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
sergiy2304 [10]
3 years ago
11

Simplify the expression: (1 − 5i)(3 + 7i). 38 + 8i −32 + 8i 38 − 8i −32 − 8i

Mathematics
1 answer:
photoshop1234 [79]3 years ago
3 0
Your answer is 38-8i because what you do is 1 times 3 and get 3 then 1 times 7i and get 7i then you do -5i times 3 and you get -15i then -5i times 7i and you get -35i2 and the square will cancel out the negative and make it 35 then add that to the 3 and you get 38 then take the -15i +7i and get -8 do your answer is 38-8i
You might be interested in
An equilateral triangle can have angles that each measure 68° true or false
grandymaker [24]
FALSE! Any 3 angles of any triangle add up to 180 degrees. An equilateral triangle's angles should each be 60 degrees.
3 0
3 years ago
Read 2 more answers
PLEASE HELP NOW!!
kow [346]

Answer:

Point B is located where x is negative and y is positive.

Hope this helps!!

7 0
3 years ago
What is the value of x2+9x+20 when x could be -5, -3 or -6
ANTONII [103]

Answer:

Step-by-step explanation:

You should use a ^ to indicate an exponent. x^2 is the same as x².

x² + 9x + 20

Replace the x with (-5).

(-5)² + 9(-5) + 20 = 25-45+20 = 0

Then do the same with x = (-3):

(-3)² + 9(-3) + 20 = 9 - 27 + 20 = 2

You can do x = (-6)

3 0
3 years ago
The formula for the circumference of a circle is C = 2 pi r. Determine the circumference when the radius r is 10 cm.
liq [111]

Answer:

D 100cm

Step-by-step explanation:

6 0
3 years ago
Multiply. √3 ⋅ 2√2 ⋅ 5√8 ⋅ √18 Enter your answer, in simplest radical form, in the box.
kenny6666 [7]

Answer:

120√6

Step-by-step explanation:

Simplify the 5√8 to 2√2

simplify the √18 to 3√2

so it would be √3 * 2√2 * 5 * 2√2 * 3√2

when a square root of an expression is multiplied by itself:

√3 * 2 * 2* 5 * 2 * <em>3</em>√2

so as we calculate it, 2 * 2* 5 * 2 * <em>3</em> = 120 and √2 * √3 = 6


4 0
3 years ago
Read 2 more answers
Other questions:
  • What is the y-intercept of the equation of the line that is perpendicular to the line y = x + 10 and passes through the point (1
    7·1 answer
  • 72000 divided by what = 200
    13·1 answer
  • Is y^24 a perfect cube
    12·1 answer
  • The book fair is this week, and there's a special deal for teachers. For every 5 hardcover
    13·1 answer
  • Could 16,30,31 be the side lengths of a right triangle? Explain why?
    13·1 answer
  • |18-x|, if x&lt;18. Pls help
    11·1 answer
  • How to find the area of a square with radius 17 square root 2
    6·1 answer
  • What fraction of 16 is 12?<br>​
    14·1 answer
  • I PROMISE I WILL LET EVERYBODY KNOW WHAT GRADE I GET WHEN I KNOW
    11·2 answers
  • Y intercept (3,1) and (-4,-6)?​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!