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3 years ago

Find the product and fill in the blanks to write in standard complex number form.

Mathematics

1 answer:

Semenov [28]3 years ago

7 0

Recall that i represents the square root of -1, so by squaring it we get -1.

(2 + 4i)(7 - 3i)

= 14 - 6i + 28i + 12
= 26 + 22i

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Find the value of y. Iog 2 32 =y Ο Ο OC. 6 Ο D. 7

Delicious77 [7]

Answer:

B 5

Step-by-step explanation:

log 2(32)

Replace 32 with 2^5

log2 (2^5)

We know that log a^b = bloga

5 log2(2)

We know that loga(a) =1

5*1

6 0

3 years ago

Question 1(Multiple Choice Worth 5 points)

Ket [755]

Well, to cover the whole bridge, is 6/6, or 1 whole

so hmmm $\bf \begin{array}{ccllll}
concrete&bridge\\
\textendash\textendash\textendash\textendash\textendash\textendash&\textendash\textendash\textendash\textendash\textendash\textendash\\
\frac{4}{5}&\frac{5}{6}\\\\
x&\frac{6}{6}
\end{array}\implies \cfrac{\frac{4}{5}}{x}=\cfrac{\frac{5}{6}}{\frac{6}{6}}\implies \cfrac{\frac{4}{5}}{\frac{x}{1}}=\cfrac{\frac{5}{6}}{\frac{6}{6}}$

$\bf \cfrac{4}{5}\cdot \cfrac{1}{x}=\cfrac{5}{6}\cdot \cfrac{6}{6}\implies \cfrac{4}{5x}=\cfrac{5}{6}\implies 4\cdot 6=5\cdot 5x\implies 24=25x
\\\\\\
\boxed{\cfrac{24}{25}}=x$

6 0

4 years ago

Read 2 more answers

Simplify a•a²•a³ of the following

professor190 [17]

Answer:

a^6

Step-by-step explanation:

when multiplying exponents, add the exponents together. you can distribute to prove it, a^2 is a•a, a^3 is a•a•a so by bringing it together you get a•(a•a)•(a•a•a) which gets a 6 times or a^6

5 0

4 years ago

Select the equivalent expression. (3^-8 • 7^3)^-2 =?

melomori [17]

I’m pretty sure answer is A and i’m

3 0

4 years ago

Read 2 more answers

Can someone please help me with this, btw don’t mind the white-out

inysia [295]

Answer:

x< 10

Step-by-step explanation:

To start the absolute difference between 20 and 5 is 15. Next, write out an equation for the problem:

x * 1.5 < 15,

Then divide by 1.5 on both sides...

Boom! x < 10.

7 0

3 years ago