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vovikov84 [41]
3 years ago
11

Find (a) the circumference and (b) the area of the circle. Use 3.14 or 22/7 for pi. Round your answer to the nearest whole numbe

r, if necessary.
A circle with a diameter of 70 inches.

(a) circumference: about ? in.

(b) area: about ? in.²
Mathematics
2 answers:
poizon [28]3 years ago
8 0

Answer:

lol

Step-by-step explanation:

h

balandron [24]3 years ago
4 0

Answer:

a)219.8

b)3846.5

Step-by-step explanation:

a) circumference is pi*diameter, so 3.14*70 is 219.8

b) area is pir^2, and radius is 1/2 of diameter, it would be 3.14*35^2, so 3.14*1225, so 3,846.5 in^2.

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3 years ago
The dance committee of Pine Bluff Middle School earns $72 from a bake sale and will earn $4 for each ticket they sell to the Spr
nordsb [41]

Answer:

t > 82

Step-by-step explanation:

First write what we know.

Earned $72

$4 per ticket, t

Cost is $400

So let's write our equation:

The cost is $400 so we put that on the left side,

$400 =

Now on the right side, we know they earned $72, so +$72 and each ticket (t) is $4 so $4t would represent the amount earned after they sell a certain number of tickets.

So we write:

$400 = $4t + $72 Now solve for t to find the number of tickets they need to sell.

400 = 4t + 72   Subtract 72 from each side.

400 - 72 = 4t + 72 - 72  

328 = 4t     Divide each side by 4.

328/4 = 4t/4

328/4 = t

82 = t

If the committee wants money left over they need to sell more than 82 tickets!

Our inequality is:

t > 82

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2 years ago
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Solnce55 [7]
What I don’t speak that language im sorry
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3 years ago
Solve 5√3 as the square root of a single number​
Andreyy89

Answer:

/75

Step-by-step explanation:

As I couldn't take the radical symbol I used this - "/".

5 /3

If 5 has to come in the radical sign it has to be squared

So, /25 × /3

/25×3

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3 years ago
If f(x) =2x^2 + 5 and g(x) = x^2 - 2 find (f-g) (x)
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