The area of the circle by definition is given by:
For f (r) = 154:
Clearing r we have:
For f (r) = 616:
Clearing r we have:
Answer:
a reasonable domain for f (r) is:
7 <r <14
Answer:
What's your question?
Step-by-step explanation:
Answer: 34 years old
Let x be the age of Joseph and y the age of Angeles
x-y = 5
x + y = 63
Adding the equations
2x = 5+63=68
x = 34
Substitute x in the first eq.
Angeles is 29 years old
In years she will be 34
Answer:
for number 4 the answer is 32 in (please read below)
Step-by-step explanation:
I will do one of them for now... how about number 4.
Similar triangles means we are going to setup a proportion:
Small triangle Big Triangle
Corresponding 12 15
Corresponding x 40
So the proportion is 12/x=15/40
cross multiply
12(40)=15(x)
Divide both sides by 15
giving x=12(40)/15=32
Try number 1... And I will check it for you (just post as a new question-I will be looking for it)
20 me dió a 20 ..........