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TEA [102]
3 years ago
5

D is the wrong answer please help :(

Mathematics
2 answers:
Stella [2.4K]3 years ago
8 0

This can be solved by Newton's binomial formula

Tk+1 = (n k) a∧(n-k) b∧k  k+1=7 => k=6, n=11 , a=-3x and b=-2y

T7= (11 6) (-3x)∧(11-6) (-2y)∧6 = (11*10*9*8*7)/(1*2*3*4*5) (-3x)∧5 (-2y)∧6

T7= 462 (-3x)∧5 (-2y)∧6

The correct answer is A.

Good luck!!!


Viktor [21]3 years ago
7 0

\displaystyle T_r=\binom{n}{r-1}x^{n-r+1}y^{r-1}\\\\\\T_7=\binom{11}{6}(-3x)^{11-7+1}(-2y)^{7-1}\\\\T_7=\dfrac{11!}{6!5!}(-3x)^5(-2y)^6\\\\T_7=\dfrac{7\cdot8\cdot9\cdot10\cdot11}{2\cdot3\cdot4\cdot5}(-3x)^5(-2y)^6\\\\T_7=462(-3x)^5(-2y)^6

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The sum of Mary and Al's age is 48. Twelve years ago, Mary was twice as old as Al.
QveST [7]
Let us denote the years of Mary with M and the years that Al have with A.
<span>We know that the sum of Mary and Al's age is 48. So, we can write:
M+A=48 (1)
</span><span>We also know that twelve years ago, Mary was twice as old as Al. So we can write:
M-12=2*A (2)
From the first equation (1): M=48-A
Let put this in the second equation:
48-A-12=2A
36=3A
A=12
M=48-12=36
</span>
8 0
3 years ago
PLEASE I NEED AN ANSWER NOW
Brut [27]

Answer:

$12,800

Step-by-step explanation:

42-18= 24

24 is the years the money is growing.

24/4=6

200x2x2x2x2x2x2=12,800

if it doubles every six years it would be 200x2x2x2x2=3,200

the difference is 9,600

7 0
3 years ago
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A. 8<br> b. 4<br> c. 16<br> d. 12
Oxana [17]

b. 4

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5 0
2 years ago
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Marigold Corp. took a physical inventory on December 31 and determined that goods costing $209,500 were on hand. Not included in
yaroslaw [1]

Answer:

Marigold should report an inventory amount of $265,000.

Explanation:

The term FOB (Free On Board) describes at what point the ownership of goods is transferred from the seller to the buyer. In case of FOB shipping point, the ownership of the goods is transferred to the buyer once the goods are shipped for transit. In case of FOB destination, the ownership of the goods is transferred to the buyer once the goods are received by the buyer.

Therefore, the goods in transit <em>purchased </em>by Marigold on FOB shipping point basis should be added to its inventory. The goods in transit <em>sold </em>by Marigold on FOB destination are also currently owned by Marigold so they shall also be added to its inventory.

The inventory amount to be reported by Marigold is computed as follows.

Physical inventory in hand                                          $209,500

Add: Purchases on FOB shipping point basis           $28,000

Add: Cost of goods sold on FOB destination basis  $27,500

Inventory amount to be reported                              $265,000

7 0
3 years ago
Which of the following statements is no True?
bezimeni [28]

Answer:

correct answer is A. because the square root of 122 is 11.06 which means its between 11 and 12, not 10 and 11

Step-by-step explanation:

4 0
2 years ago
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