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larisa86 [58]
3 years ago
13

Find the surface area. Round to the nearest hundredth.

Mathematics
1 answer:
lina2011 [118]3 years ago
6 0

Answer:

C. 570.20 ft²

Step-by-step explanation:

Surface

A = 2·pi·r^2 + 2·pi·r·h

A = 2·pi·5.5^2 + 2·pi·5.5·11 = 570.20 ft²

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19 less than a number is the same as the sum of half the number and six. What is the number?
Arada [10]

Step-by-step explanation:

x-19=1/2x+6

50-19= 31

50/ 1/2 = 25 + 6 = 31

5 0
3 years ago
Write two mixed numbers that have a sum of 3 4/5.
Lena [83]

Answer:

All you have to do is divide 3 4/5 by 2 which is<u> 1 9/10</u>

Step-by-step explanation:

8 0
3 years ago
Which lines are parallel if m&lt;1 +m&lt;2=180?
Harrizon [31]
Answer is choice A) j || k by the Converse of the Same Side Interior Angles Theorem

Lines j and k are the upward slanted lines on the left and right respectively. The transversal we only care about is line k. Line g is extra info put in there most likely to throw you off.

------------------------------------------------------

The Same Side Interior Angles Theorem says that if two lines are parallel, then the same side interior angles (formed by the transversal cut) are supplementary. Those two same side interior angles add to 180 degrees. The converse reverses the direction of the theorem.

The converse says that if we know the same side interior angles are supplementary, then it leads to the two parallel looking lines to actually being parallel. So this is one way to check parallel-ness of two lines.
7 0
3 years ago
Read 2 more answers
Help plz ..............
Artemon [7]
First I would find the base, which is a square so 10x10=100
then find the triangle (a=1/2bh) a=1/2(12)(10) a=1/2(120) a=60
since there are four triangle sides do 60x4 which equals 240, so  then add the sides to the base 100+240=340, the answer is A
3 0
3 years ago
the interor angles of a triangle have measures 100 degrees 4y+25 degrees and 3y+20 degrees whats the value of y ​
pav-90 [236]

Answer:

y = 5

Step-by-step explanation:

The 3 interior angles of a triangle sum to 180°

Sum the 3 given angles and equate to 180

100 + 4y + 25 + 3y + 20 = 180 ← simplify left side

7y + 145 = 180 ( subtract 145 from both sides )

7y = 35 ( divide both sides by 7 )

y = 5

7 0
3 years ago
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