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4 years ago

I need all I don't know how to do????

Mathematics

1 answer:

Ghella [55]4 years ago

6 0

Need the answers to all the questions?

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Write each fraction in its simplest form 8/22 and 6/7

MA_775_DIABLO [31]

4/11 and 6/7 is already in simplest form

7 0

4 years ago

Read 2 more answers

3/2 x 4/3 x 5/4… x 2006/2005

Lady_Fox [76]

Answer:

1003

Step-by-step explanation:

The problem is a classic example of a telescoping series of products, a series in which each term is represented in a certain form such that the multiplication of most of the terms results in a massive cancelation of subsequent terms within the numerators and denominators of the series.

The simplest form of a telescoping product $a_{k} \ = \ \displaystyle\frac{t_{k}}{t_{k+1}}$ , in which the products of <em>n</em> terms is

$a_{1} \ \times \ a_{2} \ \times \ a_{3} \ \times \ \cdots \times \ a_{n-1} \ \times \ a_{n} \ = \ \displaystyle\frac{t_{1}}{t_{2}} \ \times \ \displaystyle\frac{t_{2}}{t_{3}} \ \times \ \displaystyle\frac{t_{3}}{t_{4}} \ \times \ \cdots \ \times \ \displaystyle\frac{t_{n-1}}{t_{n}} \ \times \ \displaystyle\frac{t_{n}}{t_{n+1}} \\ \\ \-\hspace{5.55cm} = \ \displaystyle\frac{t_{1}}{t_{n+1}}.$ .

In this particular case, $t_{1} \ = \ 2$ , $t_{2} \ = \ 3$ , $t_{3} \ = \ 4$ , ..... , in which each term follows a recursive formula of $t_{n+1} \ = \ t_{n} \ + \ 1$ . Therefore,

$\displaystyle\frac{t_{2}}{t_{1}} \times \displaystyle\frac{t_{3}}{t_{2}} \times \displaystyle\frac{t_{4}}{t_{3}} \times \cdots \times \displaystyle\frac{t_{n}}{t_{n-1}} \times \displaystyle\frac{t_{n+1}}{t_{n}} \ = \ \displaystyle\frac{3}{2} \times \displaystyle\frac{4}{3} \times \displaystyle\frac{5}{4} \times \cdots \times \displaystyle\frac{2005}{2004} \times \displaystyle\frac{2006}{2005} \\ \\ \-\hspace{5.95cm} = \ \displaystyle\frac{2006}{2} \\ \\ \-\hspace{5.95cm} = 1003$

6 0

3 years ago

How to solve step by step

nasty-shy [4]

A/7 + 5/7 = 2/7

1/7a + 5/7 = 2/7

1/7a + 5/7 - 5/7 = 2/7 - 5/7
1/7a = -3/7

7*(1/7a) = 7*(-3/7)
a = -3

5 0

4 years ago

Y = 2x – 5<br><br> 2y – 4x =

zavuch27 [327]

Answer:

assuming 2y - 4x equals 0 the answer is no solution

Step-by-step explanation:

2(2x-5) - 4x = 0

4x-10 -4x=0

combine like terms

-10=0

no solution

6 0

4 years ago

7th grade math help me please :))

KatRina [158]

Answer:

Step-by-step explanation:

s = 2;

h = 4

Surface area = 2s² + 4sh

= 2*2² + 4 * 2 * 4

= 2 *4 + 32

= 8 + 32

= 40 sq. units

7 0

3 years ago