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yuradex [85]
3 years ago
10

How do you do this question?

Mathematics
1 answer:
klio [65]3 years ago
5 0

Answer:

positive

Step-by-step explanation:

Find the sign of (2-2x+y) for any point (x,y) in quadrant 2.

In quadrant 2, the x's are negative and the y's are positive.

So choose a negative value for x and a positive value for y and evaluate:

2-2x+y

Let's try (-4,5):

2-2(-4)+5

2+8+5

15 (positive)

Let's try(-1/2 , 10):

2-2(-1/2)+10

2+1+10

3+10

13 (positive)

Let's try in general Let (x,y)=(-a,b) where a and b are positive:

2-2(-a)+b

2+2a+b

Since a and b are positive, then 2+2a+b is positive because you are adding three different positive numbers.

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Which is equivalent to 2(5m)+m? options are 11m, 12m, 5m+2 or 7m+2m
zlopas [31]

Answer:

11m

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
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<u>Algebra I</u>

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Step-by-step explanation:

<u>Step 1: Define expression</u>

2(5m) + m

<u>Step 2: Simplify</u>

  1. Multiply:                    10m + m
  2. Add:                          11m
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3 years ago
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Answer:

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How do u get the area of a circle?
galina1969 [7]

Answer: πr^2

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Recalling that 1 hour = 60 minutes, we convert '3 hours 35 minutes' to

3 + (35/60) hours, or 3 35/60 hours, or 3.5833 hours.

Since distance = (rate)(time),

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The inequality log8(2x) &lt; log2(x – 2) can be graphed on the graphing calculator by using the inequalities log8(2x) &lt; y and
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answer on edg

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