The radius of a sphere measures 2 units. What is its surface area? S = 4πr2 S = 4π(2)2 Surface area=

Answers

Answer 1

Answer:

16π or 50.3 units

Step-by-step explanation:

the formula for the surface area of a sphere (as you mentioned) is:

4πr²

So if we plug in the given value (2) for r:

4π×2²=16π

Answer 2

Answer:

16

Step-by-step explanation:

I got it right


Related Questions

Subtract (5u + 6v) from (8u + 10v)

Answers

Answer:

-3u-4v

Step-by-step explanation:

5u+6v-(8u+10v)

=5u+6v+-1(8u+10v)

=5u+6v+-1(8u)+-1(10v)

=5u+6v+-8u+-10v

(combine like terms)

=5u+6v+-8u+-10v

=(5u+-8u)+(6v+-10v)

=-3u-4v

hope this helps

can you mark me brainliest pls

The value of the subtraction will be equal to -3u-4v.

What is an expression?

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that the two expressions are (5u + 6v) and (8u + 10v). The subtraction will be calculated as,

5u+6v-(8u+10v)

S =5u+6v+-1(8u+10v)

S =5u+6v+-1(8u)+-1(10v)

S =5u+6v+-8u+-10v

(combine like terms)

S =5u+6v+-8u+-10v

S =(5u+-8u)+(6v+-10v)

S =-3u-4v

Therefore, the value of the subtraction will be equal to -3u-4v.

To know more about an expression follow

https://brainly.com/question/25207082

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Find the lateral area of the following
cone. Leave your answer in terms of .
12 cm
5 cm
LA = [ ? ]7 cm2

Answers

The lateral surface area of the cone will be 65π square cm.

What is the lateral surface area of a cone?

Let d be the diameter of the base circle, l be the slant height, and h be the height of the cone.

Then the lateral surface area of the cone will be

LSA = πrl

Then the slant height is given as

l² = r² + h²

l² = 5² + 12²

l² = 25 + 144

l² = 169

 l = 13 cm

Then the lateral surface area will be

LSA = π × 5 × 13

LSA = 65π cm²

More about the lateral surface area of a cone link is given below.

https://brainly.com/question/27492847

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please answer as soon as possible

Answers

Answer:

x>5

Step-by-step explanation:

hope this helps you!

Hopes this helps:

Answer: x > -5

Please mark as brainlist.


Solve the system using
substitution
Y = 2X – 1
4x + 3y = 7

Answers

Answer:

1,1

Step-by-step explanation:

See steps below:) I could only show half of the steps. but you can use the app photo math. It will show you all the steps.

Match each equation to its description
A.Circle centered at (0,-4) with radius of 3
1.(x-1)^2 + y^2=9
2.x^2+(y+4)^2=9
3. (x-1) +( y - 4)^2=3
4.(x - 1)^2+(y - 4)^2=9
5.(x - 1)^2 + (y + 4)^2=3
Which is the correct answer
A.1
B.2
C.3
D.4
E.5

Answers

Answer:

[tex]\boxed {\boxed {\sf B. \ 2: x^2+(y+4)^2=9}}}[/tex]

Step-by-step explanation:

The equation for a circle is:

[tex](x-h)^2+(y-k)^2=r^2[/tex]

Where (h, k) is the center and r is the radius.

We know that the center of the circle is (0, -4) and the radius is 3. Therefore:

h= 0 y= -4 r=3

Substitute the values into the formula.

[tex](x-0)^2+(y--4)^2=(3)^2[/tex]

Solve the first parentheses.

(x-0)² = (x)²= x²

[tex]x^2+(y--4)^2=(3)^2[/tex]

Solve the next parentheses.

(y--4)² = (y+4)²

[tex]x^2+(y+4)^2=(3)^2[/tex]

Solve the exponent.

(3)²= 3*3=9

[tex]x^2+(y+4)^2=9[/tex]

This is the finished equation, which corresponds with number 2. Choice B (2): x²+(y+4)²= 9 is correct.

If 2/3x - 1 = 4, then x =

Answers

Answer:

7.5

Step-by-step explanation:

2/3 x 7.5 = 5

5 - 1 = 4

Can someone plz help me with this one problem plz!!!

