressions can be used to calculate the amount of change in payment i payment is decreasing by a constant $20 every year, after t years.
So, if we want to calculate the change in payment after say 5 years, we can replace t with 5 in the equation and calculate the change,
Change in payment = 5 * (-20)
Change in payment = - $100
Answer:
y=5x+1
Step-by-step explanation:
If you look closely at each side, you will see that the x increases by one and the y increases by five.
To get to zero (0) from one (1), you need to substract one.
Every time one is subtracted for x, 5 is subtracted from y.
6-5=1
<u>Hope this helps :-)</u>
Answer:
25(a-2)(a+2)
Step-by-step explanation:
25a^2 -100
We can factor out 25
25(a^2 -4)
a^2 -4 is the difference of squares a^2-b^2= (a-b)(a+b)
where a =a and b=2
a^2 -4 = (a-2)(a+2)
25a^2 -100 = 25(a-2)(a+2)
