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Vlad [161]
3 years ago
6

Simplify the expression (8+i)(2+7i)

Mathematics
1 answer:
Rus_ich [418]3 years ago
4 0

Given : (8 + i)(2 + 7i)

⇒ (8 × 2) + (8 × 7i) + (i × 2) + (i × 7i)

⇒ 16 + 56i + 2i + 7i²

We know that i² = -1

⇒ 16 + 58i + 7(-1)

⇒ 16 + 58i - 7

⇒ 9 + 58i

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Please show work* . i don't get how to do this at all
kiruha [24]
3/3 - 1/3 = 2/3 = 0.6667

7 0
3 years ago
Le help needed with like terms and distributive property
Rashid [163]
Like terms would be taking all of the ones with a and getting them alone, all of the ones with b alone, and all plain numbers alone to simplify

1) 2a+3-5a+8b
****= -3a+8b+3****
take 2a-5a and that is your answer

2) 6a+rs-4a+6rs
=2a+rs+6rs
combine the a's 6a-4a
****=2a+7rs****
1rs+6rs combine rs's and that's it :)

**** is the answers
6 0
3 years ago
Find the value of the expression<br> b + 1 + c + 6<br><br> for b = 4 and c = 9.
bearhunter [10]
The answer is 20 because you are adding 4 + 1 + 9 + 6= 20
7 0
3 years ago
Read 2 more answers
Can i have help please. Step by step
nignag [31]

Answer: It's in the step-by step explanation

Step-by-step explanation:

I just learned about this too. I'll use what I know to help you out.

According to whatever law of the circle, where you have two intersecting lines within the bounds of a circle(that'd be TQ and SW), the product of the divided segments will equal each other.

So to put that in terms, TU times QU = SU times WU.

So let's get the value of segment TU, which is 1.5

Then let's get the value of segment of QU, which is 4.

Now let's get the value of WU, which is 3. We don't know what SU is yet. So put it in algebraic form.

1.5(4)=3x

6=3x

2=x

bon appetit

6 0
3 years ago
Read 2 more answers
PLS HELP ASAP PLSSS PLSSS FIRST CORRECT ANSWER GETS BRAINLIEST PLS ANSWER ​
anzhelika [568]

Answer:

√(23)

Step-by-step explanation:

The Pythagorean Theorem is a² + b² = c²

so...

a = 7

b = 3

7² + 3² = c²

14 + 9 = c²

√(23) = c

PLEASE RATE!! I hope this helps!!

If you have any questions let me know

7 0
2 years ago
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