Answer:
The value of f(9) is equal to 498.
Step-by-step explanation:
Given that,
f(x) = 6x²+12
We need to find the value of x(9).
Put x = 9 in the given function.
f(9) = 6(9)²+12
f(9) = 498
So, the value of f(9) is equal to 498.
-3b + 4 for b = -2.
=-3(-2)+4
=6+4
=10
Answer:
The width of the smaller rectangle is 5 centimeters
Step-by-step explanation:
step 1
<em>Find the scale factor</em>
we know that
If two figures are similar, then the ratio of its areas is equal to the scale factor squared
Let
z ----> the scale factor
x ----> the area of the smaller rectangle
y ----> the area of the larger rectangle
we have
substitute
square root both sides
step 2
Find the width of the larger rectangle
we know that the area is equal to
we have
substitute
step 3
Find the width of the smaller rectangle
To find out the width of the smaller rectangle, multiply the width of the larger rectangle by the scale factor
so
Answer:
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