3 years ago

For which of the following increasing functions f does (f-1)'(20) = 1/5

Mathematics

1 answer:

aalyn [17]3 years ago

5 0

Answer:

D f(x)= e^x+ 5x + 19

Step-by-step explanation:

D f(x)= e^x+ 5x + 19

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Factor the common factor out of each expression. 2x^3-10x^2

Kaylis [27]

The common factor is 2x^2
2x^2(x-5)

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3 years ago

Which equation represents a line that passes through (5,4) with a slope of 2∕5?

abruzzese [7]

The answer is y = 2/5x + 2

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2 years ago

<img src="https://tex.z-dn.net/?f=2%20%20%2B%20%20%5Cfrac%7B60%7D%7B%28%20-%203%29%7D%20%20-%205%28%20-%202%29" id="TexFormula1"

luda_lava [24]

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3 years ago

A recursive rule for a geometric sequence is a1=2; an= 4/9 an-1

Oxana [17]

A recursive rule for a geometric sequence:

$a_1\\\\a_n=r\cdot a_{n-1}$

---------------------------------------------------

$a_1=2;\ a_n=\dfrac{4}{9}a_{n-1}\to r=\dfrac{4}{9}$

---------------------------------------------------

The exciplit rule:

$a_n=a_1r^{n-1}$

Substitute:

$a_n=2\left(\dfrac{4}{9}\right)^{n-1}=2\cdot\left(\dfrac{4}{9}\right)^n\cdot\left(\dfrac{4}{9}\right)^{-1}=2\cdot\left(\dfrac{4}{9}\right)^n\cdot\dfrac{9}{4}\\\\\boxed{a_n=\dfrac{9}{2}\cdot\left(\dfrac{4}{9}\right)^n}$

3 0

3 years ago

Jessica is walking home from a friend's house after 2 minutes she is 1.6 miles from home 8 minutes after leaving she is 1.1 mile

Artist 52 [7]

1.6 miles - 1.1 miles = 0.5 miles

8 minutes - 2 minutes = 6 minutes

She traveled 0.5 miles in 6 minutes.

1 hour = 60 minutes.

60 minutes / 6 minutes = 10

0.5 x 10 = 5

She is walking 5 miles per hour.

5 0

2 years ago