3. The surface area of the sphere is 30 m2. Find the radius of the sphere.

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

The formula for the surface area is A = 4πr². This formula can be solved for r² and then the result solved for the radius, r:

r² = -------- The radius of the sphere is as follows:

4π

√(30 m²)

-------------- meters

2√π

Related Questions

On a trip, the fare was 50¢ for each adult and 25¢ for each child. If 30 passengers paid $12.25, how many adults and children went?Is this the right way to set up the equation? 50x + 25(30 - x) = 1225
The diameter of your bicycle wheel is 20 inches. How far will you move in one turn of your wheel?
What is the rate of change for this graph
What is x?35=5(x+9)
Which of the following shows a number in fraction form? A. 3 B. 3.7 C. 3 ∕7 D. √2

Select two numbers which have an absolute value that is greater then the absolute value of 4-1/4

Answers

Answer:

A.) -5. E.) 6 hope I could help

Simplify. your answer should contain only positive exponents y^2x^3y^2

Answers

Answer:

x^2y^4.

Step-by-step explanation:

y^2x^3y^2

= x^2y^2y^2

= x^2y^(2+2)

= x^2y^4.

Having troubles with inequalities.. 3.8x + 14.5 < 32

Answers

$3,8x + 14.5 < 32\n 3,8x<32-14,5\n 3,8x<17,5\ /:3,8\n x<(17,5)/(3,8)\n \n 17\frac12 :3\frac45=(35)/(2) :\frac{19}5=\frac{35}2\cdot \frac5{19}\n=(175)/(38)=4(23)/(28)\n x<4(23)/(28)\n x\in (-\infty;4(23)/(28))$

Answer: x < 4.6 rounded to the tenths

Step-by-step explanation:

3.8x + 14.5 < 32

subtract 14.5 on both sides.

3.8x < 17.5

divide by 3.8 on both sides.

x < 4.60526316

The are of a square is 36w^2 +60w + 25. what the side length of the square?

Answers

I hope this helps you

Quadratic Equations: ax^2+bx+c=0Factor first mult. A and C then use the factors from the answer to add to B
1.) 2b^2+10b+12
2.) 3g^2+8g+4
3.) 4x^2+4x-3
4.) 8b^2-5b-10
5.) 6m^2+7m-3
6.) 10d^2+17d-20
Please Answer ASAP Show ALL WORK

Answers

quadratic equaiton is
x= $(-b- √(b^2-4ac) )/(2a)$ or $(-b+ √(b^2-4ac) )/(2a)$

just subsitute and simplify
I will only do one in detail since it takes some time

so first one2b^2+10b+12
a=2
b=10
c=12
subsitute
x= $(-10- √(10^2-4(2)(12)) )/(2(2))$ or
$(-10+ √(10^2-4(2)(12)) )/(2(2))$
pemdas

$(-10- √(10^2-4(2)(12)) )/(2(2))$
do parenthasees or inside exponents
(10^2-4(2)(12) =(100-96)=4
square root of 4=2
(-10-2)/(2 times 2)=-12/4=-3
if -10+square root then
(-10+2)/(2 times 2)=-8/4=-2
answer is
b=-3 or -2

second one
answer is g=-2 or -2/3

3rd
x=-3/2 or 1/2

4th
b= $(5- √(345) )/(16)$ or
$(5+ √(345) )/(16)$

5th
m=-3/2 or 1/3

6th
d=-5/2 or 4/5

All students in Ridgewood Junior High School either get their lunch in the school cafeteria or brought it from home on Tuesday. 20% of students brought their lunch. 49 students brought their lunch. How many students in total are in Ridgewood Junior High School?