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
NeTakaya
3 years ago
13

What are the solutions of the equation 9x^4-2x^2-7=0? Use u substitution to solve.​

Mathematics
1 answer:
wolverine [178]3 years ago
4 0
X is equal to -1 or 1
You might be interested in
Find the value of 10 to the third power
PolarNik [594]
Simple, it's thousand!! friends
7 0
3 years ago
Pls help !!!!! i'll mark brainliest
ExtremeBDS [4]

Answer:

Last year there were 550 bison in the heard and this year it is 10% larger.

10% is also 10/100 or 0.10

To find 10% of the heard last year

550 x.0.10 = 55. To find the number in the heard this year add 550 (last year) + 55 (10% growth) = 605 or,

to find how many there are now last years heard size was 100% of the heard or 1.00. To find any percent more add it to 1.00 and multiply by the starting amount.

550 x 1.10 = 605

For the second example.

If there are 550 bison in the heard this year, and this year was a decrease of 10% from last year we can express last year's number like this.

550 = (x - (x * 0.10)) simplify;

550 = 1x - 0.10x

550 = 0.90x

Divide both sides by 0.90

x = 611.11 but it's hard to have 0.11 of a bison so realistically 611 bison last year. Subtract 10% or 61 and you indeed have 550 this year.

5 0
3 years ago
How to find instantaneous rate of change?
tensa zangetsu [6.8K]
Just differentiate it with time or with whatever respect you want ! mainly it is time !
6 0
3 years ago
If vx=11u and vz=u+30 find the value of u that makes the Quadrilateral WXYZ a parallelogram ​
stiv31 [10]
This answer is quadrant 3 because if you do the math then you end up in quadrant 3
6 0
2 years ago
Oliver runs 23 fewer laps than nate. Nate runs 61 laps. How many laps does oliver run?
Crazy boy [7]

Answer:

38

Step-by-step explanation:

Since Oliver ran 23 fewer laps, you would use subtraction.

So you do 61-23=38

Hope this helps!!

Let me know if you are confused.

5 0
3 years ago
Read 2 more answers
Other questions:
  • A quarter weighs about 0.025 pound.what is this weight written in scientific notation
    15·1 answer
  • A rectangular garden has a perimeter of 174 feet. The length is 9 feet more than twice the width. Find the length and the width.
    15·1 answer
  • -5/6x = 20 2/3(x - 7) = -2 solve them and show your work! ASAP! I need this done fast!!
    11·1 answer
  • 2<br> 3<br> 4<br> 5<br> Simplify.<br> (-v2+3v – 7) + (402+5v+6)
    5·1 answer
  • Please find X............
    12·1 answer
  • 1/2 ( x - 4 ) = 1/3 ( x + 2)<br><br> pls help me
    12·2 answers
  • A sleep study found that the number of hours each person slept was normally
    8·1 answer
  • A boat travels 429 miles in 13 hours (with a constant
    8·1 answer
  • Prove this identify : 2 cos^2 (45°-A ) = 1 +sin 2 A​
    7·1 answer
  • 4x+3+3=-2<br> help asappl
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!