// Plug x into the equation
5(0.3)+2y=20
1.5+2y=20
// Subtract 1.5 from each side
2y=18.5
//Divide each side by 2
y=9.25 (C)
The correct answer is
The explicit formula is of the form
,
where a₁ is the first term and r is the common ratio. Comparing this to our explicit form, we see that r = -4 and a₁ = 7.
The recursive formula is of the form
; using r=-4 gives us
Answer:
Width=13 Length=25
Step-by-step explanation:
The total perimeter of the field is 76 feet.
Lets say that is length is X and the width is Y.
The equation would be:
2Y+2(12+Y)=76
First solve for the parenthesis.
2Y+24+2Y=76
76-24=52
52=4y
y=13
To check your answer, 13 times 2 (26) plus 25 times 2 (50)= 76 so we know this is correct.
Answer:
Step-by-step explanation:
Recall the vertex form of a quadratic equation:
Where (h,k) is the vertex.
We are told that the vertex is (0,0). Therefore:
Simplify:
So, to finish the equation, we need to find a.
We know that a point is (2,1). Thus, substitute 1 for f(x) and 2 for x:
Square:
Divide both sides by 4:
So, our a value is 1/4.
And we can thus complete our equation:
And we are done :)
Answer:
2.5, 16,3,32
Step-by-step explanation: