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schepotkina [342]
3 years ago
12

Please help, explain too and I will give brainliest :)

Mathematics
2 answers:
motikmotik3 years ago
8 0

Answer:

c

Step-by-step explanation:

sweet-ann [11.9K]3 years ago
3 0

Answer:

C. 37 degrees

Step-by-step explanation:

27, 36, 45 is just a larger 3, 4, 5 triangle. The smallest angle is across from the smallest side. With those in mind, we have 37, 53, and 90 degrees as the angles for a 3, 4, 5 triangle. We pair the 27, (the three when we reduce) with the smallest angle, the 37.

I'm sure you can do it with an actual formula, but i can't recall. Cheers

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The intersection of 2 planes can be defined as a_____?
tamaranim1 [39]

The intersection of two planes is a line.   That's not necessarily the definition of a line, but that's probably what they're looking for.


Answer: line


5 0
3 years ago
Read 2 more answers
What is the surface area of the figure? 408ft^2 458ft^2 545ft^2 720ft^2
ser-zykov [4K]

9514 1404 393

Answer:

  (b)  458 ft²

Step-by-step explanation:

The total area is the sum of the L-shaped front and back areas and the areas of the 6 rectangular faces.

The front L-shaped area can be considered to be a 12 ft × 12 ft square with a 5 ft × 7 ft rectangle cut from the upper left corner. Its area is then ...

  (12 ft)(12 ft) -(5 ft)(7 ft) = (144 -35) ft² = 109 ft² . . . . front area

__

The sum of the areas of the rectangular faces is the product of the width of the figure (5 ft) and the perimeter of the L-shaped face. That perimeter is the sum of the edge lengths. Starting from the lower-left corner and working clockwise, we find the perimeter to be ...

  7 ft + 7 ft + 5 ft + 5 ft + 12 ft + 12 ft = 48 ft

Then the sum of rectangular face areas is ...

  (48 ft)(5 ft) = 240 ft² . . . . rectangular face area

The total surface area is then ...

  2×front area + rectangular face area

  = 2×109 ft² +240 ft² = 458 ft² . . . . total surface area

3 0
3 years ago
A social problem can best be described as:
Reil [10]

Answer:

A.

Step-by-step explanation:

an issue that negatively impacts a group of people.

3 0
4 years ago
A phone company offers two monthly plans. Plan A costs $25 plus an additional $0.07 for each minute of calls. Plan B costs $16 p
Blizzard [7]

Answer:

1) For 450 minutes of calling the two plans cost the same.

2) The cost when the two plans cost the same is $56.5.

Step-by-step explanation:

The cost of both plans can be modeled by linear functions.

Plan A:

$25 plus an additional $0.07 for each minute of calls.

So, for t minutes of calls, the cost is:

A(t) = 25 + 0.07t

Plan B:

$16 plus an additional $0.09 for each minute of calls.

So, for t minutes of calls, the cost is:

B(t) = 16 + 0.09t

Q1: For what amount of calling do the two plans cost the same?

This is t for which:

A(t) = B(t)

25 + 0.07t = 16 + 0.09t

0.02t = 9

t = \frac{9}{0.02}

t = 450

For 450 minutes of calling the two plans cost the same.

Q2: What is the cost when the two plans cost the same?

This is A(450) or B(450), since they are the same.

B(450) = 16 + 0.09*450 = 56.5

The cost when the two plans cost the same is $56.5.

4 0
4 years ago
If KL = 8 and KM = 12, what is KN? Round your answer to the nearest tenth.
AVprozaik [17]

Answer:

it is 20

Step-by-step explanation:

12-8=4 so we add the 4 to the 12 and it gives us 16...then 16 rounded off to the nearest 10 is 20

7 0
2 years ago
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