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Alex
3 years ago
6

Simplify 2xy + 3y - 13xy + 4x - 17y

Mathematics
1 answer:
Yakvenalex [24]3 years ago
4 0

Answer:

-11xy-14y+4x

Step-by-step explanation:

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6 0
3 years ago
Find the explicit formula for the sequence: 2,5,8,11,14
gizmo_the_mogwai [7]

Step-by-step explanation:

Given sequence is: 2,5,8,11,14

Here first term a = 2

Common Difference d = 3

\because \:  t_n = a +(n-1) d \\  \\  \therefore \: t_n = 2+(n-1) 3 \\  \\ \therefore \: t_n = 2+3n- 3 \\  \\  \huge \purple{ \boxed{\therefore \: t_n = 3n- 1}} \\  is \: the \: required \: explicit \: formula\\

4 0
3 years ago
How many different ways can you write a fraction that has a numerator of 2 as a sum of fractions
svetoff [14.1K]
Infinitely many ways! 
Suppose you have the fraction 2/d.

<span>Pick </span>any<span> pair of integers a and b where b ≠ 0.</span>
Then 2b-ad is and integer, as is bd so that (2b - ad)/bd is a fraction.

Consider the fractions a/b and (2b - ad)/bd

<span>Their sum is </span>
a/b + (2b-ad)/bd = ad/bd + (2b-ad)/bd = 2b/bd = 2/d - as required.

<span>Since a and b were chosen arbitrarily, there are infinitely many possible answers to the question.</span>
5 0
3 years ago
Use the formula v=u+at <br>calculate v when:<br>u=10, a=3, t=2.5​
Ksenya-84 [330]

Answer:

<h2>17.5</h2>

Step-by-step explanation:

v = 10 + 3 \times 2.5 \\ v = 10 + 7.5 \\ v = 17.5

This is your answer :))

7 0
3 years ago
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Murljashka [212]

Answer: 200

Step-by-step explanation:

since 10 is one part

10 x 20 = 200

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3 years ago
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