2 years ago

Solve the equation and express each solution in a + bi form. X^4-8x^2-48=0

Mathematics

2 answers:

STALIN [3.7K]2 years ago

4 0

Step-by-step explanation:

x⁴ − 8x² − 48 = 0

(x² + 4) (x² − 12) = 0

x = ±2i, x = ±√12

defon2 years ago

3 0

Answer:

B. on edge

Step-by-step explanation:

You might be interested in

If w is a string of english letters a–z (all uppercase for the purposes of this problem), let wr denote the reverse of w; (train

Dennis_Churaev [7]

Answer:

$f(x)=\left \{\begin{array}{rl}26^{\frac{k}{2}}&\text{for k even}\\26^{\frac{k+1}{2}}&\text{for k odd}\end{array}\right.$

Step-by-step explanation:

Half the length of the palindrome can be any possible sequence of the 26 available letters. The other half is constrained to be the reverse of the same sequence. For odd length sequences, the middle letter can be any of the 26.

So, for k even, the number of palindromes is 26^(k/2). For k odd, the number is 26·26^((k-1)/2) = 26^)((k+1)/2).

5 0

3 years ago

The value of y is directly proportional to the value of x If y=81 when x=54, what is the value of y when x=38

Arisa [49]

Answer:

y = 57

Step-by-step explanation:

y α x

y = kx ; k = Constant of proportionality

81 = k* 54

k = 81/54

k = 1.5

Value of y when x = 38

y = kx

y = 1.5 * 38

y = 57

Hence, y = 57 when x = 38

5 0

2 years ago

A jar of marbles contains the following: two purple marbles, four white marbles, three blue marbles, and two green marbles. What

geniusboy [140]

Answer:

4/11

Step-by-step explanation:

There are 11 marbles in total, if 4 of them are white, then you have a 4/11 chance of getting a white marble.

6 0

2 years ago

Read 2 more answers

Which is a true statement about the hypotenuse of a right triangle?

Lynna [10]

Correct answer is D.

7 0

2 years ago

If the point (3,4) lies on the graph of the equation 3y=ax+7 ,find the value of a

Daniel [21]

3y = ax + 7

3(4) = a(3) + 7

12 = 3a + 7

3a = 5

a = 5/3

5 0

2 years ago