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Natasha2012 [34]
3 years ago
5

Write down the first three terms of the sequence whose nth term is given by 2n-5

Mathematics
1 answer:
likoan [24]3 years ago
6 0

Answer:

- 3, - 1, 1

Step-by-step explanation:

To find the first 3 terms substitute n = 1, 2, 3 into the formula

a₁ = 2(1) - 5 = 2 - 5 = - 3

a₂ = 2(2) - 5 = 4 - 5 = - 1

a₃ = 2(3) - 5 = 6 - 5 = 1

The first 3 terms are - 3, - 1, 1

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What number is between 3/4 and 6/5​
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Answer:

19.5/20

Step-by-step explanation:

3/4=15/20

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--|-----|-----|----|-----|-----|------|----|-----|----|-----------

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5 0
3 years ago
How do i simplify 2a x 3b x 4c
AlekseyPX
In the expression <span>2a x 3b x 4c,
2, 3 and 4 are the coefficients and a, b and c are the variables.
When such a multiplications is given, multiply the coefficients together and the variables together.

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6 0
3 years ago
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Find the surface area of the prism
Andrei [34K]
<h3>Answer:  168 square feet</h3>

=========================================================

Explanation:

The front triangular face is a triangle with base 8 and height 6. Its area is

A = 0.5*base*height

A = 0.5*8*6

A = 24 square feet

The back triangular face is also 24 square feet since these are the base faces of the prism. The base faces are always congruent. It might help to imagine this figure is turned on its side.

The slanted lateral face is a rectangle of length 10 ft and width 5 ft, so its area is L*W = 10*5 = 50 square feet

The rectangular face on the left is 6 ft by 5 ft giving an area of 6*5 = 30 square feet.

Lastly, the bottom rectangular face is 8 ft by 5 ft giving an area 8*5 = 40 square feet

Overall, the total surface area is: 24+24+50+30+40 = 168 square feet

We just add up all the individual areas of each face to get the total surface area.

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Answer:

I think it's D

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Because all of them are true

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