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2 years ago

How many real solution does the equation x^7+14x^5+16x^3+30x-560=0

Mathematics

1 answer:

White raven [17]2 years ago

7 0

Consider the given equation to be f(x) whose first derivative is positive for all real x. This implies f(x) is a strictly increasing function. Thus it has only 1 root.

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As x approaches 4, the value of 4x + 3 approaches<br> Gri

gogolik [260]

Answer:

Step-by-step explanation:

$4 \times x + 3 = 4 \times 4 + 3 = 16 + 3 = 19$

3 0

3 years ago

a metal rod 9.4 meters long is cut into two piecew. One piece is 3 times as long as the other m. find the length of the longer p

Grace [21]

$x-shorter\ piece\\3x-longer\ piece\\\\x+3x=9.4\\4x=9.4\ \ \ \ \ |:4\\x=2.35\\\\3\cdot2.35=7.05\approx7.1\\\\The\ longer\ piece\ has\ 7.1\ meters$

8 0

2 years ago

The formula κ(x)= f′′(x) 1+f′(x)23/2 expresses the curvature of a twice-differentiable plane curve as a function of x. Use thi

Katyanochek1 [597]

Answer:

K(x) = $\frac{-10}{[1 + (-10x)^2]^{\frac{3}{2} } }$ ( curvature function)

Step-by-step explanation:

considering the Given function

F(x) = $-5x^2$

first Determine the value of F'(x)

F'(x) = $\frac{d(-5x^2)}{dy}$

F'(x) = -10x

next we Determine the value of F"(x)

F"(x) = $\frac{d(-10x)}{dy}$

F" (x) = -10

To find the curvature function we have to insert the values above into the given formula

K(x) $= \frac{|f"(x)|}{[1 +( f'(x)^2)]^{\frac{3}{2} } }$

K(x) = $\frac{-10}{[1 + (-10x)^2]^{\frac{3}{2} } }$ ( curvature function)

6 0

3 years ago

What is the standard to slope intercept form 4x - 4y = -8

cupoosta [38]

Answer:

y = x + 2

Step-by-step explanation:

4x - 4y = -8 can be rearranged to slope-intercept form by isolating y.

$4x - 4y = -8\\-4y = -8 - 4x\\y =\frac{-8-4x}{-4} \\y = 2 + x\\y = x + 2$

4 0

3 years ago

If 1 candy cost 20$ what is the amount of 30 candy

lana [24]

Answer:

$600

Step-by-step explanation:

you would do 30 x 20 since each piece of candy cost $20.

5 0

3 years ago

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