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MA_775_DIABLO [31]
3 years ago
13

The circumference of a circular painting is 40.82 feet. What is the radius of the painting? Use 3.14 for pie and do not round yo

ur answer.
Mathematics
1 answer:
erica [24]3 years ago
3 0

Answer:

The radius is equal to 6.5 feet.

Step-by-step explanation:

To solve this we need to know that circumference equals 2πr (where "r" is the radius). Therefore, we can make the following equation...

2πr = 40.82

πr = 20.41

3.14r = 20.41

r = 6.5

Now we know that the radius is equal to 6.5 feet.

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3 years ago
15 postcards, 10 envelopes, and a notepad cost 1 dollar and 68 cents. The envelope is 8 times cheaper than the notepad and 2 cen
Vlad1618 [11]

15 postcards, 10 envelopes, and a notepad cost------------------- 1.68 dolars

 

 

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Notepad--------------z

 

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<span>Z=8y       x=y-0.02</span>

15(y-0.02)+10y+8y=1.68

15y-0.30+18y=1.68

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Costs

Postcards------------0.04 dolars/ 4 cents

Envelopes------------0.06 dolars/ 6 cents

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3 0
4 years ago
F(x)=6x^3 - 3x^2 4x- 15 for x = -3.5
Airida [17]

Answer:

Factor by grouping. (3r + 5)(r-3)

Step-by-step explanation:

8 0
4 years ago
Which of the following lengths will form a triangle?
Umnica [9.8K]

Answer:

c

Step-by-step explanation:

because 4.2+7.6= 11.8, so it is higher than the third side

7 0
3 years ago
What number is 25% of 35% of 400
Aleksandr-060686 [28]
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35/4 / 100 ( 400)

7/80 (400)

= 35
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4 years ago
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