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
Sergeeva-Olga [200]
3 years ago
5

X^4 − 3x^2 − 90 x= -3

Mathematics
1 answer:
Ahat [919]3 years ago
8 0

Answer:

-36

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

x⁴ - 3x² - 90

x = -3

<u>Step 2: Evaluate</u>

  1. Substitute in <em>x</em>:                                                                                                  (-3)⁴ - 3(-3)² - 90
  2. Exponents:                                                                                                        81 - 3(9) - 90
  3. Multiply:                                                                                                             81 - 27 - 90
  4. Subtract:                                                                                                            54 - 90
  5. Subtract:                                                                                                            -36
You might be interested in
A rectangle is 6m wide and 11m long. How long is the diagonal of the rectangle?
Svet_ta [14]

Answer:

≈12.53

Step-by-step explanation:

7 0
3 years ago
X-4=<br> x−4=<br> \,\,-4+x<br> −4+x
earnstyle [38]
I believe the answer should be -4+x= -4x.
I hope this helps :)
7 0
1 year ago
Quick what’s the answer
GaryK [48]
Use the Pythagorean Theorem of a² + b² = c² to solve for x. 

x² + (x + 3)² = (√117)²
x² + x² + 6x + 9 = 117
2x² + 6x + 9 = 117
2x² + 6x + 9 - 117 = 0
2x² + 6x - 108 = 0
2x² + 18x - 12x - 108 = 0
2x(x + 9) - 12(x + 9) = 0
(2x - 12)(x + 9) = 0

x = - 9, 6

Length cannot be negative so you can't use - 9. 

x = 6. Option C is your answer. 
6 0
3 years ago
Read 2 more answers
What is the volume of a sphere that has a 12m diameter?
lesya [120]
Volume of Sphere = (4/3)*(pi)*(r^3)
 
                            r = (D/2) = 6 m
                        
                              =<span>(4/3)*(pi)*((6^3)

                              = 904.7786.. m^3
I hope this helps.</span>
5 0
3 years ago
Help me please idk how to do it
frozen [14]
You do £68.85 - £15.30= (the answer)
Then you do the answer of that divided by 0.85
5 0
3 years ago
Other questions:
  • What angle do the minute and hour hands make at 4:30??
    13·1 answer
  • Which expression is equivalent to 3 (4x - 5)?
    6·1 answer
  • Ben bought 12 pounds of apples for $6?use the ratio table to find cost of buying 3 pounds of apples
    5·1 answer
  • A turtle moves an an average speed of 12 inches/hour. How long does it take the turtle to travel 8 inches?
    15·1 answer
  • The sum of four consecutive intergers is 8 What are the intergers
    10·2 answers
  • Select the reason why these triangles are
    15·1 answer
  • Need help with geometry
    14·1 answer
  • What effect does the following line have on the poem?
    15·1 answer
  • Find the sum. <br> (- 7/2 z + 4) + (1/5 z - 15)<br> HELPPP
    14·1 answer
  • How many solutions exist for the system of equations in the graph?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!