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
Vikentia [17]
3 years ago
8

Solve x4 − 7x2 − 18 = 0

Mathematics
2 answers:
babunello [35]3 years ago
5 0
Thw answer is X = 3 or -3
Andrew [12]3 years ago
3 0

Answer:

the answer is ​

x=±3,±√​2

​

​​ ı

Step-by-step explanation:

(x​^2−9)(x​2+2)=0

You might be interested in
Find the unit price for each option shown below. Round to the nearest cent when necessary. Option I: 10 candy bars for $6.75 Opt
natita [175]
Option I: 10 candy bars for $6.75 

<span>6.75/10 = 0.68 </span>

<span>Option II: 12 candy bars for $7.25 </span>

<span>7.25 / 12 = 0.60 </span>


6 0
3 years ago
Read 2 more answers
Find the zeros of the polynomial function.
Ahat [919]
◆ QUADRATIC EQUATIONS ◆

given \: equation \: is \: , \\  \\  {x}^{2}  - 12x + 20 = 0 \\  \\  using \: quadratic \: formula \: , \\  \\ x =  \frac{ - b +  \sqrt{ {b}^{2} - 4ac } }{2a}  \:  \:  \:  \:  =   \frac{ - ( - 12) +  \sqrt{ { (- 12)}^{2} - 4(1)(20) } }{2(1)} \\  \\ x =  \frac{ - b +  \sqrt{ {b}^{2} - 4ac } }{2a}  \:  \:  \:  \:  =   \frac{ - ( - 12)  -   \sqrt{ { (- 12)}^{2} - 4(1)(20) } }{2(1)} \\  \\ x =  \frac{12 + 8}{2}  \:  \:  \:  \:  \: or \:  \:  \:  \: x =  \frac{12 - 8}{2}  \\  \\ x = 10 \:  \:  \:  \:  \: or \:  \:  \:  \:  \: x = 2 \:  \:  \: ans.
8 0
3 years ago
Write the equation of the line that passes through the point (3,5) and is perpendicular to the line y=3.
3241004551 [841]

Answer:

x = 3

Step-by-step explanation:

y = 3 is the equation of a horizontal line parallel to the x- axis.

A line perpendicular to it must therefore be a vertical line parallel to the y- axis with equation

x = c

where c is the value of the x- coordinates the line passes through.

The line passes through (3, 5) with x- coordinate 3 , thus

x = 3 ← equation of perpendicular line

6 0
3 years ago
This exercise involves the formula for the area of a circular sector. The area of a circle is 700 m2. Find the area of a sector
mezya [45]

Answer:

334.4 m²

Step-by-step explanation:

The formula for the area of a sector is given as:

1/2 × r² × θ

Where θ = Central angle

Area of a Circle = 700 m²

The formula for the area of a circle = πr²

r = Radius of a circle

r² = Area / π

r = √Area / π

r = √700/π

r = 14.927053304 m

Approximately, r = 14.93 m

Therefore, the area of the sector

= 1/2 × r² × θ

= 1/2 × 14.93² × 3 rad

= 334.35735 m²

Approximately, Area of the sector = 334.4 m²

4 0
2 years ago
Estimate the square root of 75.<br> a. 8.7<br> b. 4.2<br> c. 7.4<br> d. 9.5
SVEN [57.7K]

Answer: A.8.7

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the answer to this problem
    13·1 answer
  • 33:30 Mr. Brown is creating examples of systems of equations. He completes the steps to find the solution of the equation below.
    12·1 answer
  • 24 16/17 divided by 4 8/9
    5·1 answer
  • What is the area of square? see the picture​
    14·1 answer
  • These angles are equal. What are they called?
    8·2 answers
  • Need help for 12 please​
    14·1 answer
  • Help me with this please
    8·2 answers
  • Which temperature is warmer: -3 or -4 degrees Celsius?
    10·1 answer
  • This scale has a meaningful zero point and equal intervals; therefore, it can be manipulated by all mathematical principles
    9·1 answer
  • Question 8 of 10Which equation represents the slope-intercept form of the line below?y-intercept = (0, 3)slope 4
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!