Answer:

Step-by-step explanation:
Explicit formula is used to represent all the terms of the geometric sequence using a single formula.

Here, a is the first term.
r is the common ratio.
r = second term ÷ first term
4, 8,16,32,64,.....
a = 4
r = 8 ÷4 = 2



Answer:
x= 1/2 and x= -3
Step-by-step explanation:
Let's solve your equation step-by-step.
2x2+5x−3=0
Step 1: Factor left side of equation.
(2x−1)(x+3)=0
Step 2: Set factors equal to 0.
2x−1=0 or x+3=0
x=
1
2
or x=−3
Answer:
3 > x
x=2
because 3 is larger than 2
Step-by-step explanation:
Answer:
Step-by-step explanation:
f6^-1(x)=-x/5+7/5
We know that
<span>4 1/2----------> (4*2+1)/2--------> 9/2
(2/3)*(9/2)------> 18/6--------->3 yd (</span><span>this is what Trisha has )</span>
<span>if she has (2/3) she only needs (1/3)
</span><span>
[</span>the minimum amount of fabric she must buy]=(9/2)*(1/3)=1.5 yd
the answer is
the minimum amount of fabric she must buy is 1.5 yd