I need help with 2. Can you help!?

Qwesdddddddfffffffggggggggggggggggggggggggggggggggggggggg

Gennadij [26K]

Answer:

Step-by-step explanation:

kjiuhytresdzxiu8y765re4rsdxfbhgytfyrdeswaszxdfcg

4 0

3 years ago

Read 2 more answers

How do I even start this? And how to i order the equation to solve

Kobotan [32]

$f(g(h(x)))=f(g(\sqrt x))=f(\sqrt x-1)=\boxed{(\sqrt x-1)^4+4}$

This is because

$h(x)=\sqrt x$

$g(x)=x-1$

$\implies g(h(x))=\sqrt x-1$

(that is, replace any instance of <em>x</em> in the definition of <em>g</em> with √<em>x</em> )

and

$f(x)=x^4+4$

$\implies f(\sqrt x-1)=(\sqrt x-1)^4+4$

(replace any <em>x</em> in <em>f</em> with √<em>x</em> - 1)

Also acceptable:

$(\sqrt x-1)^4+4=((\sqrt x)^4-4(\sqrt x)^3+6(\sqrt x)^2-4\sqrt x+1)+4$

$=\boxed{x^2-4x\sqrt x+6x-4\sqrt x+5}$

(assuming <em>x</em> is not negative)

6 0

3 years ago

Could I get some help!! Please.

professor190 [17]

Ok, so your answer would be 89.75

5 0

3 years ago

Riding a bike a person takes 20 minutes to go to work. The trip back home takes 30 minutes. If the rate back is 8 mph slower tha

Ghella [55]

<h2>Answer:</h2>

Trip to work has rate: 24 mph

Trip back to home has rate: 18 mph

Distance to work is: 480 m

<h2>Step-by-step explanation:</h2>

We know that speed is defined as the ratio of distance to time.

i.e.

$Speed=\dfrac{Distance}{Time}$

Let the distance traveled to work be: x m.

Now, while going to work it takes a person 20 minutes.

This means that the speed of the person while going to work is:

$S_1=\dfrac{x}{20}$

Also, the time taken to come back home is: 30 minutes.

This means that the speed of person while riding to home is:

$S_2=\dfrac{x}{30}$

Also, it is given that the rate back is 8 mph slower than the trip to work.

This means that:

$S_1-S_2=8$

i.e.

$\dfrac{x}{20}-\dfrac{x}{30}=8\\\\i.e.\\\\\dfrac{30x-20x}{600}=8\\\\i.e.\\\\\dfrac{10x}{600}=8\\\\i.e.\\\\\dfrac{x}{60}=8\\\\i.e.\\\\x=480\ \text{m}$

Hence, the distance to work is: 480 m.

Also, the rate while going to work is:

$=\dfrac{480}{20}\\\\=24\ \text{mph}$

and the trip back to home is covered with the speed:

$=\dfrac{480}{30}\\\\=16\ \text{mph}$

6 0

3 years ago

fair die was rolled 10 times with the following results: 5 5 1 3 2 1 5 6 5 1 Which of the following is a correct statement about

Ulleksa [173]

Answer:

Each value (1 to 6) has exactly the same probability of being rolled.

Step-by-step explanation:

Given

Rolls: 10

Outcome: 5 5 1 3 2 1 5 6 5 1

Required

Which is true about the next 10 rolls

In the roll of a fair die (as stated in the question), each face has equal probability of being the outcome of individual rolls.

This implies that options (a), (b) and (c) are not true because they do not support the above statement,

<em>Hence, (d) is correct</em>

5 0

3 years ago

I need help with 2. Can you help!?​

I need help with 2. Can you help!?