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2 years ago

How do you find the domain of a function?

Mathematics

1 answer:

nadezda [96]2 years ago

4 0

To find the domain of a function you have to find all the possible input values.

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D) A shopkeeper bought two radios for Rs 6,000. He sold one of them at a profit of 20℅

Orlov [11]

Answer:

2400 and 3600

Step-by-step explanation:

Radio 1 cost = x

Radio 2 cost= 6000- x

x*1.2+(6000-x)*0.9= 6000*1.02
1.2x-0.9x+5400=6120
0.3x= 6120-5400
0.3x= 720
x=720/0.3
x= 2400
6000- x= 3600

8 0

2 years ago

Gloria Trench checked her gas mileage and found that she had used 16.6 gal of gas to travel 372 mi. At this rate, how many gallo

Andru [333]

About 127.156 its not exact but instead of 2850 miles i used 2849.52 miles so tell me if thats fine

5 0

2 years ago

What is one fourth of 72

Phantasy [73]

72 / 4 = 18

The answer is 18.

8 0

2 years ago

Read 2 more answers

Jim would like to create a pencil holder with no top. He would like it to be 5 inches taller and 3 inches wide. He can't decide

irakobra [83]

Answer:

$\$11.13$

Step-by-step explanation:

step 1

Find the surface area of the cylinder

The surface area of the cylinder is equal to

$SA=\pi r^{2} +2\pi rh$

we have

$r=3/2=1.5\ in$ ----> the radius is half the diameter

$h=5\ in$

assume

$\pi =3.14$

substitute

$SA=(3.14)(1.5)^{2} +2(3.14)(1.5)(5)=54.165\ in^{2}$

Find the cost

$54.165*(0.75)=\$40.62$

step 2

Find the surface area of the square prism

The surface area of the prism is equal to

$SA=b^{2} +4bh$

we have

$b=3\ in$

$h=5\ in$

substitute

$SA=(3)^{2} +4(3)(5)=69\ in^{2}$

Find the cost

$69*(0.75)=\$51.75$

step 3

Find the difference of costs

$\$51.75-\$40.62=\$11.13$

4 0

3 years ago

Y = 6x + 11 2х - Зу = 7

irakobra [83]

9514 1404 393

Answer:

(x, y) = (-2.5, -4)

Step-by-step explanation:

Since you are given an expression for y, it is convenient to substitute that into the second equation.

2x -3(6x +11) = 7

2x -18x -33 = 7

-16x = 40 . . . . . . add 33

x = -40/16 = -2.5

Using the equation for y, we find ...

y = 6(-2.5) +11 = -15 +11 = -4

The solution is (x, y) = (-2.5, -4).

8 0

2 years ago