Answer:
7
Step-by-step explanation:
First of all, let’s find CB.
sin(45°) = CB : 6sqrt(2)
CB = 6
Now we can find CD
cos(60°) = x : 6
x = 3
Answer:
46/117
Step-by-step explanation:
Answer: -5( x - 7) (x + 4)
Step-by-step explanation:
Factor the polynomial.
Answer:
Prat 9) 
Part 10) 
Part 11) 
Part 12) 
Step-by-step explanation:
we know that
If two figures are similar, then the ratio of its areas is equal to the scale factor squared
Let
SF-----> the scale factor
a----> area of the shaded figure
b----> area of the unshaded figure

Problem 9) we have


substitute in the formula


------> the scale factor
To find the value of x, multiply the length of the unshaded figure by the scale factor

Problem 10) we have


substitute in the formula


------> the scale factor
To find the value of x, multiply the length of the unshaded figure by the scale factor

Problem 11) we have


substitute in the formula


------> the scale factor
To find the value of x, multiply the length of the unshaded figure by the scale factor

Problem 12) we have


substitute in the formula


------> the scale factor
To find the value of x, divide the length of the shaded figure by the scale factor
