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2 years ago

Sammy factored the polynomial x2 + x - 6. She came up with the factors of

Mathematics

1 answer:

shepuryov [24]2 years ago

5 0

Answer:

(x+3) and (x-2) are the correct factors

Step-by-step explanation:

If we expand (x-3)(x-2), we see that it equates to x²-5x+6, which is not what we want. The correct factors would be (x+3)(x-2) since the middle term's coefficient becomes 1 as 3-2=1 whereas -3-2=-5.

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Recursive definitions for subsets of binary strings.Give a recursive definition for the specified subset of the binary strings.

dmitriy555 [2]

Answer:

Step-by-step explanation:

A binary string with 2n+1 number of zeros, then you can get a binary string with 2n(+1)+1 = 2n+3 number of zeros either by adding 2 zeros or 2 1's at any of the available 2n+2 positions. Way of making each of these two choices are (2n+2)22. So, basically if b2n+12n+1 is the number of binary string with 2n+1 zeros then your

b2n+32n+3 = 2 (2n+2)22 b2n+12n+1

your second case is basically the fact that if you have string of length n ending with zero than you can the string of length n+1 ending with zero by:

1. Either placing a 1 in available n places (because you can't place it at the end)

2. or by placing a zero in available n+1 places.

0 ϵ P

x ϵ P → 1x ϵ P , x1 ϵ P

x' ϵ P,x'' ϵ P → xx'x''ϵ P

3 0

2 years ago

GIVING BRAINLIEST Write a proportion that could be used to solve for each variable. Then solve. 7 pencils for $1.68 p pencils fo

Evgesh-ka [11]

The proportion that could be used to solve for the variable is:

$\frac{7}{1.68}=\frac{p}{2.88}$ ; p = 12 ⇒ b

Step-by-step explanation:

Direct proportion means that two (or more) quantities increase or decrease in the same ratio

y = k x is the equation of direct proportion, where k is the constant of proportionality
$\frac{y_{1}}{x_{1}}=\frac{y_{2}}{x_{2}}=k$ is the another way to write a proportion

The number of pencils and the cost of them is increased together or decreased together

∴ The number of the pencils and their costs are in direct proportion

- By using the 2nd rule above

∵ The cost of the 7 pencils is $1.68

∵ The cost of p pencils is $2.88

∴ $\frac{7}{1.68}=\frac{p}{2.88}$

The proportion that could be used to solve for the variable is: $\frac{7}{1.68}=\frac{p}{2.88}$

∵ $\frac{7}{1.68}=\frac{p}{2.88}$

- By using cross multiplication

∴ p × 1.68 = 7 × 2.88

∴ 1.68 p = 20.16

- Divide both sides by 1.68

∴ p = 12

The value of variable p is 12

Learn more:

You can learn more about the proportion in brainly.com/question/10708697

#LearnwithBrainly

8 0

3 years ago

what are some ideas to do with my parents in the house if we dont have a car? sorry i know this isnt a math question

nadya68 [22]

Baking, cooking, reading, playing games, watching movies, cleaning up can be nice, gardening

3 0

2 years ago

Can someone please answer this question

baherus [9]

The formula that we would use is the probability of both over the probability of the rain only.

P[Wind and Rain ] / P [Rain] = 0.35 / 0.65 = 0.538 = 54%

The answer is A.

3 0

2 years ago

Y = -3x + 1 <br> What is the y-intercept?

svetlana [45]

The y-intercept will be 1

4 0

2 years ago

Read 2 more answers