HELP ASAP I WILL GIVE 100 POINTS AND BRAINIEST

Mathematics

1 answer:

Georgia [21]3 years ago

6 0

1/10 is your answer to the question

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Please help me how to multiply

Travka [436]

$Use:(a-b)^2=a^2-2ab+b^2\\-------------------------------\\\\(9-6i)^2=9^2-2\cdot9\cdot6i+(6i)^2=81-108i+36i^2\\\\=81-108i+36(-1)=81-108i-36=45-108i\\\\-------------------------------\\\\i=\sqrt{-1}\to i^2=1$

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3 years ago

Read 2 more answers

Evaluate the expression (x^2-2x)(3x^2+4x-7)

Troyanec [42]

Answer: 3x^4-2x^3- 15x^2+14x

Step-by-step explanation:

You should just multiply the two values together.

7 0

3 years ago

suppose that 12 different people call you in a week. what is the probability you will get at least one phone call per day (assum

lions [1.4K]

Yes, you are doing a great job keep going! You can do this!

3 0

1 year ago

Does anyone know the answer to this?

PolarNik [594]

Answer:

(B) The exponents should be subtracted by the quotient rule of exponents

Step-by-step explanation:

Let's examine how this was solved.

$(\frac{4^2 4^3}{4^{-5}})^2$

He first rose everything in the parentheses to the second power, which is just multiplying all the exponents by 2. This is correct.

$\frac{4^4 4^6}{4^{-10}}$

He then combined the numerator exponents. Exponent rules say that $a^b \cdot a^c = a^b+c$ , so he should have ended up with $4^{10}$ , which he did. This is correct.

$\frac{4^{10}}{4^{-10}}$

Now, what he did in the final step is wrong. He added the exponents. However, exponent rules tell us that when we have $\frac{a^b}{a^c}$ , it equals $a^{b-c}$ .