smithfatima363 smithfatima363

30-03-2020
Mathematics

contestada

The area of a circle is 49 pi m2 what is the radius?

Respuesta :

30-03-2020

So area is equal to pi(r)^2. Plug the number into A and solve for r

49(pi)=pi)(r)^2

Divide out the pi and you get r^2=49

Find the square root of 49 which would give you +- 7. It’s important to remember 7 is both positive and negative

Answer Link

Otras preguntas

explain the types of human resources

The dehydration of a secondary alcohol, like cyclohexanol, is a mechanism that occurs Choose... . First, the alcohol is protonated to Choose... , creating

Because of ethical issues concerning abortion and other reproductive matters, many states have laws that Question 7 options: prohibit the refusal of legal medic

Why do we shiver when it is cold? A. It is the brain stimulating the person to move to a warmer location. B. It is an involuntary reaction that does not actuall

¿Me trae la _______, por favor? A. quiero B. caliente C. cuenta

Characteristics of budgets include: (Check all that apply.) Multiple select question. a focus on the past. typically span a month, quarter or one year. expresse

If anyone knows answer with steps that will be greatly appreciated :)

2.5 cm in the ratio of 1:500000

michael is making a square pyramid out of paper for a school project .he cuts a piece of paper with the dimensions shown to make the pyramid .what is the approx

10. Explain the principle of electric motor. Write its uses.