Ask question

Ask question

All categories

jarptica [38.1K]

3 years ago

14

The radius of a circle is 4.3 inches. Using the formula A ≈ 3r2, what is the approximate area of the circle?

1 answer:

xz_007 [3.2K]3 years ago

6 0

Please, use the symbol " ^ " to denote exponentiation. At first I had no idea what you meant by 3r2.

You are using the approx. formula A = 3 r^2 to find the area.
The given radius is 4.3 inches. Subst. this value for r in the above equation.
Find A (keeping in mind that it's an approximation).

You might be interested in

How many weeks would it take Mai's family to finish 3 gallons of milk? Use one of the unit rates you found to solve.

Liula [17]

Answer:

Will you give me the numbers so I can give you the answer?

Step-by-step explanation:

8 0

4 years ago

I need help ASAP. The assignment is due at 11:59

Oksanka [162]

Answer:

its answer is 75 i guess

5 0

3 years ago

Read 2 more answers

A description using numbers

HACTEHA [7]

Qi = letter D followed by letter A repeated i times

sj= same thing follows with letter C j times

6 0

4 years ago

How substation y=3x-7 <br> 2y+4x=36

SSSSS [86.1K]

The solution is:

x = 5

y = 8

Step-by-step explanation:

Given equations are:

$y=3x-7\ \ \ Eqn\ 1\\2y+4y = 36\ \ \ Eqn\ 2$

Putting y = 3x-7 in equation 2

$2(3x-7)+4x = 36\\6x-14+4x = 36\\10x-14 = 36\\10x = 36+14\\10x = 50$

Dividing both sides by 10

$\frac{10x}{10} = \frac{50}{10}\\x = 5$

Putting x=5 in eqn 1

$y = 3(5)-7\\= 15-7 = 8$

Hence,

x = 5

y = 8

Keywords: Linear equation, substitution method

Learn more about linear equation at:

#LearnwithBrainly

8 0

3 years ago

What is the solution to the following system of equations?<br> y = x2 + 10x + 11<br> y = x2 + x − 7

marishachu [46]

Hello,

y=x²+10x+11
y=x²+x-7

==>x²+10x+11=x²+x-7
==>9x=-18
==>x=-2

Sol={(-2,-5)}

8 0

4 years ago