1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nevsk [136]
3 years ago
8

Write the product (4 + i)(4 − i) in the form a + bi. A. 16 − i B. 16 − i2 C. 17 D. 8

Mathematics
1 answer:
bonufazy [111]3 years ago
3 0

Answer:

A.16–i is correct.

Step-by-step explanation:

(4+i)(4–i). [(a+b)(a–b)=(a²–b²)]

(4²–i²)=16–i

I hope this answer is correct so please vote my answer

You might be interested in
My brother insists that my answer is wrong so can anyone please answer this so I can show him​
LuckyWell [14K]

Answer:

30

Step-by-step explanation:

6/1 x 5/6 = 30/6 or 5.

5/1 divided by 1/6 is 5/1 x 6/1 or 30.

Therefore, the answer is 30.

5 0
2 years ago
Read 2 more answers
HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 14PTS!!!!!!!!!
sergey [27]
Option D is the correct answer.
When comparing two congruent triangles, you can look at the order of the letters to see which ones are congruent.
In this case, YES = NOT
YE = NO since both YE and NO are the first two letters.
3 0
3 years ago
Read 2 more answers
Please help me,ASAP​
pav-90 [236]

Answer:

b. They can both be 90 degree angles

c. Acute angles are by definition 90 degrees, and acute is less than but not equal to 90 degrees

d. should be always

e. should be never (explanation: they have to be adjacent to be supplementary, and vertical angles are never adjacent)

Step-by-step explanation:

8 0
3 years ago
Question 4 of 30
Gemiola [76]

Answer:

1/36

Step-by-step explanation:

prob of each dice is 1/6

=1/6 * 1/6

6 0
2 years ago
What is the relationship between the ratios?
castortr0y [4]
They are not proportional
5 0
3 years ago
Other questions:
  • Drag the correct steps into order to evaluate 42 + t/6 for t = 12.
    13·2 answers
  • 240-15m=200-5m <br> HELP ME
    12·2 answers
  • Simplify the expression: (− 2/3 pq^4)^2·(−27p^5q)
    10·1 answer
  • Find The Missing Term.
    13·2 answers
  • Please help please!!!!!
    10·1 answer
  • Simplify to create an equivalent expression.
    5·2 answers
  • Find the total cost of a $619.50 refrigerator if the sales tax rate on the purchase is 2.8?
    9·1 answer
  • There are many answers not just one. I need help
    6·2 answers
  • PICTURES BELOW!!! PLEASE HELP!! XTRA POINTS TO CORRECT ANSWER!!!
    15·1 answer
  • -3x+7=28 what am i supposed to do once i get it to be -3x=21
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!