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
Molodets [167]
2 years ago
7

What is the product of 7-8i

Mathematics
1 answer:
SSSSS [86.1K]2 years ago
7 0
The product 78  - 112i
You might be interested in
6) (after 2.3) Consider the infinite system of linear equations in two variables given by ax + by = 0 where (a, b) moves along t
Paraphin [41]

Answer:

Step-by-step explanation:

Given infinite system of linear equations is ax + by = 0

when (a,b) moves along unit circle in plane.

a) system having unique system (0, 0)

Since two of equation in thus system will be

1.x+0.y=0\\x=0

and

0.x+1.y=0\\y=0

It is clear that x = 0, y= 0 is the only solution

b) Linear independent solution in this system gives some set of solutions

1.x+0.y=0\\\x=0

and

0.x+1.y=0\\y=0

Vector form is

\left[\begin{array}{ccc}1&0\\0&1\end{array}\right] =I

c) for this equation if add 0x +0y = 0 to system , Nothing will change

Because [0,0] satisfies that equation

d) If one of the equation is ax + by = 0.00001

where 0.00001 is small positive number

so, the system will be inconsistent

Therefore, the system will have no solution.

6 0
3 years ago
Solve for x in the equation x^2+4x-4=8
quester [9]
I will get you started.

x^2+4x-4 = 8

x^2 + 4x - 4 - 8 = 0

x^2 + 4x - 12 = 0

You must now use the quadratic formula.

In the formula, a = 1, b = 4, and c = -12.

Take it from here.
8 0
2 years ago
4p + 8 - 3p - 2
kozerog [31]
Well that friend should write p + 6 after combining like terms and simplifying
6 0
1 year ago
A line is represented by the equation y = 3x - 6. Which is a coordinate of a
Furkat [3]

Answer:

(2,0)

Step-by-step explanation:

Simply plug in the coordinates. y= 3x - 6, so in this case 0= 3(2) - 6 or 0=0, making the point on the line. If the equation is not true like when using (0,3) and getting 3= -6, then the point is not on the line.

6 0
2 years ago
The cost of painting the total outside surface of a closed cylindrical tank at 60 paise per meter squae is Rs237.60. The height
valkas [14]

Answer:

volume=509.25 dm^{3}

Step-by-step explanation:

Curved surface area=\frac {237.6}{0.6}=396 dm^{2}=2\pi R(R+H) where R is radius and H is height

Since H=6R then curved surface area=2\pi R(R+6R)=14\pi R^{2}

Therefore,  

396 dm^{2}=14\pi R^{2} and making R the subject

R=\sqrt {\frac {396}{14\pi}}=\sqrt {(9.003622)}= 3.000604 m

Therefore, H=6R=6*3.000604=18.00362 m

Volume=\pi R^{2}H=\pi*3.000604^{2}*18.00362=509.2453 dm^{3}

Therefore, volume=509.25 dm^{3}

6 0
2 years ago
Other questions:
  • 9. Find the area of each figure to the nearest tenth.
    10·2 answers
  • Please answer the question in the picture. Ty
    7·1 answer
  • One tank holds 350 gallons another tank holds 700 what's the average of both tanks
    6·2 answers
  • A polling firm is conducting research on Internet use by calling the landline telephone of every tenth person listed in a local
    14·1 answer
  • 1. Choose the best property to fill in the blank:
    10·1 answer
  • Any help to solve these, I would really appericiate it!
    13·2 answers
  • The number of flowers, f, that a gardener can plant along a border of a garden varies inversely with the distance d (in inches)
    15·1 answer
  • Which image shows a translation of the green quadrilateral three units to the right and one unit down?
    6·1 answer
  • What is the average of 2 1/3 and 3 1/2
    9·2 answers
  • The __________ is a measure of dispersion that is used in constructing confidence intervals for the mean and in evaluating resea
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!