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Alja [10]
3 years ago
13

Need Help

Mathematics
1 answer:
EastWind [94]3 years ago
4 0
1)\ 21x^3-18x^2y+24xy^2=3x(7x^2-6xy+8y^2)\\\\2)\ a^2+7a-18=a^2+9a-2a-18=a(a+9)-2(a+9)\\=(a+9)(a-2)\\\\3)\ b^2+8b+7=b^2+b+7b+7=b(b+1)+7(b+1)\\=(b+1)(b+7)\\\\4)\ 4f^2-64=4(f^2-16)=4(f^2-4^2)=4(f-4)(f+4)\\\\5)\ 9x^2+25-not\ factorable

6)\ 8j^3k-4jk^3-7-not\ factorable\\\\8)\ 2ak-6a+k-3=2a(k-3)+1(k-3)=(k-3)(2a+1)\\\\9)\ y^2+18y+81=y^2+2y\cdot9+9^2=(y+9)^2=(y+9)(y+9)
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Determine whether the function below is an even function, an odd function, both, or neither.
Kipish [7]

Answer:

Even Function

Solution:

For an even function:

f(x) = f(-x)

For an odd function:

f(x) = -f(x)

Since f(-x) = f(x), the given function is an even function.

6 0
3 years ago
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Lauren has started a business baking cupcakes. It takes one minute to frost each batch. How many will it take her and 4 friends
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3 years ago
A binomial probability experiment is conducted with the given parameters. Compute the probability of x successes in the n indepe
Naddik [55]

Answer:

P (X ≤ 4)

Step-by-step explanation:

The binomial probability formula can be used to find the probability of a binomial experiment for a specific number of successes.  It <em>does not</em> find the probability for a <em>range</em> of successes, as in this case.

 

The <em>range</em> "x≤4" means x = 0 <em>or</em> x = 1 <em>or </em>x = 2 <em>or</em> x = 3 <em>or</em> x = 4, so there are five different probability calculations to do.

 

To to find the total probability, we use the addition rule that states that the probabilities of different events can be added to find the probability for the entire set of events only if the events are <em>Mutually Exclusive</em>. The outcomes of a binomial experiment are mutually exclusive for any value of x between zero and n, as long as n and p don't change, so we're allowed to add the five calculated probabilities together to find the total probability.

 

The probability that x ≤ 4 can be written as P (X ≤ 4) or as P (X = 0 or X = 1 or X = 2 or X = 3 or X = 4) which means (because of the addition rule) that P(x ≤ 4) = P(x = 0) + P(x = 1) + P (x = 2) + P (x = 3) + P (x = 4)

Therefore, the probability of x<4 successes is P (X ≤ 4)

3 0
3 years ago
I’ll give thanks and five star and brainliest
Luba_88 [7]

QUESTION:

When you factor a little perfect square trinomial, which pattern results?

ANSWER:

[2] The square of a binomial pattern.

EXPLANATION:

<u>Squaring a binomial creates a perfect square trinomial</u>:–

  • (a + b)²
  • (a - b)²
8 0
3 years ago
Help me please!!!!!!!!!!!!!!!
shutvik [7]

Answer:

12 20 15

Step-by-step explanation:

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3 years ago
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