16-05-2017
Mathematics

contestada

please help me is for my geometry

please help me is for my geometry class=

Respuesta :

16-05-2017

the formula for surface area is SA=4pi(radius)^2
This means that 4SA=4pi(2r)^2
because 2^2=4
so multiply the first ball's surface area by 4
the answer is c

Answer Link

Otras preguntas

hello, help needed. show work please. 55 points!! due today.

the setup below was used to investigate the reaction between metals and wateri.)identify solid X and state its purposeii.)write a chemical equation for the reac

Read each the sentence carefully. If a comma is needed, rewrite (type) the sentence and add the comma in the correct spot. If the sentence is correct, write cor

I really need help!!!

give me this same text but if it was a 7th grader Mount Rushmore is an impressive sculpture. Each year, millions of people visit the 60-foot-tall images of Amer

In the years after the Civil War, Southern whites, or became affiliated with the Republican Party. O carpetbaggers O radicals O scalawags

The side length of an equilateral triangle is x + 3. Write an expression for the perimeter of the triangle.

Which expression is equivalent to 206.230? O a. 2 x 100 + 6 x 10 + 2 x 1 + 3 < 1/10 O b. 2 x 100 + 6 x 1 + 2 x 1/10 + 3 < 1/100 O c. 2 × 10 + 6 x 1 + 2 x

What happened in American factories during World War II? A.Factories that produced ammunition were encouraged to hire Japanese Americans B.African were general

What type of line is PQ? A. angle bisector B. side bisector C. altitude D. median