Answer:
16.5 inches
Step-by-step explanation:
Use the Pythagorean Theorem
a² + b² = c²
a² + 13² = 21²
a² + 169 = 441
Subtract 169 from both sides
a² = 272
Take the square root of both sides
a = 16.4924225025
Rounded
a = 16.5 inches
1.5 times 10 to the -8th power
Remove 10 quarts from blue
5 parts blue 3 parts yellow
5 parts blue 3 parts yellow
5 parts blue 3 parts yellos
total: 15 parts blue
9 parts yellow
remove the remaining 10 parts blue, since you do not have any more yellow
C should be the correct answer
Direct variation is is when the x and y a direct relation
without constants added or subtracted
With being times by each other
so the only one that meets the definite is the first one
y = 0.5x means y is equal to half of x. So you know that every y is directly related to half of x