All categories

2 years ago

Can somebody help me out please !

Mathematics

1 answer:

Agata [3.3K]2 years ago

4 0

Answer:

Part A

5yr old boy.

Y=-(1/8)x+113/8 x=5

Y=-5/8+113/8=(113-5)/8=108/8

Y=13.5 hrs

Yes the estimated value of sleep by this function is reasonable as it is close to childhood more sleep is likely.

Part B

20yr old boy.

Y=-(1/8)x+113/8 x=20

Y=-20/8+113/8=(113-20)/8=93/8

Y=11.63 hrs

No the estimated value of sleep by this function is not reasonable as the normal sleep of 7-8 hrs is enough for adults.

Step-by-step explanation:

You might be interested in

Recall that the perimeter of a square is 4 times as large as the length of one of the sides of the square. Let x represent the l

Tcecarenko [31]

The required function formula for the function "f" is $f(x) = 4x$

Since the side length of the square cannot be positive, hence the domain will be values from 0 and above i.e. Domain = 0≤x≤∞

The range of the function will be 4≤f(x)≤∞

The perimeter of a square is expressed according to the formula:

P = 4L

P is the perimeter of the square

L is the side length of the square

Given the following

Perimeter is y

Length is x

The function that represents the statement is expressed as $y=4x$

The required function formula for the function "f" is $f(x) = 4x$

The domain of the function is the value of the input value for which the function exists

Since the side length of the square cannot be positive, hence the domain will be values from 0 and above i.e. Domain = 0≤x≤∞

The range of the function is the value of the output value f(x) for which the function exists, hence;

The range of the function will be 4≤f(x)≤∞

Learn more here: brainly.com/question/20838649

3 0

3 years ago

Two years of cable service costs $880 including the set up fee of $40. What is the monthly cost?

Leviafan [203]

heioenjxkjdmnwkoskmkk kfmmkswlleoivvnmw

6 0

3 years ago

Which is true of a geometric plane? A) one-dimensional B) two-dimensional C) three-dimensional Eliminate D) no dimensions, only

pishuonlain [190]

<span>A geometric plane is two-dimensional. Standing at one point in the plane and picking two directions to travel which are not opposites of one another, any direction of travel on the plane can be obtained by composing these two directions. Since it is two directions, the plane is two-dimensional. There is a way of describing this also using algebra. The general equation for a plane is ax + by + c = 0. For example, when a = 2, b = 3, and c = 4, the equation 2x + 3y = 4 is that of a plane. Since there are two variables here, x and y, the plane is two-dimensional.</span>

7 0

3 years ago

Read 2 more answers

What is the value of the expression 3^4 – 4^3?

PIT_PIT [208]

The correct answer is A) 17

Why? Let's see ---

If an exponent means to multiply the base as many times as the exponent says, let's start with that.

3 x 3 x 3 x 3 = 81

4 x 4 x 4 = 64

Now we subtract each answer from each other -

81 - 64 = 17