Mathematics High School

A=4ℼR2 solve for R
SHOW ALL STEPSSSSSSSSS

Answers

Answer 1

Answer:

[tex]R=\frac{1}{2} \sqrt{\frac{A}{\pi }}[/tex]

Step-by-step explanation:

To solve an equation for one of its value

Underline the variable you need to solve for itSeparate this variable on one side and other terms on the other sideMake its coefficient equal to 1

∵ A = 4πR²

→ Underline R

∴ A = 4πR²

→ Move 4π to the other side by dividing both sides by 4π

∵ [tex]\frac{A}{4\pi }=\frac{4\pi R^{2} }{4\pi }[/tex]

∴ [tex]\frac{A}{4\pi }=R^{2}[/tex]

→ To find R take √  for both sides

∴ [tex]\sqrt{\frac{A}{4\pi }}=\sqrt{R^{2} }[/tex]

→ You can simplify  [tex]\sqrt{\frac{1}{4}}[/tex] to [tex]\frac{1}{2}[/tex]

∴ [tex]\frac{1}{2} \sqrt{\frac{A}{\pi }}=R[/tex]

→ Switch the two sides

∴ [tex]R=\frac{1}{2} \sqrt{\frac{A}{\pi }}[/tex]

Related Questions

what's the value of x

Answers

X=3 hope this helped and you shlukd mark me brainliest

Please help me out on this.
Enter your answer and show all the steps that you use to solve this problem in the space provided.

Ingredient 8 servings

Dried split peas: 2 and 1/4 c.
Water: 2 qt
Chopped onion: 3/4 c.
Chopped celery: 1 c.
Ham shank: 2 lb.
The basic recipe for split pea soup serves 8 people. Find the amount of each ingredient needed to serve 32 people.

Answers

Answer:

Dried split peas: 9 cups

Water: 8 quarts

Chopped onion: 3 cups

Chopped celery: 4 cups

Ham shank: 8 pounds

Step-by-step explanation:

Since the basic recipe serves 8 people and you need to serve 32 people, you just multiply each ingredient by 4. (32÷8=4)

Dried split peas: 2 1/4 c.   x 4 = 9 cups

Water: 2 qt  x 4 = 8 quarts

Chopped onion: 3/4 c.  x 4 = 3 cups

Chopped celery: 1 c.   x 4 = 4 cups

Ham shank: 2 lb.  x 4 = 8 pounds

A beaker contains 0.5 liter of a solution. Jordan uses 0.08 of the solution for an experiment. How much of the solution does Jordan use?

Answers

Answer:

400 milliliters or 0.4 liters

Step-by-step explanation:

BRAINLIST if right please help

Answers

Answer:

The third one

Step-by-step explanation:

The answer would be number three .



Which letter represents (-2,3)?

Answers

Answer:

N represents (-2,3)

Step-by-step explanation:

x axis of N = -2

y axis of N = 3

Answer:

O B.  N

Step-by-step explanation:

the -2 meant go back 2 on the X while the 3 shows to go up on the Y axis

1) A TV is on sale for 20% off. If the sale price is $700, what is the original
Was the original price?

Answers

Answer:

140

Step-by-step explanation:

20% of 700

so 20/100 * 700

20*7

140

2. Which of the following is not a solution of 3x = 5y - 1?
A. (3,2)
B. (7,4)
C. (-1/3, 0)
D. (-2,-1)

Answers

Answer:

c d a suduududududhsjshsjsid

f − 23.99 = 18.76


A.

f = 42.66

B.

f = 41.66

C.

f = 42.75

HELP ASAP! Plz

Answers

Answer:

f= 42.75

Step-by-step explanation:

just smart

Answer:

c your welcome

Step-by-step explanation:

i have done this connexus

Find the opposite of 16.22

Answers

Answer:

-16.22

^THERE IS YOUR ANSWER^

Answer:

-16.22

Step-by-step explanation:  

I am sorry if this is wrong

How do i graph -7x-2y=-21???

Answers

Answer:

-7/2 is the slope. -10.5 is your starting point on the y-axis. You go from -10.5, up 7 and over to the left 2 times because it's negative.

Step-by-step explanation:

-7x-2y=-21

-2y=7x-21

y=-7/2x-21/2

y=-7/2x-10.5

Hope this helps!

You might want to simplify the equation first. Basically, we'll use y = ax+b instead.

[tex]-7x-2y=-21\\-2y=-21+7x\\y=\frac{-21}{-2}+\frac{7x}{-2} \\y=\frac{21}{2}-\frac{7x}{2}\\y=\frac{21-7x}{2}[/tex]

Should have been like this then you are able to graph.

To graph, you need to find the x-intercept and y-intercept.

(1) Find x-intercept, substitute y = 0

[tex]0=\frac{21-7x}{2} \\0=21-7x\\7x=21\\x=3[/tex]

Thus, the graph has a x-intercept at (3,0). For those who are wondering where does the fractional 2 go, just multiply the whole equation by 2 to get rid of the fraction.

(2) Find y-intercept, substitute x = 0

[tex]y=\frac{21-7x}{2}\\ y=\frac{21-0}{2}\\ y=\frac{21}{2} \\[/tex]

Also 21/2 = 10.5, Thus the graph passes y-axis at (0, 10.5)

Now plot the graph, make a line from x-intercept and y-intercept and you should get like this (Picture below.)

Round 8,499 to the nearest hundreds

Answers

Answer:

8,500

Step-by-step explanation:

Answer:

8,500

Step-by-step explanation:

What integers are less than -4​

Answers

Answer:

Integers less than -4, are -5 and to negative infinity of whole numbers

Step-by-step explanation:

Answer:

It is anything that is less then -4

Step-by-step explanation:

-5 >-4

Which algebraic expression is equivalent to the expression below?

