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
OlgaM077 [116]
2 years ago
8

 first correct answer will be marked as branders please help fast

Mathematics
2 answers:
Nadusha1986 [10]2 years ago
8 0

Answer:

see explanation

Step-by-step explanation:

Evaluate u for each value of n by substituting value of n into u, that is

n = - 1 → u = - 5(- 1)² + 4(- 1) = - 5(1) - 4 = - 5 - 4 = - 9

n = 0 → u = - 5(0)² + 4(0) = 0 + 0 = 0

n = 1 → u = - 5(1)² + 4(1) = - 5 + 4 = - 1

n = 2 → u = - 5(2)² + 4(2) = - 5(4) + 8 = - 20 + 8 = - 12

Thus

   n          u

   - 1         - 9

     0          0

      1          - 1

      2          - 12

 

Svetllana [295]2 years ago
4 0

Answer:

even if the first answer is wrong? Just kidding, the first one is -9, second is 0, third is 9, and last is 18

Step-by-step explanation:

-9

0

9

18

You might be interested in
HELP PLSSS MARKING BRAINLIST!
schepotkina [342]

Answer:

B

Step-by-step explanation:

4 0
3 years ago
Round each number to the place of the underlined digit.
miv72 [106K]

9514 1404 393

Answer:

  11) 14

  12) 390

  13) 0.5

  14) 497

  15) 496

  16) 1857.21

Step-by-step explanation:

If the digit to the immediate right of the underlined digit is 5 or greater, then the underlined digit is increased by 1 (carrying to higher digits, if necessary). Digits to the right of the underline digit are dropped, or replaced with zero (if they are left of the decimal point).

8 0
2 years ago
2x^2-4x=t solve for t
Archy [21]

Answer:

2 {x}^{2}  - 4x = t \\ t = 2x(x - 2)

6 0
3 years ago
Given the complex number z_1=3\big(\cos \frac{14\pi}{15} +i\sin \frac{14\pi}{15}\big)z 1 ​ =3(cos 15 14π ​ +isin 15 14π ​ ) and
mars1129 [50]

The product of <em>z₁ =</em> 3 · (cos 14π/15 + i · sin 14π/15) and <em>z₂ =</em> 3 √3 · (cos 11π/15 + i · sin 11π/15) in <em>rectangular</em> form with fully simplified expressions is <em>z₁ · z₂ =</em> 7.794 - i · 13.5.

<h3>How to determine the product of two complex numbers</h3>

Let be two numbers of the form <em>z = a + i · b</em>, where <em>i =</em> √-1, the product of two of these numbers in <em>rectangular</em> form is described by the following formula:

<em>z₁ · z₂ = (a + i · b) · (c + i · d) = (a · c - b · d) + i · (a · d + b · c)</em>   (1)

If we know that a = 3 · cos 14π/15, b = 3 · sin 14π/15, c = 3√3 · cos 11π/15, d = 3√3 · sin 11π/15, then the result in rectangular form is:

<em>z₁ · z₂ =</em> 7.794 - i · 13.5

The product of <em>z₁ =</em> 3 · (cos 14π/15 + i · sin 14π/15) and <em>z₂ =</em> 3 √3 · (cos 11π/15 + i · sin 11π/15) in <em>rectangular</em> form with fully simplified expressions is <em>z₁ · z₂ =</em> 7.794 - i · 13.5. \blacksquare

<h3>Remark</h3>

The statement presents typing mistakes and is poorly formatted, the correct form is introduced below:

<em>Given the complex number z₁ = 3 · (cos 14π/15 + i · sin 14π/15) and z₂ = 3 √3 · (cos 11π/15 + i · sin 11π/15), express the result of z₁ · z₂ in rectangular form with fully simplified fractions and radicals.</em>

<em />

To learn more on complex numbers, we kindly invite to check this verified question: brainly.com/question/10251853

8 0
2 years ago
Please hurry simplify the expression (15^1/5)^5
Lelu [443]

Answer:

15

Step-by-step explanation:

using the rule of exponents

(a^m)^{n} = a^{mn}

(15^{\frac{1}{5)} } ^{5} = 15^{(1/5(5))} = 15^{1} = 15


5 0
2 years ago
Other questions:
  • [x] + 10 + 1 answer algebraically
    15·1 answer
  • Beatriz purchases a sweater that cost $24.99 and seles tax8%. What is the total cost?
    12·2 answers
  • 2. What are two other ways to name p.
    9·1 answer
  • Solve and how to solve 25+2(n+2)=30​
    6·2 answers
  • 25% of what number is 30.2? i need help solving.​
    8·2 answers
  • A statistics instructor designed an exam so that the grades would be roughly normally distributed with a mean of and a standard
    8·1 answer
  • An angel measures 51 degrees. Through what fraction of a circle does the angel turn?
    15·1 answer
  • The side lengths of a square are each 5q. By adding 3 to the length and subtracting 3 from the width, a rectangle is made. What
    15·1 answer
  • Choose the most appropriate answer.
    13·1 answer
  • What is 6.30 divided by 18
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!