All categories

3 years ago

If f(x)= 3/x+2- square root x-3, complete the following statement: f(19)=

Mathematics

1 answer:

I am Lyosha [343]3 years ago

8 0

f(7)≈1.6666 Please mark me as brainliest

round

f(7)=1.67

The domain of the function is the set of all the values of x that would allow the function to have real values. Since the radicand is x - 3, the value of x cannot be less than 3 because that would make the value of sqrt (x - 3) an imaginary number. Thus, the domain should be all numbers GREATER than or equal to 3.

You might be interested in

The value of your father’s car when bought was $30,000. If it loses 10% of its value every year, how long until the vehicle is o

Anvisha [2.4K]

Answer:

6.7

Step-by-step explanation:

10% of 30000

10/100 x 30000

0.10 x 30000

=3000

In order to find how long you have to divide 20k with 3k

20000/3000 = 6.66666667

Round it up and you get 6.7

6 0

3 years ago

Given (x)=-x²+2x,determine<br> F'(x) using first principle

mote1985 [20]

Hello,
which principle?

f(x)=-x²+2x
==>f'(x)= -2x+2

You mean maybe this

$\lim_{h \to 0} \frac{f(x+h)-f(x) } {h}$

f(x+h)=-(x+h)²+2(x+h)= -(x²+2hx+h²)+2x+2h
f(x)=-x²+2x

$\lim_{h \to 0} \frac{f(x+h)-f(x) } {h}=\lim_{h \to 0}\frac{-2hx-h^2+2h}{h}=\lim_{h \to 0}\frac{-2x-h+2}{1}=-2x+2$

6 0

3 years ago

Answer the following questions using the information below: The cold Spring Harbor Corporation currently leases a corporate sui

DanielleElmas [232]

Answer:

If the stand-alone method would be used the startup would pay $60,000.00.

Step-by-step explanation:

The current cost for Spring Harbor Corporation is $180,000.00, but they use only 70% of the corporate suite.

If the start-up divide the corporate suite, they will use only 30%, but the total cost will be 180,000.00 + 20,000.00 = 200,000.00

We add the values because 180,000.00 counts the cost of maintenance paid before.

Using the percentages to find the cost for the start-up:

$200000*\frac{30}{100} = 60000$

So, $60,000.00 will be allocated to the start-up business.

3 0

3 years ago

Henry just got a job at the mall. His job pays an hourly rate of $10.25.

nadezda [96]

Answer:

A. He will have to work 40 hours to buy the headphones

B. 1200 ≤ 10.25x ≤ 2000 where x is # of hrs worked

He can work anywhere between 118 and 196 hours.

Step-by-step explanation:

A. Divide 399.95 by 10.25 to get 39.01 hours. But since you cant work 0.01 of an hour, you have to round up to the next hour

B. You want to make more than or equal to 1200, so put that in the inequality. You want to make less or equal to 2000, so you put that in the inequality. In the middle, you put 10.25 an hour multiplied by the number of hours, which is a variable.

To solve, I made 10.25x = 1200, and x equaled 117.07, which rounds up to 118 hours because you cant work a 0.07 of an hour. 118 hours is the low number of the spectrum.

To solve for the highest number on the spectrum, you do 10.25x = 2000, and x equals 195.12, but since you cant work 0.12 of an hour, it rounds up to 196 hours.

3 0

1 year ago

Help me answer pls thanks.Dont answer if ur just put nothing or you dont know.

raketka [301]

Hi I want the points thanks

8 0

2 years ago