2 years ago

Write the product 3i(5 - 3i) in the form a + bi.

Mathematics

1 answer:

stiks02 [169]2 years ago

3 0

Answer:

9+15i

Step-by-step explanation:

You might be interested in

Which of the following employees has the latest gross pay

devlian [24]

<span>Employee D: Total employee benefits $3,000
Total job benefits $52,300</span>

3 0

3 years ago

Marking brainliest for best answer and extra points

kumpel [21]

Answer:

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

4(3+2x) + 2 = 46 , solve for x I need help I'm a bit confused

Reil [10]

Answer:

x=4

Step-by-step explanation:

4(3+2x)+2=46

12+8x+2=46

12+8x=44

8x=32

x=4

8 0

2 years ago

Read 2 more answers

What number must be added to the expression below to complete the square?

stiv31 [10]

D. 1/4

Explanation:

a perfect square is written in the form

$(x+a)^2 = x^2 + 2ax +a^2$ (1)

In our problem, we have this perfect square:

$x^2 - x + C$ (2)

with C being unknown. However, by comparing (1) and (2), we know that

$2a=-1$

So, we find

$a=-\frac{1}{2}$

and therefore, the missing term must be

$a^2 = \frac{1}{4}$

so the complete square is

$x^2 -x +\frac{1}{4}$

7 0

2 years ago

Read 2 more answers

The angle of the elevation of the sun is 34 degrees. Find the length, l, of a shadow cast by a tree that is 53 feet tall. Round

gulaghasi [49]

$\tan{34^o}= \frac{53}{x} 
\\
\\x= \frac{53}{\tan{34^o}} 
\\
\\x \approx 78.58$

8 0

3 years ago