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
denpristay [2]
2 years ago
10

The product of two numbers is 41. One of the numbers

Mathematics
1 answer:
shepuryov [24]2 years ago
3 0
<h3>Answer:   5 - 4i     (choice A)</h3>

===================================================

Work Shown:

x = the other number

(5+4i)*x = 41

x = 41/(5+4i)

x = 41*(5-4i)/( (5+4i)*(5-4i) ) ..... see note below

x = 41*(5-4i)/( 41 )

x = (41/41)*(5-4i)

x = 5 - 4i  

As a way to check, (5+4i)*(5-4i) = 5^2+4^2 = 25+16 = 41

The rule used is (a-bi)(a+bi) = a^2 + b^2

-----------

Note:  I multiplied top and bottom by (5-4i) to get rid of the imaginary term in the denominator.

You might be interested in
Question is in the picture. Please help
irakobra [83]

BD = AC Given. BD cuts AC in half. That's what bisectors do.

BD = BD Reflexive property of a line (it is always equal to itself).

<ADB = <ADC = 90o

DB is perpendicular to AC Given.

<ADB + <ADC = 180o The two are supplementary.

Each angle = 90o Perpendicular means that one line meets another at 90o

2x = 180

x = 90o

Since each of the enclosed angles = 90, two have two triangles congruent by SAS <<<< Answer

4 0
3 years ago
Yˆ=2.391x+57.420 which number is the y intercept?
BaLLatris [955]

Answer:

57.420

Step-by-step explanation:

The y intercept is always the number on the out side next to the slope which is 2.391

8 0
3 years ago
Read 2 more answers
Abc + def how many terms and factors
Kipish [7]
This expression has three terms: the variables x, y, and z. We say that the first term is x, that the second term is y, and so on. This expression also has three terms: the number 7, the function f(x), and the variable a.
3 0
3 years ago
Is -76.15 an interger
natulia [17]

An integer is a natural number (1, 2, 3 ...), zero, or the negative of a natural number.


-76.15 is none of those,


Answer: NO



5 0
3 years ago
Read 2 more answers
HELP 60 PTS Write ln⁡〖(a^2 b^3)/cd〗 in expanded form. SHOW ALL WORK TO RECEIVE CREDIT.
Vinil7 [7]

Answer:

\frac{(a*a)(b*b*b)}{c*d}

Step-by-step explanation:

\frac{a^{2} * b^{3}}{cd}

A number to an exponent is the number times itself. A number to the "n"th power would be that number times itself "n" times.

This means that the fraction above could also be expressed as;

\frac{(a*a)(b*b*b)}{c*d}

If these parameters, "a", "b", "c", and "d" are given a value, then one can solve this equation.

6 0
2 years ago
Other questions:
  • How do I do this don’t understand it?
    12·1 answer
  • . If IQ scores are normally distributed with a mean of 100 and a standard deviation of 5, what is the probability that a person
    11·1 answer
  • Which inequality would result in the shaded solution on the unit circle to the right?
    10·1 answer
  • A number cube has sides that are labeled 1 to 6. Jamal rolls the number cube. What is the probability that he will roll a 22?
    7·1 answer
  • What is the slope of the line graphed below? (3,3) (0,-6)
    10·2 answers
  • Combine these radicals.
    13·1 answer
  • Write a ratio to show the
    13·1 answer
  • Find the volume<br> of a cylinder that<br> has a diameter of<br> 8 inches and is<br> 20 inches tall.
    5·1 answer
  • Arianna correctly simplified an expression. When she substituted mc020-1. Jpg into the simplified expression, the value was â€"4
    11·1 answer
  • Plz help its just math
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!