oliviayychengwh
2021-12-18
Answered

Find the linear approximation of the function $f\left(x\right)=\sqrt{4-x}$ at $a=0$ and use it to approximate the numbers $\sqrt{3.9}$ and $\sqrt{3.99}$ , please.

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asked 2021-09-10

A baseball team plays in a stadium that holds 55,000 spectators. With ticket prices at 10, the average attendance had been 27,000. When ticket prices were lowered to10,the average attend ance had been 27,000.When ticket prices were lowered to 8, the average attendance rose to 33,000. How should ticket prices be set to maximize revenue?

asked 2021-09-07

Determine whether each of these functions is a bijection from R to R.

a)

b)

c)

asked 2021-06-11

Find the linear approximation of the function

asked 2020-11-10

Find the derivative of

asked 2022-09-16

A rock is thrown upward from a bridge that is 73 feet above a road. The rock reaches its maximum height above the road 0.98 seconds after it is thrown and contacts the road 3.21 seconds after it was thrown.

Write a function ff that determines the rock's height above the road (in feet) in terms of the number of seconds tt since the rock was thrown.

$f(t)=f(t)=$

Hint: the function ff can be written in the form $f(t)=c\cdot (t-{t}_{1})(t-{t}_{2})\text{}f(t)=c\cdot (t-{t}_{1})(t-{t}_{2})$ for fixed numbers cc, t1t1,

Write a function ff that determines the rock's height above the road (in feet) in terms of the number of seconds tt since the rock was thrown.

$f(t)=f(t)=$

Hint: the function ff can be written in the form $f(t)=c\cdot (t-{t}_{1})(t-{t}_{2})\text{}f(t)=c\cdot (t-{t}_{1})(t-{t}_{2})$ for fixed numbers cc, t1t1,

asked 2021-08-10

Classify whether the function is polynomial, power, rational, algebraic, trigonometric, or other.

a)$f\left(x\right)=2{x}^{3}\u20133{x}^{2}+x-4$

b)$f\left(x\right)=\sqrt[3]{{x}^{2}}$

c)$g\left(x\right)=\frac{x}{{x}^{2}\u20134}$

d)$f\left(x\right)=3{t}^{-2}\u20132{t}^{-1}+4$

e)$h\left(x\right)=\frac{\sqrt{x}+1}{\sqrt{x}\u20131}$

f)$f\left(x\right)=\mathrm{sin}x+\mathrm{cos}x$

a)

b)

c)

d)

e)

f)

asked 2021-06-01

Consider the function $f(x)=2{x}^{3}+6{x}^{2}-90x+8,[-5,4]$

find the absolute minimum value of this function.

find the absolute maximum value of this function.

find the absolute minimum value of this function.

find the absolute maximum value of this function.