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
Helga [31]
3 years ago
8

Solve the equation: X to the 4th power - 81=0

Mathematics
1 answer:
Musya8 [376]3 years ago
5 0
x^4-81=0\\
x^4=81\\
x^4=3^4 \vee x^4=(-3)^4\\x=3 \vee x=-3
You might be interested in
What is blank divided by 750 equals 4
pychu [463]
X/750=4
multiply both sides by 750
x=3000

the number is 3000
6 0
3 years ago
..Urgent.. 600 students attend Ridgewood Junior High School. 10% of students bring their lunch to school everyday. How many stud
zysi [14]

Answer:

Number of student bring their lunch = 60

Step-by-step explanation:

Given:

Total number of student = 600

Student bring their lunch = 10%

Find:

Number of student bring their lunch

Computation:

Number of student bring their lunch = Total number of student x Student bring their lunch

Number of student bring their lunch = 600 x 10%

Number of student bring their lunch = 60

3 0
2 years ago
See picture below. What is the difference between 4∑n=1 2n+1 and 4∑i=1 (2i+1)?
kondor19780726 [428]

Answer:

3

Step-by-step explanation:

\sum 2n+1= \boxed{\big( \sum_{i=1} ^{4}2n \big) +1}

And,

$ \sum (2i+1)= \sum (2i)+ \sum_{i=1} ^{4} (1) $

$=\sum_{i=1} ^{4}(2i) + 1+1+1+1 $

$=\boxed{\Big(\sum_{n=1} ^{4}(2n)\Big) +4}.... \text{Variable in Summation doesn't matter}$

Hence the difference is 3.

8 0
3 years ago
An archaeologist at a dig sets up a coordinate system using string. Two similar artifacts are found one at position (1, 4) and t
myrzilka [38]

Given:

Positions of two artifacts are at points (1, 4) and (5, 2).

To find:

The distance between these two artifacts.

Solution:

Distance formula: The distance between two points is

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Using distance formula, the distance between two points (1, 4) and (5, 2) is

d=\sqrt{(5-1)^2+(2-4)^2}

d=\sqrt{(4)^2+(-2)^2}

d=\sqrt{16+4}

d=\sqrt{20}

d=4.4721359

Round to the nearest tenth of a unit.

d\approx 4.5

Therefore, the distance between two artifacts is 4.5 units.

4 0
2 years ago
Simplify and state the excluded values:<br><br> 12x^3 - 12x/ 28x^3-56x^2+28x
Eddi Din [679]
<u>      12x³ - 12x      </u><u /> = 3/7 - 1/56x² - 3/7 = 3/7 - 3/7 - 1/56x² = -1/56x²
28x³ - 56x² + 28x
8 0
3 years ago
Other questions:
  • Choose the correct simplification of the expression (8x^4y^3)2
    13·1 answer
  • The seats at a local baseball stadium are arranged so that each row has five more seats than the row below it. If there are 4 se
    13·1 answer
  • Help...?! Pleassssssssssssse
    13·1 answer
  • Solve and simplify <br> 2/5+1/4+7/10=
    5·2 answers
  • Which expressions represent a quadratic expression in factored form?
    15·2 answers
  • A raincoat costs $79.25 today. If a similar raincoat cost $52.48 in 1983, what is the CPI? a. 166 b. 151 c. 132 d. 127
    10·2 answers
  • F(x)=8−4x−x^3 <br> g(x)=x^2+7x−9 <br> Find f(x)+g(x).
    8·1 answer
  • I don’t understand help pls
    8·1 answer
  • Select all the names that could be used to describe the figure.
    15·1 answer
  • 60 POINTS PLEASEEEEEEEEEEEE
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!