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n200080 [17]
3 years ago
14

if the linear function y=-2x+10 has a domain given by [-1, 4] then which of the following is its range?

Mathematics
2 answers:
koban [17]3 years ago
7 0

Answer:

[2, 12]

Step-by-step explanation:

The given function is

y=-2x+10

Which domain is defined as [-1, 4].

To find the corresponding range to this domain, we just have to replace the limits of the domain, and the result will be the limits of the range.

For x=-1, we have

y=-2(-1)+10\\y=2+10=12

For x=4, we have

y=-2(4)+10\\y=-8+10\\y=2

Therefore, the range is [2, 12]

UkoKoshka [18]3 years ago
6 0
(-1،12 )
(4،2 )This is the range for each of them
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The expression below is the factorization of what trinomial-1(x+5)(x+6)
Nadya [2.5K]

Answer:

-x^2 - 11x -30

Step-by-step explanation:

Solve using foiling. Ignore the -1 to begin with and just look at the part in parenthesis. Do x from the first parenthesis times the stuff in the second parenthesis.

ie: x(x) and x(6)

ie: x^2 + 6x

Then do the 5 times the things in the second parenthesis.

ie: 5(x) and 5(6)

ie: 5x + 30

Then add what you got from multiplying the first value to what you got from multiplying the second.

ie: x^2 + 11x + 30

This is a trinomial because it has three different variables. Now change all the signs to negative because of the -1 out front.

ie: -x^2 - 11x -30

4 0
3 years ago
Need help asap. 10 points
IgorLugansk [536]
D is 32
Bc of the alternate angle thing I don’t remember what it’s called

Anddd

For B
180-138= 42=42+29=71
180-71=109
Therefore a is 109


32 +20 is 52
180-52 =128
6 0
3 years ago
Which of these strategies would eliminate a variable in the system of equations?
mariarad [96]

Answer:

<em>Multiply the bottom equation by -3/2 then add the equations. </em>

<em>Multiply the top equation by-3. then add the equations </em>

<em> </em>

Step-by-step explanation:

Given the simultaneous equation

2x- 6y=6  ... 1

6x - 4y = 2 ... 2

To eliminate a variable, we have to make the coefficient of one of the variable to be the same.

Multiply equastion 1 by -3

-6x+18y= -18  

6x - 4y = 2

Add the result:

-6x + 6x + 18y-4y = -18+2

18y-4y = -18+2

14y = -18

y = -9/7

Another way is to Multiply the bottom equation by -3/2 then add the equations.

Multiplying equation 2 by -3/2 will give;

6x(-3/2) - 4y(-3/2) = 2(-3/2)

-9x + 6y = -3

Add to equation 1;

2x- 6y=6

-9x + 2x + 0 = -3+6

-7x = 3

x = -3/7

Hence the correct two options are;

<em>Multiply the bottom equation by -3/2 then add the equations. </em>

<em>Multiply the top equation by-3. then add the equations </em>

<em> </em>

<em></em>

<em></em>

4 0
3 years ago
Solve the equation for y. 2x-y=5
bazaltina [42]

Answer:

just doing this for points

Step-by-step explanation:

so ya :)

3 0
3 years ago
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ASAP! GIVING BRAINLIEST! Please read the question THEN answer CORRECTLY! NO guessing. I say no guessing because people usually g
Valentin [98]

Answer: f(x)=2-x^2

Step-by-step explanation:

The quadratic equation is

y=ax^2+bx+c

and c is equal to the y-intercept.

in the twi graphs shown both have the same shape but different y-intervepts.

c(the y-intercept) in the first graph is 5 and in the second graph(F) is 2.

8 0
3 years ago
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