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Alex_Xolod [135]
3 years ago
15

Please help with this q

Mathematics
1 answer:
myrzilka [38]3 years ago
3 0

\frac{2 {x}^{2} - 2x }{x - 1}  \div  \frac{2x + 8}{x - 3}  \\  =  \frac{2x {}^{2}  - 2x}{x - 1}  \times  \frac{x - 3}{2x + 8} \\  =  \frac{(2 {x}^{2} - 2x)(x - 3) }{(x - 1)(2x + 8)}

So:

1) x - 1 ≠ 0

x ≠ 1

2) 2x + 8 ≠ 0

2x ≠ -8

x ≠ -4

(B)

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If FHG ≅ WXY, what are the corresponding parts?
juin [17]

Answer:

see below

Step-by-step explanation:

FHG ≅ WXY

This means the angles are congruent and the sides are congruent.  We keep the letters in the same order

<F ≅ <W

<H ≅ <X

<G ≅ <Y

FH ≅ WX

FG ≅ WY

HG ≅ XY

5 0
3 years ago
The second term of a GP is 4, the fifth term is 81. Find the seventh term
navik [9.2K]

Answer:

The seventh term of a G.P is

t_{7}  = 33,097.211

Step-by-step explanation:

<u><em>step(i):</em></u><em>-</em>

<em>Given the second term of a G.P is '4'</em>

<em>The general term of nth term is </em>

<em></em>t_{n}  = ar^{n-1}<em></em>

<em></em>t_{4}  = ar^{4-1} =4  

ar^{3} =4 …(i)    

<em>Also Given the fifth term of a G.P is '81'</em>

t_{5}  = ar^{5-1} =81

ar^{4} =81  …(ii)      

<u><em>Step(ii)</em></u>:-

<em>Dividing the equation (ii) divided by (i)</em>

<em />\frac{ar^{4} }{ar^{3} } = \frac{81}{4}<em />

<em>cancellation ' a' and 'r' terms , we get</em>

<em />r = \frac{81}{4}=20.25<em />

<em>substituting 'r' Value in equation (i), we get</em>

<em></em>ar^{3} =4<em></em>

a(\frac{81}{4}) ^{3} =4  

a = \frac{4X4X4X4}{(81)^{3} }= \frac{256}{531,441}

a = 0.00048

<u><em>Step(iii):-</em></u>

<u><em>The seventh term of G.P </em></u>

<em>The general term of nth term is </em>

<em></em>t_{n}  = ar^{n-1}<em></em>

<em></em>t_{7}  = (0.00048)(20.25)^{7-1}<em></em>

<em></em>t_{7}  = (0.00048)(20.25)^{6}= 33,097.211<em></em>

<em></em>

<em></em>

3 0
4 years ago
What is 47 divided by 5?
sweet [91]
47÷5 is 9.4 hope this help
7 0
3 years ago
Read 2 more answers
Graph the line that passes through the points (2, 1) and (1, -2) and determine the equation of the line.
ankoles [38]

Answer:

y = 3x - 5

Step-by-step explanation:

Slope Formula: m = \frac{y2-y1}{x2-x1}

Slope-Intercept Form: y = mx + b

Step 1: Find slope

m = (-2 - 1)/(1 - 2)

m = 3

Step 2: Find <em>b</em>

y = 3x + b

-2 = 3(1) + b

-2 = 3 + b

b = -5

Step 3: Rewrite linear equation

y = 3x - 5

Step 4: Graph using graphing calc

3 0
4 years ago
Please help asap . i will givw brainliest
notsponge [240]
To be honest I really don’t know sorry for not helping
5 0
3 years ago
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