Answer:
R = 40t + 20
Step-by-step explanation:
We need to use the equation y = mx + b to solve this because it's linear.
"m" is the slope, or the rate. Here, we know that the population increases by 40 rabbits per month, which means m = 40.
"b" usually means that fixed, initial amount. Here, we know that the population begins at 20 rabbits, which means b = 20.
Plug these in:
R = mt + b
R = 40t + 20
The |*| symbols take away the negative value of a number. So |-3| is just “3”. I can explain more if needed :)
Answer:
<h3> the first number is 5</h3><h3> the first second is 6</h3><h3> the first number is 1</h3>
Step-by-step explanation:
x - first number
2x - twice the first number
twice the first number exceeds the second number by 4 so:
2x-4 -the second number
y - the third number
the second number is equal to the sum of the first and third numbers:
2x-4 = x + y
x + y = 2x - 4
-x -x
y = x - 4 - the third number
the sum of three numbers:
x + 2x-4 + x-4 = 4x - 8
The sum of three numbers is 12 so:
4x - 8 = 12
+8 +8
4x = 20
÷4 ÷4
x = 5
2x-4 = 2•5 - 4 = 6
x-4 = 5 - 4 = 1
Check:
5+1 = 6
2•5 = 10, 10-4 = 6
There is 5/9 of a cup serving in 4/9 of a cup of yogurt.
Hope that helped =)
Answer:
c. y=x^2+2x-7
Step-by-step explanation:
A linear function has the highest power of 1 (x)
A quadratic has the highest power of 2 (x^2)
A cubic has the highest power of 3 ( x^2)
a. y=x+9 linear
b. y=2x-15 linear
c. y=x^2+2x-7 quadratic
d. y=x^3-x^2 cubic