What is tge total surface area of a solid sphere of diameter 14cm

Mathematics

1 answer:

Alborosie3 years ago

7 0

The surface area of a sphere of radius r is A = 4π*r^3.

Since the radius in this case is 7 cm (half the 14 cm diameter), the area of this sphere is

A = 4π(7 cm)^2, or 196π cm^2.

You might be interested in

Yo, i really need help with this question

jok3333 [9.3K]

Answer:

Second graphic from the top

Step-by-step explanation:

Formula for g(x) is g(x) = (1/2) · x∧2

when we replace x= 10 in the formula we get

g(10) = (1/2) · 10∧2 = (1/2) · 100 = 50

God with you!!!

8 0

3 years ago

Can someone help me please? i'm not sure if 4 is right and i don't understand how to do 3

PtichkaEL [24]

3 Is B. The formula for finding the area of a circle is A= r(to the second power) times Pi. The radius is 6, so you must do 6 to the second power which is 6 times 6. That is 36. Your answer will be 36 pi.

3 0

3 years ago

A random telephone survey of 1021 adults (aged 18 and older) was conducted by Opinion Research Corporation on behalf of Complete

Wewaii [24]

Answer:

a. See attachment below

b. 613 people

c. Categorical

Step-by-step explanation:

a. View attachment below

Given

Total Number of People Surveyed = 1021

X tax return by professional / Number of People Surveyed = 60%

X tax /1021 = 0.6

X tax = 0.6 * 1021

X tax = 612.6

X tax = 613------ Approximated

So, the number of people used an accountant or professional tax preparer are 613.

The data for preparing a tax return will be considered as categorical as the methods for a person to file his/her tax returns are categorized into four which are:

1.Electronically

2.Manual preparation

3.Online tax service

4.Use of software tax program