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4 years ago

Simplify the following

Mathematics

1 answer:

marusya05 [52]4 years ago

7 0

Answer:

try 6^(-1) = 0.17 or 1/6

Step-by-step explanation:

1/6 in decimal form is 1.66666... which technically should round to 1.7

if 1.7 isn't the right answer try righting it in exact form, 1/6 where there is no estimation

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X2y4(x2 - 16) - 9y4(x4 - 16) how do i simply this?

e-lub [12.9K]

Answer:

The simplified expression is given as

$8x^2y^4(17x^2-2)$

Step-by-step explanation:

step one:

Given the expression

$x^2y^4(x^2 - 16) - 9y^4(x^4 - 16)$

step two:

First, let us open the bracket we have

$x^2y^4(x^2 - 16) - 9y^4(x^4 - 16)\\\\x^4y^4-16x^2y^4-9x^4y^4+144x^4y^4\\\\$

step three:

collect like terms we have

$x^4y^4-16x^2y^4-9x^4y^4+144x^4y^4\\\\x^4y^4-9x^4y^4+144x^4y^4-16x^2y^4\\\\-8x^4y^4+144x^4y^4-16x^2y^4\\\\136x^4y^4-16x^2y^4\\\\\\$

step four:

we can now factor out $8x^2y^4$ we have

$8x^2y^4(17x^2-2)$

4 0

4 years ago

What is the answer to 20+x>70

choli [55]

20+x>70
-20. -20. on both sides to even it out

x>50 is the answer

7 0

3 years ago

Allison bought a 36 piece box of chocolates. 1/3 were creams 1/4 were nuts

ki77a [65]

A.
1/3 were creams
1/3 of 36 means 1/3 times 36 or 1/3 times 36/1=36/3=12 (by long division or times tables)

B.
1/4 of all or 36, so 1/4 of 36 is 36/4=9 (by long divison or times tables)

C. so we do total-creams-nuts=rest
36-12-9=15 other

A. 12
B. 9
C. 15

5 0

4 years ago

Read 2 more answers

if 2000 Qr is equal to 157960 NC and 1 HKD is equal to 13.62 NC then how many QR is equal to HKD 315920

Airida [17]

Using proportions, it is found that 5449.62 QR is equal to HKD 315920.

<h3>Proportions</h3>

This question is solved by <em>proportions</em>, using a rule of three.

<h3>Conversion of KR to HKD:</h3>

2000 Qr are equal to 157960 NC. 1 HKD is equal to 13.62 NC, hence, how many QR are worth 13.62 NC?

Hence, the <em>rule of three</em> is:

2000 QR - 157960 NC

x QR - 13.62 NC

Applying cross multiplication:

$157960x = 200(13.62)$

$x = \frac{200(13.62)}{157960}$

$x = 0.01725$

Then:

We have that 1 HKD is equals to 0.01725 QR. How many QR are equal to HKD 315920?

Then, the second <em>rule of three</em> is:

1 HKD - 0.01725 QR

315920 HKD - x QR

Applying <em>cross multiplication:</em>

$x = 0.01725(315920) = 5449.62$

5449.62 QR is equal to HKD 315920.

To learn more about proportions, you can take a look at brainly.com/question/24372153

7 0

3 years ago

How many ways can eight girls sit together in a row?

defon

In 10080 ways

<u>Step-by-step explanation:</u>

We first treat the two people how have to sit together as 1 item taking up 2 seats so they have 7 possibilities of seats i.e. 12 23 34 45 56 67 78 and the two of them can sit in 2 possible ways, AB or BA

Now, the other 6 people will have 6 seats to choose from. So the total number of ways they can sit is 6 for the first person 5 for the second and so on so its 6!

Thus, the total number is $7 \times 2 \times 6 !$ = 10 080

4 0

4 years ago

Read 2 more answers