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choli [55]
3 years ago
6

can you simplify all these 2(3x-9) ,5(8x-4y) -3(2x+7y+2) -2(3x+5) 9(8x+3y+4)

Mathematics
1 answer:
Ahat [919]3 years ago
4 0
6x-18. 40x-20y. -6x-21y-6. -6x-10. 72x +27y+36
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Solve for possible values of x. 3x^2 = 18x
uysha [10]

(0,0) and (6,0)

First we subtract 18x from both sides

3x²-18x=0

Factor out a 3x

3x(x-6)=0

This means that x is either 0 or 6

7 0
3 years ago
Read 2 more answers
The graph of the step function g(x) = –⌊x⌋ + 3 is shown. What is the domain of g(x)? {x| x is a real number} {x| x is an integer
allsm [11]

Answer:

Option A is correct.

The domain of the g(x) is {x | x is a real number}

Step-by-step explanation:

The graph of the step function: g(x)=-\left \lfloor x \right \rfloor +3


Floor function is defined as the function that gives the highest integer less than or equal to x.

The graph of function: g(x)=-\left \lfloor x \right \rfloor +3  where x is the independent variable as shown below;

Domain of any function is the complete set of possible values of the independent variable

Therefore, the domain of the function g(x) is the set of all real numbers or we can represent this as  {x | x is a real number}.

3 0
4 years ago
Read 2 more answers
Find the student’s error in solving the following inequality.
Leto [7]

Answer:

The student should have switched the direction of the inequality sign to

get –5 > x for a final answer.

Step-by-step explanation:

When multiplying or dividing an inequality by a negative "flip" the inequality sign

The student should have switched the direction of the inequality sign to

get –5 > x for a final answer.

---------------

Note:

For a more conventional appearance the entire inequality can be flipped to

–5 < x

6 0
3 years ago
Use point-slope form to write the equation of a line that passes through the point
Ymorist [56]

Answer:

y= -2x-22.

Step-by-step explanation:

1) the slope-interception common form is y=s*x+i, where 's' and 'i' are the slope and interception, unknown numbers;

2) if x₁= -3; y₁= -16, and s=-2, then the equation of the required line can be written in the point-interception form y-y₁=s(x-x₁); ⇔ y+16= -2(x+3);

3) the required equation in slope-interception form is:

y+16= -2x-6; ⇒ y= -2x-22.

note, the provided solution is not the only and shortest way.

5 0
2 years ago
Kara bought two birthday gifts for her twin nephews. Each gift cost $12.50. Sales tax was 6.75%. What was the total cost for the
Katyanochek1 [597]

Answer:

Step-by-step explanation:

two birthday gifts n each costs $12.50 so 12.50x2 = $25

sales tax was 6.75% on $25 = 25x6.75/100 = $1.69

total cost including tax = 25+1.69 = $26.69

6 0
3 years ago
Read 2 more answers
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