bubSaramgirlissjan bubSaramgirlissjan

29-04-2016
Mathematics

contestada

Find the diameter of a circle with an area of 804.2 square centimeters. (Use 3.14 for )
Select one:
a. 32 cm
b. 8 cm
c. 48 cm
d. 64 cm

Respuesta :

apologiabiology apologiabiology

29-04-2016

A=pir^2
pi=3.14
2r=d
804.2=pir^2
804.2=3.14r^2
divide by 3.14
256.1146...=r^2
sqrt both sides
16=r
2r=d
2*16=d=32

answer is A

Answer Link

Otras preguntas

If the scale factor is 5/2 with a center of dilation at (0, 0), fill in the blanks for the missing ordered pairs.

Malik randomly picked two different numbers from 1 to 9. The first one was odd. What is the probability that Malik picked a second odd number given that the fir

plss help i'll give brainliest pllssss be fast

Q1.Find the sum of integers: -72,237,84,72,-184,-37Q2. Fill in the blanks : a) (-1) x ------- = -33 b) 7 x --------- = - 42 c) (-3) x --

Help me what’s for life or death

Find the value of x and y. Identify the type of angle pair!!

Write the equation of the quadratic whose Vertex is at ( −4,−5) and passes through the point (−3, −7)

I. got a dig bick 2. You that read wrong 3. You read that wrong too 4. You checked 5. You smiled 7. You are wondering why you're still this reading this 8. You

Seth estimates that he will need about $9,100 for the first year of tuition for college. His grandparents will contribute 70% of the tuition expenses, and seth

What were official "memorizers" in the Inca empire required to do and why?