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AnnZ [28]
3 years ago
5

What is the answer to this problem

Mathematics
1 answer:
castortr0y [4]3 years ago
3 0

Answer:

red

Step-by-step explanation:

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A card is drawn from a standard 52-card deck. what is the probability that the card is a club, or that the card is a red-suited,
BigorU [14]
The answer to your question  is 2/26
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Identify the like terms in this expression: 4x^2 + 2x - 6x + 3y
Kamila [148]

Answer:

the like terms here are the x and the + symbol.

Step-by-step explanation:

If a part of the equation appears more than once that is a like term.

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Tony borrows $7,000 from a friend
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Read 2 more answers
Find a recursive formula for the sequence:<br><br> 1, -1, -7, -25
Mumz [18]
<h3>Answer:</h3>

a_n=3a_{n-1}-4

<h3>Step-by-step explanation:</h3>

<em>Try the answers</em>

You can try the answers to see what works. You can expect all of the choices to match the first two terms, so try some farther down. Let's see if we can get -25 from -7.

a) 3*(-7) -4 = -21 -4 = -25 . . . . this one works

b) -7 -2 = -9 . . . . ≠ -25

c) -3(-7) +2 = 21 +2 = 23 . . . . ≠ -25

d) -2(-7) +1 = 14 +1 = 15 . . . . ≠ -25

The formula that works is the first one.

_____

<em>Derive it</em>

All these formulas depend on the previous term only, so we can write equations that show the required relationships. Let the unknown coefficients in our recursion formula be p and q, as in ...

a_n=p\cdot a_{n-1}+q

Then, to get the second term from the first, we have

... 1·p +q = -1

And to get the third term from the second, we have

... -1·p +q = -7

Subtracting the second equation from the first gives ...

... 2p = 6

... p = 3 . . . . . . . this is sufficient to identify the first answer as correct

We can find q from the first equation.

... q = -1 -p = -1 -3 = -4

So, our recursion relation is ...

a_n=3a_{n-1}-4

6 0
3 years ago
What is a/b if a-b=2
ad-work [718]

Answer:

Step-by-step explanation:

2+b/ b pretend this is a fraction

6 0
3 years ago
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