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
salantis [7]
4 years ago
13

What are the real solutions of the equation x^4= 81?

Mathematics
1 answer:
zmey [24]4 years ago
5 0
Use photomath it’s free
You might be interested in
Pls help :( Will mark as brainliest
bagirrra123 [75]

Answer: The only correct answer is 8/18. See below

Step-by-step explanation:

All you need to do is divide the denominator of 9 into the denominator of each fraction, and multiply the numerator by the same factor like this:

4/9 = ?/36; 36/9 = 4; 4x4 =16, so we know that 4/9=16/36 NOT 20/36

4/9 = ?/18; 18/9 =2; 2x4 =8, so we know that 5/9 = 8/18 so YES.

4/9 = ?/45; 45/9=5; 5x4 = 20, so we know that 5/9 = 20/45 NOT 24/45

5/9 = ?/27; 27/9 =3; 3x5 = 15, so we know that 5/9 = 15/27 NOT 12/27

8 0
3 years ago
Calculate the area of this triangle.<br> 17 cm<br> 8 cm<br> 15 cm-<br> Area - Triangles<br> Overview
Bezzdna [24]

Answer:

There are 3 possible answers because you didn't state which value was base or height.

Going off the assumption that the base is 15 cm and the height is 8 cm, the area is 60 cm. (same answer if base is 8 cm and height is 15 cm)

A = 1/2(b*h)

A = 1/2(15*8)

A = 1/2(120)

A = 60

Going off the assumption that the base is 17 cm and the height is 8 cm, the area is 68 cm. (same answer if base is 8 cm and height is 17 cm)

A = 1/2(b*h)

A = 1/2(17*8)

A = 1/2(136)

A = 68

Going off the assumption that the base is 15 cm and the height is 17 cm, the area is 127.5 cm. (same answer if base is 17 cm and the height is 15 cm)

A = 1/2(b*h)

A = 1/2(15*17)

A = 1/2(255)

A = 127.5

4 0
3 years ago
If you know that​ R' (20)=50 and​ R''(20)=-4, approximate​ R'(24)
vladimir1956 [14]

Approximate <em>R'</em> by using a linear approximation: for <em>x</em> close enough to 24, you have

<em>R'(x)</em> ≈ <em>L(x)</em> = <em>R' </em>(20) + <em>R''</em> (20) (<em>x</em> - 20)

Then

<em>R'</em> (24) ≈ <em>R'</em> (20) + <em>R''</em> (20) (24 - 20) = -4 + 50 (24 - 20) = 196

4 0
3 years ago
Where is the blue dot on the number line?
Keith_Richards [23]

Answer:

-11.3

Step-by-step explanation:

You start off at -11 and count down and it ends up at -11.3

5 0
3 years ago
Write a polynomial equation that is best represented by the graph. Please show work and thanks in advance! :)
kipiarov [429]
It's a 3rd degree polynomial judging by the shape.  Use the 3 factored zeros of x=-1,0,2 to get x(x+1)(x-2)
multiply this out to get
y=x^3-x^2-2x
I plotted it too

3 0
4 years ago
Read 2 more answers
Other questions:
  • What is the constant variation, k, of the direct variation, y=kx, through (-3,2)
    5·2 answers
  • Estimate what is 31.75÷8= you have to estimate tho
    8·1 answer
  • Help, I don’t understand.
    12·1 answer
  • 3 + 2x ≥ -4 solutions
    11·2 answers
  • River c is 500 miles longer than River d. The sum of their length is 5520 miles. What is the length for each river
    10·1 answer
  • Will give brainliest please help ASAP
    7·1 answer
  • How do you explain how to find the volume of a cylinder
    11·1 answer
  • Frank received a monthly statement for his college savings account. It listed a deposit of $100 as +100.00. It listed a withdraw
    10·1 answer
  • Hank works at an auto repair shop. He has a customer that spent $415 on parts for the repair. Hank
    13·1 answer
  • 75+12.55 = 100 +105. <br><br> I need the Asnwer
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!