Answers

answer is d or c because when u find Mean u add all numbers the. divide and median is middle number

Step-by-step explanation:

mean us 7.5 median is 6 asssss

ASAP

- How did you get the answer
- Will mark brianist

Answers

Answer:

c

Step-by-step explanation:

all companys are under 300k and applys to all 5

Bob wants to buy a pack of pens that costs $4.95. He has 2 dollar bills, 5 quarters, and two dimes. How much more money does he need?

Answers

Answer:

Bob needs $1.50 to buy the pack of pens

#17: Jackson would like to determine which elective is the favorite among
his peers. He surveys every 20th person to walk through the front door of
school and finds that 27 out of 40 students like P.E. the best. If there are
800 students at the school, how many would you expect to say P.E.? *

Answers

Answer:

dic

Step-by-step explanation:

you suck it then eat it

What is an expression that simplifies to x to the 24 power

Answers

Answer:

x⁹ * x⁸ * x⁷

Step-by-step explanation:

when numers with the same base are multiplied the exponents are added

x⁹ * x⁸ * x⁷

Anybody know the answer to this? I’ve been having a hard time

Answers

Answer: 2.39 inches (rounded)

Step-by-step explanation:

1.) Divide circumference (15) by 3.14 to get the diameter (~4.78, or 4.77707006...)

2.) Divide diameter by 2 for the radius (~2.39, or 2.38853503...)

characteristics of 0.00753​

Answers

Answer:

7.5 is the answer. You have to move the decimal 2 places to the right.

Step-by-step explanation:

otherwise i.d.k

¿Qué es la condición física?
A) Conjunto de capacidades físicas, que se pueden mejorar mediante el entrenamiento.
B) Salud y ejercicio.
C) Fuerza, resistencia, velocidad y flexibilidad.

Answers

Answer:

A

Step-by-step explanation:

please help me its 3 am and i am so tired that i have no energy left and im seriously trying to get done with 8 assignments and then i have to get ready for work by 6, thank you so much <3 NO LINKS OR FILES OR I WILL REPORT

Answers

Answer:

4 (2x + 3)^2 this is the answer I guess

Answer:

try 6

Step-by-step explanation:

The more frequently heroin is used, the greater the risk of permanent damage of addiction or dependence.


True

False

Answers

Answer...... True

Explanation:
heroin is a addictive substance and the more you take it the greater risk of developing short and long term effects
True because the effects are long term with heroin

On a number line 8.63 would be located... choose all answers that make the statement true

A) to the right of 8.66
B) between 8 and 9
C) between 8.62 and 8.64
D) to the left of 8.61

Answers

Answer:

b and c

Step-by-step explanation:

because they are correct

evauate the problem 5y=30

Answers

Answer:

y = 6

Step-by-step explanation:

5y = 30

5y ÷ 5 = 30 ÷ 5

y = 6

Y=6
5x6=30

Hope this helped

I've Been struggling for a while can someone please help me? Thanks.

Answers

I’m pretty sure it’s the last one.

please answer below :)

Answers

Answer:

D, probably

Step-by-step explanation:

If we expect the pie chart to be angle-accurate, then Salary should be 90% of the full pie, so 90% of 360°

90% * 360° = 0.9 * 360° = 324°

x + 23
5x + 13
please help

Answers

Answer:

x = 2.5 or 5/2.

Step-by-step explanation:

They're congruent angle, so set them equal to each other

5x + 13 = x + 23

Solve for x:

4x = 10

x = 10/4 = 5/2 = 2.5

Camden needs to lease out a music studio to record his new album. The studio charges an initial studio-use fee plus an hourly fee for each hour in the studio. The studio charges $50 per hour of use and the total cost charged for 5 hours is $700. Write an equation for the function P ( t ) , P(t), representing the amount of money Camden would have to pay to use the studio for t t hours.

