3 years ago

What is the value of x

Mathematics

1 answer:

Anna71 [15]3 years ago

4 0

Answer:

I had this question yester day.

Step-by-step explanation:

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What number should be added to -28 to make the sum 0? 28 -28 027 00

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Answer:

Step-by-step explanation:

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3 years ago

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Find the 6th term in the expansion of (x + 2)9.

Masja [62]

Answer:

$4032x^4$

Step-by-step explanation:

Use the 10th row of Pascal's Triangle to get you where you need to be. You need 10 rows because any polynomial raised to the 9th power has 10 terms. Those 10 terms are, in order:

1, 9, 36, 84, 126, 126, 84, 36, 9, 1

Setting up for the first 6 terms:

$1(x^9)(2^0)+9(x^8)(2^1)+36(x^7)(2^2)+84(x^6)(2^3)+126(x^5)(2^4)+126(x^4)(2^5)+...$

The 6th term is the last one. It goes on from there, but I stopped at the 6th term, since that is what you need.

Simplifying gives us:

$126(x^4)(32)$

and multiplying gives us:

$4032x^4$

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3 years ago

A furniture store purchased a sofa for $400. The store set the retail price at a 50% markup. When Karen purchases the sofa, she

andre [41]

Answer:

$648.

Step-by-step explanation:

$400+50% = $600

$600+8%=$648

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3 years ago

Dennis cutting 4.7 foot length of twine from a 240 foot spool of twine he needs to cut 42 lenghts and says that 45 feet of twine

larisa86 [58]

Sorry i had sent something wrong

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3 years ago

A house is purchased for $150,000 in 2002. The value of the house

Sunny_sXe [5.5K]

9514 1404 393

Answer:

$67,516

Step-by-step explanation:

"Depreciates" means the value is getting smaller. The function that describes the situation is a decay function:

y= a(1-r)^x

Here, a=150000, r = 0.07, and x=11. The value is predicted to be ...

y = 150000(1 -0.07)^11 = 150000(0.93^11) = 67,515.53

The house is worth about $67,516 in 2013.

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3 years ago