<span>x^4-9x^2+ 14
=(x</span><span>^2 - 7)(x^2 - 2)
solve for x
</span><span>x^2-2 = 0</span><span>
</span>x^2 = 2
x = <span>+√<span> 2 </span></span> = + 1.4142 and x = -√ 2 = - 1.4142<span>
</span>x^2-7 = 0
x^2 = 7
x = + √ 7 = +2.6458 and x = - √ 7 = - 2.6458
answer: 4 solutions
x = +√ 2 = + 1.4142
x = - √ 2 = - 1.4142<span>
</span>x = + √ 7 = +2.6458
x = - √ 7 = - 2.6458
Answer:
When you set the function equal to zero, the solution is x = 3; therefore, the graph has an x-intercept at x = 3.
Step-by-step explanation:
The given function is .
So, for real zeros and x-intercept, the y-coordinate must be equal to zero.
Then it becomes
⇒ x - 2 = 1 {Since log 1 = 0}
⇒ x = 3
Therefore, when you set the function equal to zero, the solution is x = 3; therefore, the graph has an x-intercept at x = 3. (Answer)
Here's the thing, just as squaring a number "un-does" its square root, sin "un-does"
. So if you're taking the sin of its inverse, what you get back is what you started with. The sin of the inverse sin of sqrt(3)/2 is sqrt(3)/2, choice b.
Answer:
(-1,-3)
Step-by-step explanation:
The given system of equations is;
and
Let us equate the two equations to get;
Group similar terms;
Simplify;
Divide both sides by 9.
Put x=-1, into any of the equations, say (2);
The solution is;
(-1,-3)
Answer:
4
Step-by-step explanation:
The mode is the number that appears the most!!!!
Now lets solve :)
2, 2, 3, 3, 4, 4, 4, 4,
There are 2 2s.
There are 2 3s.
There are 4 4s.
The mode is 4!!! :)
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