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dezoksy [38]
3 years ago
6

What are the first 4 terms in the sequence represented by the expression 2n+3

Mathematics
2 answers:
torisob [31]3 years ago
5 0
The answer would be A
otez555 [7]3 years ago
5 0
2n + 3

n = 1, 2, 3, 4,...

For n = 1, 2n + 3 = 2*1 + 3 = 2 + 3 = 5

For n = 2, 2n + 3 = 2*2 + 3 = 4 + 3 = 7

For n = 3, 2n + 3 = 2*3 + 3 = 6 + 3 = 9

For n = 4, 2n + 3 = 2*4 + 3 = 8 + 3 = 11


So the first four terms are 5, 7, 9, 11. So it is option C. And yes you are right.

How did you manage to get it right even with a foggy head.

Hope this helps.
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B.

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Find c, if a = 6.5 ft and b = 2.1 ft. Round to the nearest hundredth
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860

Step-by-step explanation:

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2+2<br> Show your work and the first answer gets a brainliest
bazaltina [42]

Answer:

Four/4

Step-by-step explanation:

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8 0
3 years ago
Based on your observations, what conclusion can you draw about the lengths of AB DB AE EC
Deffense [45]

Answer:

The ratio of AD to DB is equal to the ratio of AE to EC. In other words, the pairs of lengths are proportional.

Step-by-step explanation:

Sample answer from plato

4 0
3 years ago
the length of a rectangle is 5 times as long as its breadth and its area is 1620 m² find area of square whose perimeter is equal
Rus_ich [418]

Answer:

Area of the square is 2916 m^{2}.

Step-by-step explanation:

Let the breadth of the rectangle be represented by w. So that;

length of rectangle = 5w

Area of rectangle = length x breadth

                             = 5w x w

1620 = 5w^{2}

divide through by 5 to have,

w^{2} = 324

w = \sqrt{324}

   = 18

Thus, the breadth of the rectangle is 18 m.

length = 5 w = 5 x 18

           = 90 m

The length of the rectangle is 90 m.

Perimeter of the rectangle = 2(l + w)

                                  = 2( 90 + 18)

                                  = 216 m

Perimeter of a square = 4l

where l is the length of its side.

Given that the perimeters of the rectangle and square are equal, then;

4l = 216

l = \frac{216}{4}

 = 54

length of the side of square is 54 m.

Therefore,

Area of square = l^{2}

                         = 54^{2}

                        = 2916

Area of the square whose perimeter is equal to that of the rectangle is 2916 m^{2}.

6 0
3 years ago
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