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3 years ago

25/8 in decimal form

Mathematics

2 answers:

Brilliant_brown [7]3 years ago

7 0

Answer:

3.125

Step-by-step explanation:

uysha [10]3 years ago

6 0

Answer:

25/8 in a decimal form is

Step-by-step explanation:

3.125

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A rectangle has an area of 102 cm ^2. The length of the rectangle is 17 cm.

kari74 [83]

The perimeter is 46cm you find the width by dividing the area by the length and then add the length and width times 2 to get the perimeter

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3 years ago

I) Find the first 4 terms in the expansion of

Katyanochek1 [597]

Answer:

(i) $64+192 x^2+240 x^4+160x^6$

(ii) 1072

Step-by-step explanation:

Part (i)

Using Binomial series formula:

$(2+x^2)^6=2^6+6C1 \cdot 2^{6-1}\cdot x^2+6C2 \cdot 2^{6-2}\cdot(x^2)^2+6C3 \cdot 2^{6-3}\cdot(x^2)^3$

$=64+6 \cdot 32\cdot x^2+15 \cdot 16\cdot x^4+20 \cdot 8 \cdot x^6$

$=64+192 x^2+240 x^4+160x^6$

Part (ii)

$(1-\frac{3}{x^2})^2=(1-\frac{3}{x^2})(1-\frac{3}{x^2})$

$=1-\dfrac{6}{x^2}+\dfrac{9}{x^4}$

$(2+x^2)^6(1-\frac{3}{x^2})^2=(64+192 x^2+240 x^4+160x^6)\left(1-\dfrac{6}{x^2}+\dfrac{9}{x^4} \right)$

$=64-\dfrac{384}{x^2}+\dfrac{576}{x^4}+192x^2-1152+\dfrac{1728}{x^2}+240x^4-1440x^2+2160+...$

There is no need to keep expanding since the remaining will include the variable.

Therefore, the term independent of x = 64 - 1152 + 2160 = 1072

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3 years ago

Y’all someone help pls 5x-3=21-x

attashe74 [19]

5x-3=21-x
6x=24
X=4

You simply have to isolate the variable and then divide by 6 so that x is completely alone.

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3 years ago

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Step-by-step explanation:

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3 years ago

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Answer:

Here is the solution. Hope it helps.

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3 years ago