andrew123124 andrew123124

16-08-2020
Mathematics

contestada

The area of a compact disc is 78.53 square centimeters. What is the radius of the disc? Use pi = 3.14

Respuesta :

16-08-2020

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

Answer Link

Otras preguntas

What is the relationship between the 7 Step New Product Development Process and the PLC? How are these two concepts similar and different?

Meg won $100,000 on a game show, but she won't receive it for five years. Instead, the game show will deposit some money into an account paying 4% compounded da

This exercise uses the radioactive decay model. The half-life of strontium-90 is 29 years. How long (in yr) will it take a 30-milligram sample to decay to a mas

Voltage (V) = 10 V and R1 = 10 ohms and R2 = 5 ohms. How much current is going through the battery?

Most americans belived in manifest destiny a. Trueb. False

Write sentences describing type I and type || errors (in context of the claim) for a hypothesis test of the claim below. A researcher claims that the proportio

Kroger has a telephone number and web address printed on its receipt. If a Kroger customer fills out a customer satisfaction questionnaire by phone or online, t

Through joint ventures, firms can directly acquire the assets and competencies of other firms.a) Trueb) False

All of the processes involved in cellular respiration produce ATP. Which of the following processes produces the most ATP?A. GlycolysisB. Citric acid cycle (Kre

You are studying muscle cells in a dish. In one dish you find that when you add Ca ions and ATP, the muscle is contracted. What happens to the muscle in another