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irinina [24]
3 years ago
14

Simplify and write the complex number in standard form 4i(7+6i)+2i(5-2i)

Mathematics
2 answers:
Stella [2.4K]3 years ago
6 0

Answer:

-20+38i

Step-by-step explanation:

Hope this will help you

Bezzdna [24]3 years ago
3 0

Answer:

20i² + 38i

Step-by-step explanation:

4i(7+6i)+2i(5-2i)

28i + 24i² + 10i - 4i²

24i² - 4i² + 28i + 10i

20i² + 38i

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zaharov [31]
Ignore what is scribbled out but I hope this helps!

5 0
3 years ago
The price s of a pair of shoes plus 5% sales tax
zzz [600]

An expression for that would be s + 0.05s, or 1.05s.

3 0
3 years ago
The sum of a number and its additive inverse is equal to?
Usimov [2.4K]
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8 0
3 years ago
The Spanish club began the year with $15.00 in its account. At the end of their candy sale fundraiser,the club had 654.75.How mu
Anit [1.1K]
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3 0
3 years ago
Find the Area of this figure.
grin007 [14]

Answer:

158 m²

Step-by-step explanation:

I made this into 3 rectangles.

Figure 1:

9•8=72

The 9 is from the 13 m side, but I've taken 4 m off from the overlapping square.

Figure 2:

6•7=42

The 7 is from the 10 m side, but I've taken 4m off from the overlapping square again.

Remaining Area:

If you extend the lines into figures 1 and 2 from the top left corner and bottom right corner vertically, you will get a rectangle that is (11 m) x (4 m). This is not yet accounted for.

11•4=44

Add together: 72 + 42 + 44 = <u>158</u>

*Note: You could also find the area of the squares a much easier way by subtracting the overlapping part after finding the area of both figures , but this is how I did it*

5 0
2 years ago
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