131.88 or jus do radius times 2 so 21+ 21 = 42.
42 x pi(3.14) = 131.88
Step-by-step explanation:
A²+B²=C²
A²+4²=5²
A²+16=25
-16 -16
A²=9
√A=√9
A=3
Answer:
324 calories
Step-by-step explanation:
A box of cereal states that there are 81 cal in a 3/4 cup serving what is the unit rate for calories per cup how many calories are there in 3 cups of cereal
The unit rate for calories per cup = calories per cup
3/4 cup serving = 81 calories
3 cups of cereal = x calories
We Cross Multiply
3/4 × x = 81 × 3
x = (81 × 3) ÷ 3/4
x = 243 × 4/3
x = 324 calories per cup
There are 324 calories in 3 cups of cereal