Answers

Answer: [tex]P(t)=450+50t[/tex]

Step-by-step explanation:

Given

Studio charge $50 per hour and fixed charge for initial use

For 5 hours, it charges $700

Suppose x is the fixed charge

[tex]\therefore 700=x+50\times 5\\\Rightarrow x=700-250\\\Rightarrow x=\$450[/tex]

For t hours, studio charges

[tex]\Rightarrow P(t)=450+50t[/tex]

In ΔHIJ,
m

H
=
(
4
x
+
1
)

m∠H=(4x+1)

,
m

I
=
(
2
x

6
)

m∠I=(2x−6)

, and
m

J
=
(
6
x

7
)

m∠J=(6x−7)

. Find
m

J
.
m∠J.

Answers

Answer:

89 degrees

Step-by-step explanation:

Since these angles make up a triangle, we know that the total of these angles will make 180 degrees. So, we need to set the equations up appropriately, and solve for x:

[tex]180=(4x+1)+(2x-6)+(6x-7)\\180=12x-12\\192=12x\\x=16\\[/tex]

Then, you plug 16 back into the equation for angle J, and simplify:

[tex](6(16)-7)\\(96-7)\\(89)[/tex]

Therefore, the answer is 89 degrees.

Anyoneee pls I need help

Answers

Answer:

3

Step-by-step explanation:

As in the first set of numbers

4,5,2 are successes.

but in the next set of numbers

5 is right before a fail.

but then straight passes after that

Someone help me out with this my grade are bad

Answers

Answer:

2 units tall by 1 unit wide

Step-by-step explanation:

On the given rectangle it tell you the conversion to m is 1 unit = 2 m.

The new figure that needs to be drawn has a conversion of 1 unit = 8m.

So, the fist thing we need to do is calculate the m on the width at the height of the original, which is 16 by 8.

looking at this we can now convert this measurement into our new conversion of 1 unit = 8 m. We can do this by dividing the height and width separately.

Ex:

Since 16 is divided by 8 two times so that gives us the answer of 2 units.

8 is divisible by 8 one time so that gives us the width of 1 unit

if this is confusing just think of it like: x=[tex]\frac{16}{8}[/tex] for the height or x = [tex]\frac{8}{8}[/tex] for the width.

4. A mysterious card playing squirrel offers you the opportunity to join in
his game. The rules are:
To play you must pay him $2.
• If you pick a spade from a shuffled pack, you win $9
Find the expected value you win (or lose) per game.
.

Answers

Answer:

is there a picture along with this??

Hot chocolate or Apple cider
Blanket or slippers
Car or job
Cell phone or tablet
Job or college
School or fun
Day party or pool party
Birthday party or cook out
Wendys or McDonald's
In-n-Out or cook out
Wawa or sheets

Answers

apple cider

blanket

job

cell phone

job

fun

pool party

birthday party

McDonald's

cook out

N/A

The perimeter of a rectangle is 35.6 feet. The length of the rectangle is 12 feet.
What is the width of the rectangle? *
1. 5.8 feet
2. 23.8 feet
3. 11.8 feet
4. 23.6 feet
.

Answers

Answer:

The length is 2.4 1.2 times 2 to take away the both width sides minutes 2.4 from 7.2 you get 4.8 then divide by two because it’s a rectangle it has to length side and you get 2.4

so that is number 3

Step-by-step explanation:

ASAP!! HELP ME PLS
Don’t put your fake files here

Answers

D!
It includes the area of all sides.

A teacher would like to estimate the mean number of steps students take during the school day. To do so, she selects a random sample of 50 students and gives each one a pedometer at the beginning of the school day. They wear the pedometers all day and then return them to her at the end of the school day. From this, she computes the 98% confidence interval for the true mean number of steps students take during the school day to be 8,500 to 10,200. If the teacher had used a 90% confidence interval rather than a 98% confidence interval, what would happen to the width of the interval

Answers

Answer:

The answer is "It would decrease, but not necessarily by 8%".

Step-by-step explanation:

They know that width of the confidence level is proportional to a confidence level. As just a result, reducing the confidence level decreases the width of a normal distribution, but not with the amount of variance in the confidence level. As just a result, when a person teaches a 90% standard deviation rather than a 98 percent normal distribution, the width of the duration narrows.

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