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
Natali5045456 [20]
3 years ago
14

Pls??? I’ll help u if u help me!!!

Mathematics
1 answer:
il63 [147K]3 years ago
5 0

Answer: the answer is 21

Step-by-step explanation:

You might be interested in
URGENT! PLEASE HELP! 50 POINTS!
Vesnalui [34]
The answer would be D) The union of two nations who have a common purpose. 
7 0
3 years ago
In Problems 23–30, use the given zero to find the remaining zeros of each function
Talja [164]

Answer:

x =  2i, x = -2i and x = 4 are the roots of given polynomial.

Step-by-step explanation:

We are given the following expression in the question:

f(x) = x^3 - 4x^2+ 4x - 16

One of the zeroes of the above polynomial is 2i, that is :

f(x) = x^3 - 4x^2+ 4x - 16\\f(2i) = (2i)^3 - 4(2i)^2+ 4(2i) - 16\\= -8i+ 16+8i-16 = 0

Thus, we can write

(x-2i)\text{ is a factor of polynomial }x^3 - 4x^2 + 4x - 16

Now, we check if -2i is a root of the given polynomial:

f(x) = x^3 - 4x^2+ 4x - 16\\f(-2i) = (-2i)^3 - 4(-2i)^2+ 4(-2i) - 16\\= 8i+ 16-8i-16 = 0

Thus, we can write

(x+2i)\text{ is a factor of polynomial }x^3 - 4x^2 + 4x - 16

Therefore,

(x-2i)(x+2i)\text{ is a factor of polynomial }x^3 - 4x^2 + 4x - 16\\(x^2 + 4)\text{ is a factor of polynomial }x^3 - 4x^2 + 4x - 16

Dividing the given polynomial:

\displaystyle\frac{x^3 - 4x^2 + 4x - 16}{x^2+4} = x -4

Thus,

(x-4)\text{ is a factor of polynomial }x^3 - 4x^2 + 4x - 16

X = 4 is a root of the given polynomial.

f(x) = x^3 - 4x^2+ 4x - 16\\f(4) = (4)^3 - 4(4)^2+ 4(4) - 16\\= 64-64+16-16 = 0

Thus, 2i, -2i and 4 are the roots of given polynomial.

4 0
3 years ago
A sequence is defined recursively by the formula f(n+1)=-2f(n). The first term of the sequence is -1.5. Whis is the next term in
podryga [215]
We are told that f(1) = -1.5, and that f(n+1) = -2f(n).
                                                 Then: f(2) = -2f(1) = -2(-1.5) = +3 (answer)

3 0
3 years ago
Simplify Rewrite the expression in the form 5 ^ n. (5/10)/(5/12) =
Amiraneli [1.4K]

Answer:

5^{-2}

Step-by-step explanation:

5^{(10-12)}

5 0
3 years ago
Write the word sentence as an equation 8 is the quotient of a number g and 3 an equation that represents this word sentence is
Ket [755]
G (divided sign) 3 =8
4 0
3 years ago
Other questions:
  • ????????????????????
    5·2 answers
  • ______ numbers can be written as a product of _______ factors.This called the prime factorization of a number.
    13·1 answer
  • Simplify 36/90 need to no the steps the answer is 2/5 just need steps
    10·2 answers
  • 10x10x10 as an exponent
    15·2 answers
  • a chef used 1/4 of a bag of potatoes to make 1/9 of a gallon of stew. if he wanted to make a full gallon of stew how many bags o
    11·1 answer
  • 9 customers entered a store over the course of 18 minutes. At what rate were the customers entering the store in customers per m
    6·2 answers
  • Work out the area of this rectangle using a calclator and giving your answer as a mixed number
    11·1 answer
  • 5 divided by 1 and 1 4th<br><br><br> i need help
    12·1 answer
  • :)<br> which of the following is the solution to |x|+5≤1?
    11·1 answer
  • Type the correct answer in each box.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!