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gayaneshka [121]
4 years ago
10

7+(a+b)=(7+a)+b please help asap

Mathematics
1 answer:
elena-s [515]4 years ago
5 0

Answer:

We are using the Associate property of addition

Step-by-step explanation:

7+(a+b)=(7+a)+b

We are using the Associate property of addition

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The French club is holding a car wash fundraiser. They are going to charge $10 per car, and expect between 50 and 75 cars. Ident
Marina CMI [18]

It is given in the question that,

The French club is holding a car wash fundraiser. They are going to charge $10 per car, and expect between 50 and 75 cars.

The cost depends on the number of cars washed .

So number of cars is the independent quantity and cost is the dependent quantity .

And here, let, y represents the cost and let x represents the number of cars.

y= 10x

So the domain is 50 to 75 cars.

And when x=50 and 75, value of y is

y=10*50 , y=10*75
\\
y= 500, y=750

And the range is $500 to $750 .

So the correct option is B

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3 years ago
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Answer

4. - x ^ 2 + 13x - 42 <= 0524211r

5. x ^ 2 - 11x - 42 < 0

16 - x ^ 2 + 9x - 8 <= 0

17. x^ 2 -11x+80<0

18. - x ^ 2 + 3x + 4 <= 0

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20. 2x ^ 2 - 32x + 56 < 0

21. x ^ 2 - 10x - 96 < 0

3 0
3 years ago
Please help &lt;3!!!!!!!!!
GREYUIT [131]

Answer:

D

Step-by-step explanation:

the picture is extremely diffuse and out of focus.

but I think I understood the content.

first the easiest part : the straight line on the right side of the graph.

we see the y increases exactly like the x. so, x increases by 2, then y increases by 2 too.

therefore the slope is 1 (y change / x change), and the function is simply y = x

and the line only starts with x=2 and goes on for all x greater than 2.

just for that alone it can be only D, because all the other answer options violate that behavior.

and the left part of the function must confirms this.

first of all, it has to be for x < 2 (again, only D).

and I found |-x²| really funny. this is the same as simply x², as a squared number can only be positive. so, making it negative and then taking the absolute value of that result creates the same original positive number again.

and x² can't be the function, because that would be a parabola that starts at the origin (0, 0), and then curves up left and right from there.

so, this can't be our function in the graph.

again, D is the the only fitting answer.

6 0
2 years ago
What two numbers multiply together to equal -32 and add together to equal positive four
Andru [333]
Because multiply of these two number get you -32, one of these number must be negative.

And because sum of them are positive, positive number must be larger than that negative number (without minus sign)

So list of possible answers are:

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3 years ago
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Answer:

Seven million two thousand five hundred in standard form is 7002500

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