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Musya8 [376]
3 years ago
6

HELP PLEASE answer for surface area

Mathematics
1 answer:
choli [55]3 years ago
4 0
SA= 2∏rh + 2∏R2

=2(9)11 + 2(9)2

198+162 

SA= 360∏
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Simplify 15 to the 18th power over 15 to the 3rd power.
worty [1.4K]
The rule for quotients of similar bases with different exponents is:

(a^c)/(a^b)=a^(c-b)  in this case:

15^18/(15^3)=15^15


3 0
2 years ago
Please help me out!!!
professor190 [17]

Answer:

<u>416 square centimeters</u>

Step-by-step explanation:

Formula for finding area of a trapezoid :

<u>A = 1/2 x (a + b) x h</u>

  1. a and b = parallel sides of the trapezoid
  2. h = height of the trapezoid

Solving :

  • A = 1/2 x (38 + 14) x 16
  • A = 8 x 52
  • A = <u>416 square centimeters</u>
3 0
2 years ago
Read 2 more answers
Triangle FGH has the following side lengths: FG = 5 ft, GH = 10 ft, HF = 12 ft Triangle PQR is similar to triangle FGH. The long
7nadin3 [17]
The first thing we must do for this case is find the scale factor.
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 k =  \frac{RP}{HF}
 k = \frac{7.2}{12}
 k = 0.6
 To find the other two sides, we must apply the scale factor on each side of the triangle FGH.
 We have then:

 For PQ
 
PQ = k * FG&#10;&#10;PQ = 0.6 * 5&#10;&#10;PQ = 3

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QR = k * GH&#10;&#10;QR = 0.6 * 10&#10;&#10;QR = 6

 Answer:
 
You have that the lengths for the other two sides of triangle PQR are:
 
PQ = 3&#10;&#10;QR = 6
3 0
3 years ago
Tia and Tom are making cupcakes. They need 3/4 a cup of flour and 1/3 cup of butter per batch. If they have 4 1/4 cups of flour
expeople1 [14]

Answer:

5

Step-by-step explanation:

3 0
2 years ago
The perimeter of a rectangle is 61 feet. The length is 5 more than twice the width. What is the length and width?
DochEvi [55]

Answer:

Length = 22 feet Width= 8.5 feet

Step-by-step explanation:

Perimeter= 61

Let Width= x

Length= 2x+5

Perimeter= 2l + 2w

61= 2(2x+5) + 2x

61 = 2(2x+5+x)

61/2 = 3x+5

30.5 -5 = 3x

25.5 = 3x

25.5/3 =x

x= 8.5

Hence, width = 8.5 feet

Then, the length = 2x+5 = 2(8.5) +5 = 22 feet

Hope this helps!

6 0
3 years ago
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