Which is the graph of y = [x]-2?<br> Please please helped timed 20points

Every year Ethan earns 38,428. Each year he spends 21,728 on expenses. How much money should he have left over?

PolarNik [594]

Answer:

16,700

Step-by-step explanation:

Given that,

Earning of Ethan = 38,428

Ethan spends 21,728 on expenses.

We need to find the amount of money he has left over. It can be calculated as follows :

Left money = Earning - Spent

= 38,428 - 21,728

= 16,700

So, he has left over 16,700.

7 0

2 years ago

The diameter and height of a right circular cylinder are found at a certain instant to be 10 centimeters and 20 centimeters, res

Andrej [43]

Answer:

Step-by-step explanation:

Here's the formula for the volume of a right circular cylinder:

$V=\pi r^2h$

Here's what we are given and what we need to find:

Given that d = 10 cm, h = 20 cm, dd/dt = 1 cm/sec

Need to find dh/dt when V is constant

Since our formula has a radius in it and not a diameter but the info given is a diameter, we can use the substitution that

$2r =d$ so

$r=\frac{1}{2}d$

Now we can rewrite the formula in terms of diameter:

$V=\pi (\frac{1}{2}d)^2h$ which simplifies down to

$V=\frac{\pi }{4}d^2h$

Now we will take the derivative of this equation with respect to time using the product rule. That derivative is

$\frac{dV}{dt}=\frac{\pi }{4}[d^2*\frac{dh}{dt}+2d\frac{dd}{dt}*h]$

Now we can fill in our values. Keep in mind that if the volume is constant, there is no change in the volume, so dV/dt = 0.

$0=\frac{\pi }{4}[(100\frac{dh}{dt}+2(10)(1)(20)]$ and

$0=\frac{\pi }{4}(100\frac{dh}{dt}+400)$

Multiply both sides by pi/4 to get

$0=100\frac{dh}{dt}+400$ and solve for dh/dt:

$-4=\frac{dh}{dt}$

Interpreted within the context of our problem, this means that the volume will be constant at those given values of diameter and height when the liquid in the cylinder is dropping at a rate of 4 cm/sec.

4 0

2 years ago

A random variable X follows the continuous uniform distribution with a lower bound of −4 and an upper bound of 18. a. What is th

shutvik [7]

Answer:

The height of the density function is $\frac{1}{22}$

Step-by-step explanation:

Given : A random variable X follows the continuous uniform distribution with a lower bound of −4 and an upper bound of 18.

To find : What is the height of the density function f(x)?

Solution :

According to question,

The height of the density function is given by,

$f(X)=\frac{1}{b-a}$

Where, a is the lower bound a=-4

b is the upper bound b=18

Substitute the value in the formula,

$f(X)=\frac{1}{18-(-4)}$

$f(X)=\frac{1}{18+4}$

$f(X)=\frac{1}{22}$

Therefore, The height of the density function is $\frac{1}{22}$

5 0

2 years ago

Read 2 more answers

Help me best answer will get brainliest

marusya05 [52]

Answer:

you can see when you put x = -3 you get 0 for g(x)

so we can write g(x) = 3+x because if we put x to be -3 in this equation you get 0.

a. h(0) = f(0)g(0), g(0) = 3+0= 3

h(0) = f(0)x3, now In the graph f(x) we can see at x=0, y is -1.

now h(0) = -1x3 = -3 (answer)

b. (-infinity, +infinity) or (-2, inf) I'm not sure.

c. values that yeild h(x)=0 are; -3, 3, -1.

3 0

2 years ago

Three boys cut out hundredths decimal models. Fred does not shade any of his models. Edward shades nine tenths of one model. Jef

mario62 [17]

Answer:

Step-by-step explanation:

Fred does not shade any model

Edwards shades nine tenths : 0.9

Jeff shades shades seven tenths : 0.7

so add 0.9 + 0.7, you get 0.16 : sixteen hundredths .

7 0

2 years ago

Which is the graph of y = [x]-2? Please please helped timed 20points