Here, all we need to do is subtract.
5 is the total.
5 - 2.25 = 2.75
2.75 - 1.6 = 1.15
She has 1.15 yards of ribbon left.
Answer: y=1/2x+4
Step-by-step explanation:
1. y-y1=m(x-x1)
2.y-5=1/2(x-2)
3. solve
4. y-5=1/2x-1
5. add 5 to both sides to isolate the variable
6. this gives you y=1/2x+4
Given the table:
x f(x)
2 6
7 3
9 5
To determine the coordinate given in the table, we have the following:
f(2) = 6
f(7) = 3
f(9) = 5
From the answer choices, the only coordinate given is:
f(5) = 9
ANSWER:
f(9) = 5
Answer: 
Step-by-step explanation:
By the negative exponent rule, you have that:
By the exponents properties, you know that:
Therefore, you can rewrite the left side of the equation has following:
Descompose 32 and 8 into its prime factors:
Rewrite:
Then:
As the base are equal, then:
Solve for x:
Answer:
Choice D
y = 3(2/3)^x
Step-by-step explanation:
a) y = 2(3/2)^x = 3^x (pretty close)
b) y = (2/3)^x (wrong, coming from the wrong side)
c) y = 2(3)^x = 6^x (too close to y line)
d) y = 3(2/3)^x = 2^x (looks right)
