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VMariaS [17]
4 years ago
5

Evaluate please 2x+(−6)∙(y+1) for x=−1.5 and y=−3

Mathematics
2 answers:
Andreyy894 years ago
8 0
First, you plug your given values in. Since x is 1.5, it will be multiples by 2x to get 3.2. Since y is -3, it will be added to 1 to get -2. Finally, the two are multiplied together to get -6.4 if I am correct. 
DochEvi [55]4 years ago
8 0

Answer:

9

Step-by-step explanation:

2 multiplied by -1.5 = -3.0

y + 1 = -2

So, the equation would be:

-3 - 6 multiplied by -2

Using the rule of PEMDAS, you would multiply -6 and -2 first, making the new equation now:

-3 <u>+</u> 12

12 - 3 = <u>9,</u> resulting in the answer.

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Brut [27]
The answer rounded would be .83. I got this by writing out the equation each hour. For example, 1/2+1/2+1/2+1/2+6+1/2+1/2+1/2+1/2+0+0+0 = 10. Then, to find the average you divide them out by the amount of numbers. This would give you 10 divided by 12.
7 0
3 years ago
A triangle has a vertices at (2,3), (-1,-2) and (-3,1). what is the approximate perimeter of the triangle?
rjkz [21]
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6 0
3 years ago
Does the table show a direct proportional relationship? If so, what is the constant of proportionality? X 4 7 12 Y 32 56 96
dalvyx [7]
<h3>Answer: Yes we have a direct proportional relationship</h3><h3>constant of proportionality = 8</h3>

equation is y = 8x

=============================================

Explanation:

Divide each x and y pair like so: y/x

If we get the same result each time, then we have a direct proportion.

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6 0
3 years ago
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Novay_Z [31]

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Hope that helps :)

6 0
4 years ago
The input-output diagram represents F(x) = x+2.What is the missing output value?A. 7B. 5C. 8D. 6
asambeis [7]

Given

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To find the missing value in the diagram.

Now,

From the diagram the value of x is 5.

Then, substitute the value of x in the given equation.

That implies,

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Hence, the missing value is 7.

3 0
1 year ago
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