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IceJOKER [234]
3 years ago
7

Eric is planning to paint the four pillars that are attached to the front of his house. But, he needs to know how many square fe

et he'll be painting before he buys the paint. The pillars are each 10 feet tall and have a 1-foot diameter.
Mathematics
2 answers:
mariarad [96]3 years ago
6 0
Assume that the pillars are cylindrical..you're looking for the lateral surface area correct? to get the lateral surface area, you use the formula LSA = 2rh(pi) where r is radius h is height substitute the values... h = 10 d = 1 so r =1/2 so LSA = 2 (1/2)(10)(3.14) LSA = 10(3.14) LSA = 31.4 sq ft :D                                      Can You Mark Me Brainlest Plz...
Amiraneli [1.4K]3 years ago
3 0

Answer: He will be painting 125.6 square feet before he buys the paint.

Step-by-step explanation:

Since we have given that

Diameter of pillar = 1 foot

Radius of pillar = 0.5 feet

Height of pillar = 10 feet

Since there are 4 pillars.

We need to paint the 4 pillars.

So, for this we want surface area of each pillar.

As we know the "Lateral surface area of cylinder":

Area=2\pi rh\\\\Area=2\times 3.14\times 0.5\times 10\\\\Area=31.4\ sq.feet

Area of 4 pillars would be

4\times 31.4\\\\=125.6\ sq.feet

Hence, He will be painting 125.6 square feet before he buys the paint.

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Katlyn made 4 dresses with 7 yards of fabric how many yards of fadric did she use 1 dress
Ludmilka [50]

To solve this equation with algebra

4/7 = 1/x

(4/7)x = (1/x)x

4x/7 = 1

(4x/7)7 = 1(7)

4x = 7

4x/4 = 7/4

x = 1.75

1.75 yards of fabric are needed to make 1 dress.

Hope this helps! <3

5 0
3 years ago
20. What is the greatest prime factor of 3^7+6^6 ?
mario62 [17]

Answer:

67

Step-by-step explanation:

3^7 = 2187

6^6 = 46656

46656+2187=48843

Prime factors of 48843: 3, 3, 3, 3, 3, 3, 67

Factor tree:

48843

| \  

16281   3

| \  

5427   3

| \  

1809   3

| \  

603   3

| \  

201   3

| \  

67   3

3 0
2 years ago
3,047.092 in expanded form.
il63 [147K]

Answer:

it would be-3,000.000+40.000+7.00+0.09+0.002

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
What is a three digit number thats an odd multiple of three and the product of its digits is 24 and is larger than 15 squared?
Reika [66]
The only way 3 digits can have product 24 is 
1 x 3 x 8 = 241 x 4 x 6 = 242 x 2 x 6 = 242 x 3 x 4 = 24
So the digits comprises of 1,3,8 or 1,4,6, or 2,2,6, or 2,3,4 
To be divisible by 3 the sum of the digits must be divisible by 3.
1+  3+ 8=12, 1+ 4+ 6= 11, 2 +2 + 6=10, 2 +3 + 4=9Of those sums of digits, only 12 and 9 are divisible by 3. 

So we have ruled out all but integers whose digits consist of1,3,8, and 2,3,4.

Meanwhile they must be odd they either must end in 1 or 3.
The only ones which can end in 1 are 381 and 831.

The others must end in 3. 

They must be greater than 152 which is 225. So the

First digit cannot be 1. So the only way its digits can contain of1,3,8 and close in 3 is to be 813.

The rest must contain of the digits 2,3,4, and the only way they can end in 3 is to be 243 or 423.  
So there are precisely five such three-digit integers: 381, 831, 813, 243, and 423.
7 0
3 years ago
Please help me figure this out for me!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
nordsb [41]

Pretty sure its B but if im wrong please dont be mad.

7 0
3 years ago
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