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4 years ago

The domain for f(x) and g(x) is the set of all real numbers.

Mathematics

1 answer:

Alekssandra [29.7K]4 years ago

7 0

Answer:

Step-by-step explanation:

$D_f=D_g\quad\implies\quad (f-g)(x)=f(x)-g(x)\\\\\\(f-g)(x)=f(x)-g(x)=(3x+5)-(x^2)=-x^2+3x+5$

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Find the ordered pair that is a member of both -2x + 6y = 34 and

aksik [14]

Answer:

(1, 6) is the solution

Step-by-step explanation:

-2x + 6y = 34

2x + 2y = 14; divide by 2

x + y = 7; subtract x

y = 7 - x

let's substitute y with 7 - x in first equation

-2x + 6*(7 - x) = 34; expand multiplication

-2x + 6*7 - 6*x = 34; group

-8x + 42 = 34; subtract 42

-8x = 34 - 42 = -8; divide by -8

x = 1

y = 7 - 1 = 6

It is the only solution, as we've arrived at exact numbers.

4 0

3 years ago

WILL GIVE U BRAINLIEST NEED HELP PLEASE

sasho [114]

Since you can see that the triangle is isosceles triangle the length of the 2 side will be same

2n+9=7n-18
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8 0

1 year ago

Why is 21 sqrt root an irrational number?

STatiana [176]

Answer:

Because it cannot be written as a fraction

Step-by-step explanation:

The square root of any non-perfect square will always be irrational and cannot be written as a fraction. The sqrt(21) has no repeating digits because its digits go on forever.

6 0

3 years ago

Here is a picture of a cube, and the net of this cube.

just olya [345]

Answer:

726

Step-by-step explanation:

You multiply the base and the height (11x11) and multiply THAT by 6 because there are 6 faces on a cube.

5 0

4 years ago

at a charity basketball game, 450 tickets were sold to students at a school. The remaining x tickets were sold to the public. Th

VladimirAG [237]

Answer:

The number of tickets sold to the public was 375

Step-by-step explanation:

<u><em>The complete question is</em></u>

At a charity basketball game, 450 tickets were sold to students at a school. The remaining x tickets were sold to the public. The students paid $15 and public $25. When all the tickets were sold, $10,500 was collected. How many tickets were sold to the public?

Let

x ----> number of tickets sold to the students

y ----> number of tickets sold to the public

we know that

$x+y=450$ ----> equation A

$15x+25y=10,500$ ----> equation B

Solve the system by graphing

The solution is the intersection point both graphs

using a graphing tool

The solution is the point (75,375)

see the attached figure

therefore

The number of tickets sold to the public was 375

6 0

4 years ago