What are the zeros of the function f(x) = x4 − 4x2 − 5?
2 answers:
Answer:
See below ~
Step-by-step explanation:
The function is :
<u>f(x) = x⁴ - 4x² - 5</u>
<u />
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Plotting on a graph :
⇒ Once plotted on graph, check where the line of the function intersects the x-axis
⇒ Those will be the zeros of the function
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Solution :
⇒ <u>x = -2.236</u>
⇒ <u>x = 2.236</u>
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The sequence is
740, 707.60,675.20,642.80,...
Here first term is 740, and common difference, d is
Now we use the formula of nth term, which is
Substituting the values of a,n and d, we will get
Correct option is the second option .
Answer:
Area of Circle A = 1133.54
Circumference of Circle A= 119.32
Step-by-step explanation:
Given: Sum of both circle diameters= 49 feet.
Circle A radius= Three feet less than twice the diameter of circle B.
Lets assume diameter of Circle B is "x"
∴ Circle A radius (r)=
We know, the diameter of circle is
Diameter of Circle A is
Next as given sum of both circle diameter is 49 feet.
∴
distributing 2 with 2x and -3
⇒
⇒
Adding both side by 6
⇒
Cross multiplying both side.
⇒
∴ Diameter of circle B is 11 feet.
Next, subtituting the value of x to get the value of radius for Circle A.
Radius of circle A=
⇒ Radius of circle A=
∴ Radius of circle A= 19 feet.
Area of circle=
Taking π= 3.14
Area of circle A=
∴ Area of circle A= 1133.54
Circumference of circle= 2πr
Circumference of Circle A=
∴ Circumference of Circle A= 119.32