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
Marrrta [24]
2 years ago
14

Please help!

Mathematics
2 answers:
Snezhnost [94]2 years ago
4 0

-9i(-9i+4)+3(8+8i)


Use the distributive property to remove the parenthesis:


-9i * -9i = 81i^2

-9i x 4 = -36i

3x8 = 24

3x8i = 24i

Now you have 81i^2 - 36i + 24 + 24i


i^2 = -1


Now you have 81 x -1 - 36i + 24 + 24i


-81 +24 = -57

-36i +24i = -12i


Final answer = -57 - 12i


The answer is D.

Igoryamba2 years ago
3 0

Answer:

D

Step-by-step explanation:

You might be interested in
Write the phrase as an equation /
Vilka [71]

Answer:

4 = 20 + n, where n is the number

Step-by-step explanation:

Here are a few key words to use when converting words to an equation

"is": =

"more": +

"less": -

"more than", "greater than": >

"less than": <

4 0
2 years ago
Read 2 more answers
in Math class we are Learning about Pi which equals 3.14 how do you find the diameter and radius i dont understand it can you gu
kirill [66]
If you're finding diameter or radius based on circumference, use the formula C = πd. You would divide the circumference by pi to get the diameter, then divide the diameter by 2 to get the radius.

If you're finding diameter or radius based on area, use the formula A = πr^2. You would divide the area by pi, then find the square root of that value which is the radius. Just multiply the radius by 2 to find diameter.
7 0
2 years ago
Help me please!!!! 14 point reward + brainiest
lisabon 2012 [21]

Answer:

D

Step-by-step explanation:

The area of triangle is 1/2BH

Jaret has the info on his base and height

8 0
2 years ago
Read 2 more answers
Solve.<br> x<br> __<br> 2 = 7<br> ----------------------------------------<br> PLEASE HELP!
galina1969 [7]
\frac{x}{2} = 7\\\\\frac{x}{2} \times 2 = 7\times2\\\\\boxed{x=14}
5 0
3 years ago
Given m||n, find the value of x.<br> m<br> t<br> (5x-5)<br> (6x-27)
almond37 [142]

Step-by-step explanation:

due to the laws of symmetry of the angles of 2 crossing lines (and parallel lines are simply repeating and mirroring these angles), both angles must be equal.

5x - 5 = 6x - 27

-5 = x - 27

x = 22

4 0
2 years ago
Other questions:
  • Please help, if able! 10 points up^^
    11·1 answer
  • <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B%20%5Csqrt%7B-4%7D%20%7D%7B%283%2B1%29-%282%2B3i%29%7D%20" id="TexFormula1" title
    12·1 answer
  • Which equation is not a linear equation?
    6·1 answer
  • Round 125.6 to the nearest 10th
    10·1 answer
  • Does anybody know the answer to this question? (26/13) x (-7)+14-4
    13·1 answer
  • The diagram below shows a square inside a regular octagon. The apothem of the octagon is 18.11 units to the nearest square unit
    6·1 answer
  • On a city map, 2 inches represents 10 miles. The library and the bank are 5 inches apart on the map. What is the actual distance
    11·1 answer
  • In 2 days 20 hours a watch gains 20 seconds find how much time the watch will take to gain 35 seconds ??
    15·2 answers
  • Can someone pls help
    6·1 answer
  • Someone answer this asap pls lots of points
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!