2 years ago

What is the exact area of a circle having diameter 7 in.?

Mathematics

1 answer:

grandymaker [24]2 years ago

6 0

Area of circle = <span>πr^2
r = 7/2 = 3.5
r^2 = 12.25

Area = 12.25</span><span>π in^2</span>

You might be interested in

PLEASE SHOW WORK AND SIMPLIFY

BabaBlast [244]

Answer:

Step-by-step explanation:

5 0

3 years ago

You are serving bratwurst and hamburgers at your annual picnic. You want at least three bratwursts or hamburgers for each of you

Firlakuza [10]

1.3*3=3.90
3.90*35=136.50
136.50 is all you need to provide at least three of the most expensive items.
You still have 13.50 left over

6 0

3 years ago

Read 2 more answers

Person A can make a cupcake in 5 minutes, Person B can make a cupcake in 9 minutes. In total they made 168 cupcakes. How many cu

Stolb23 [73]

Answer:

Person A made 108 cupcakes and person B made 60 cupcakes.

Step-by-step explanation:

Person A makes 1 cupcake in 5 minutes.

Say in x minutes A makes : $\frac{x}{5}$ cupcakes

Person B makes 1 cupcake in 9 minutes.

Say in x minutes B makes : $\frac{x}{9}$ cupcakes

Total cupcakes prepared by A and B in x minutes = 168

$\frac{x}{5}+\frac{x}{9}=168$

$\frac{14x}{45}=168$

$x=\frac{168\times 45}{14}=540$

So, cupcakes made by A = $\frac{540}{5}=108$

Cupcakes made by B = $\frac{540}{9}=60$

Person A made 108 cupcakes and person B made 60 cupcakes.

5 0

3 years ago

the total cost for material and labor for performing a blood test is $38.52. if the lab adds 15 2/5% to this cost for profit, wh

just olya [345]

Answer:

$44.45

Step-by-step explanation:

Convert 15 2/5% to decimal, =0.154

38.52+(38.52x0.154) (do this to add the cost of the % increase)

≈$44.45.

6 0

2 years ago

Read 2 more answers

Solve log 2x + log 12 =3 can

stepan [7]

Log(2x*12)=3
10^3=2x*12
1000=24x
1000/24=x
x=41.667

3 0

3 years ago