Answer:
Option C, 14/21=9/21 is the proportion.
Step-by-step explanation:
Given:
a.5/7 = 10/12
b.9/15 = 12/18
c.4/6 = 8/12
d.14/21 = 9/12
We have to find the proportions.
In proportion two ratios are equal, as it has an equality sign in between so both side must be of same ratio in its simplest form.
Let's work with option C
⇒ 
To find the simplest form we have to divide the numerator and denominator with same digit (or its factor).
Simplest form of
=
,
= 
Simplest form of
= 
Both sides in option C have equal ratios of 2/3.
So 4/6=8/12 is in proportion.
The next number in the linear pattern would be 18
Answer:
we need to see the prism to understand and answer, is there a picture?
Step-by-step explanation:
Rational roots theorem states that any rational root will be a factor of the constant over a factor of the leading coefficient.
The given equation is: <span>f(x) = 3x^4 + x^3 - 13x^2 - 2x + 9. </span>In this case, it is a factor of 9 over a factor of 3.
<span>Factors of 9: ±1, ±3, ±9 </span>
<span>Factors of 3: ±1, ±3 </span>
So possible rational roots are: ±1, ±3, ±9, ±1/3