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
const2013 [10]
1 year ago
8

qrt{ - 64} " align="absmiddle" class="latex-formula">write the equation as a complex number

Mathematics
1 answer:
siniylev [52]1 year ago
7 0
A)9-8i

Explanation

9-\sqrt[]{-64}

Step 1

Let's remember that

A complex number is an object of the form

a+bi

where a and b are real numbers and

\begin{gathered} i^2=-1 \\ i=\sqrt[]{-1} \end{gathered}

so

\begin{gathered} 9-\sqrt[]{-64} \\ 9-\sqrt[]{-1\cdot64} \\ 9-\sqrt[]{-1}\sqrt[]{64} \\ 9-8\sqrt[]{-1} \\ 9-8i \end{gathered}

therefore, the answer is

A)9-8i

I hope this helps you

You might be interested in
A VW Bug is driving north on a straight two-lane road at a constant 38 mph and a Chevy Impala is driving south at 29 mph on the
vitfil [10]

Those two vehicles are chewing up a lot of ground. Do you drive? I know it's a stupid question. Every American drives, but I have to check. When you see a car coming towards you, does it look like it's going extremely slow, so that 9 could be the answer? Or does it look extremely fast so that 67 could be the answer? I think you should be looking at fast. I live in the country so when something comes towards me I take note of it. So you should be thinking the Impala sees the bug as going north and very fast..

B

Note. The 9 would come up when someone was passing you and they were going 9 mph faster than you were going. If you were going 50 mph and someone passed you at 59 mph. it would appear to you that they were only going 9 mph. Next time you encounter this on the road, see if you agree that that is the way it works.

3 0
4 years ago
21 lbs of potatoes cost $231. How much would 28 lbs cost?
bija089 [108]

Answer:

$308

Step-by-step explanation:

First, you have to find out how much it costs per pound, so you would divide 231 by 21. each pound of potatoes costs $11. so 11 x 28 would make it $308.

5 0
3 years ago
Read 2 more answers
Determine the measure of angle A, B, and C in triangle ABC. If m∠A=(x-10)°,m∠B=(2x-50)°,and m∠C=x°
Effectus [21]

Answer:

m∠A = 50°

m∠B = 70°

m∠C = 60°

Step-by-step explanation:

Determine the measure of angle A, B, and C in triangle ABC. If m∠A=(x-10)°,m∠B=(2x-50)°,and m∠C=x°

In a Triangle, the sum of the interior angles of a triangle = 180°

Step 1

We solve for x

Hence:

m∠A + m∠B + m∠C= 180°

(x-10)°+ (2x-50)°+ x° = 180°

x - 10 + 2x - 50 + x = 180°

4x - 60 = 180°

4x = 180° + 60°

4x = 240°

x = 240°/4

x = 60°

Step 2

Solving for each measure

x = 60°

m∠A=(x-10)°

= 60° - 10°

= 50°

m∠B=(2x-50)°

= 2(60)° - 50°

= 120° - 50°

= 70°

m∠C=x°

= 60°

7 0
3 years ago
Cual es el 20% de 75
ValentinkaMS [17]
20% de 75 es 50...<span>Es el iniciador</span>
4 0
3 years ago
Read 2 more answers
Which number line best shows the position of square root of 13?
BaLLatris [955]
I assume you mean one that is not rational, such as √2. In such a case, you make a reasonable estimate of it's position, and then label the point that you plot.
For example, you know that √2 is greater than 1 and less than 2, so put the point at about 1½ (actual value is about 1.4142).
For √3, you know the answer is still less than 4, but greater than √2. If both of those points are required to be plotted just make sure you put it in proper relation, otherwise about 1¾ is plenty good (actual value is about 1.7321).
If you are going to get into larger numbers, it's not a bad idea to just learn a few roots. Certainly 2, 3, and 5 (2.2361) and 10 (3.1623) shouldn't be too hard.
Then for a number like 20, which you can quickly workout is √4•√5 or 2√5, you could easily guess about 4½ (4.4721).
They're usually not really interested in your graphing skills on this sort of exercise. They just want you to demonstrate that you have a grasp of the magnitude of irrational numbers.
6 0
3 years ago
Other questions:
  • Simplify.
    15·1 answer
  • The function f(x) varies inversely with x and f(x) =6 when x =4 what time s f(x) when x = 8
    6·1 answer
  • Solve for X.<br> −68 &lt; 8x − 4 &lt; −36
    11·2 answers
  • Help me please thank you so much
    15·1 answer
  • The dimensions of a 7 -cm by 2 -cm rectangle are multiplied by 3 . how is the area affected ?
    6·1 answer
  • Need help with this pls!!<br> (Show work pls)
    7·1 answer
  • 10 POINTS<br><br>How do you find the absolute deviation of a data
    7·1 answer
  • Which of the following is best used to measure the distance between two large cities
    8·2 answers
  • Lines A and B are parallel<br>A<br>1/2<br>3/125°<br>B<br>5/6<br>7/8<br>m 6 = [ ?] ​
    14·1 answer
  • Help me with this 4 2/7÷1 1/4
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!