9(5x - 5) + 7x
A.
38x + 45
B.
52x - 45
C.
38x - 45
D.
52x - 5

Answers

Answer:

[tex]\boxed {52x - 45}[/tex] (Choice B)

Step-by-step explanation:

Solve the following expression:

[tex]9(5x - 5) + 7x[/tex]

-Use Distributive Property:

[tex]9(5x - 5) + 7x[/tex]

[tex]45x - 45 + 7x[/tex]

-Combine like terms:

[tex]45x - 45 + 7x[/tex]

[tex]\boxed {52x - 45}[/tex]

33) AUVW ~ AQRS
22
159
U
W
26
?
59
R
13
S

Answers

Answer:

.22+59+26+w=180

107+w=180

w=180-107=81

second triangle

59+13=72

180-72=108

Emanuel can skateboard 3.375 miles against a 2-mph wind in the same amount of time he skateboards 6.375 miles with a 2-mph wind. Find the speed Emanuel skateboards with no wind.

Answers

Answer:

6.5 mph

Step-by-step explanation:

Given that :

Emanuel can skateboard 3.375 miles against a 2-mph wind in the same amount of time he skateboards 6.375 miles with a 2-mph wind. Find the speed Emanuel skateboards with no

Wind speed = 2mph

Let time taken to skateboard = t

Speed = distance / time

Distance of 3.375miles against 2 mph wind

Let skate speed = x

skate speed - wind speed=

(3.375 miles / t) + 2mph = x - - - (1)

Distance of 6.375miles with 2 mph wind

(6.375 miles / t) - 2 mph = x - - - - (2)

Equate (1) and (2)

(6.375/ t) - 2 = (3.375/ t) + 2

(6.375 - 3.375) / t = 2 + 2

3 / t = 4

3 = 4t

t = 3/4

t = 0.75

Hence, speed without wind will be :

(3.375 miles / 0.75) + 2mph = x

4.5mph + 2mph = 6.5 mph

can I get helpppppppppppppppppppppppp??

Answers

Answer:

6 + -15? That does equal -9.

Represent the following sentence as an algebraic expression, where "a number" is the letter x. You do not need to simplify.

The cube of the sum of a number and 8.

Answers

Answer:

This doesn´t make sense please clarify.

Step-by-step explanation:

which line on the graph below has a slope of zero

P
Q
R
S

Answers

The line on the graph that has a slope of zero is Q. Horizontal lines that have no rise to them always equal 0.

(2a + b) (2a + 3b) =

Answers

Answer:4 a 2 + 8 a b+ 3 b 2

Step-by-step explanation:

4a^2+6ab+2ab+3b^2 and the combine like terms 4a^2+3b^2+8ab das the answer you were looking for?

Solve v2 = 47.

please :)

Answers

Answer:

v=± 47=±6.8557

Step-by-step explanation:

(1): "v2" was replaced by "v^2".

(2) Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation: v^2-(47)=0

The value of v is ± 6.856.

What is a perfect square ?

A number when taken square root gives an integer is a perfect square and when a number is not a perfect square and we have taken it's square root the number is an irrational number.

According to the given question v² = 47.

∴ v = ±[tex]\sqrt{47}[/tex].

We know that v is between 6 and 7 but more closer to 7 as [tex]\sqrt{49}[/tex] is ±7 and [tex]\sqrt{36}[/tex] is ±6 we we can write an approximate value of v which is ±6.9 or we can use a calculator for which v = ± 6.856.

learn more about square roots here :

https://brainly.com/question/1387049

#SPJ2

Bonus: Three times my age plus four is one hundred and seventy
five. How old am I?

Answers

Answer:

57

Step-by-step explanation:

Answer:

525

Step-by-step explanation:

age * 3 = 175

175 * 3 = age

age = 525

A person can pay $8 for a membership to the science museum and then go to the museum for just $15. For a member of the science museum, what is the total cost of 2 visits?​

Answers

Answer:

its option A

Step-by-step explanation:

Answer:

I am pretty sure it is A.

Step-by-step explanation:

I think it is A.

How do you solve this problem?

Answers

There is one solution which is (1,-5)

.jjkjjjhygybhnjuikjuhyb

Answers

Answer:

okay...

Step-by-step explanation:

The sum of two numbers is 12 and the sum of their squares is 80. Find the numbers.

Answers

Answer:

Let us consider that the two numbers be x and y . The sum of two numbers is 12. The sum of their squares is 80. The numbers are 8,4.

Step-by-step explanation:

Hope this helps if it does pls give brainliest

The Magic Carpet charges $35 for installation and $0.25 per square yard of carpeting. The Carpeteria’s installation price is $27 but the store charges $0.50 for each square yard. What number of square yards of carpeting, x, will make Carpeteria cost more than Magic Carpet?

Answers

Answer:

si papi

Step-by-step explanation:

can you help me g=x-c+y for x

Answers

Answer:

c=−g+x+y

Step-by-step explanation:

X + 3 = x + 6
is it one solution no solution or infinitely solutions

Answers

Answer:

No solutions I think.

Step-by-step explanation:

no solution , hope it helps

Use the distributive property to write an equivalent expression.
9(x + 10)

Answers

Answer:

9x + 90

Step-by-step explanation:

Given

9(x + 10) ← multiply each term in the parenthesis by 9 )

= 9x + 90

subtract j from 9, then subtract 3 from the result

Answers

Answer

(9-j)-3

Step-by-step explanation:

Answer:

j-12

Step-by-step explanation:

without knowing what j is all you can do is combine like terms like -3 and -9

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