Do you know your trig ratios?
Answer:
r = 5 cm
Step-by-step explanation:
A = πr²
78.53 = (3.14)r²
divide by 3.14
25 = r²
r = ±5
r = 5
I think it might be 20 I don't really know that one
Answer: 1.495
Explanation: The first digit after the decimal is the tenths place. After that it's the hundredths then the thousandths. If the digit after the thousandths place is 5 or higher then you would round the thousandths place up. Considering it's not higher then it would stay the same.
Answer:
9 D and 10 B
Step-by-step explanation:
The conditional is what is next to IF and the hypothesis is what you expect in this case you expect it to be a whole number and a integer
