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mart [117]
3 years ago
5

Determine if the ordered pair (-5, -1) is a solution of 2x - y =-11.

Mathematics
2 answers:
Marrrta [24]3 years ago
7 0
No, when you plug is -5 for x and -1 for why, it ends up being -9 not -11. (-5,-1) is not a solution.
scoundrel [369]3 years ago
7 0

Answer:(-5,-1) is not an ordered pair

Step-by-step explanation:

the ordered pair (-5,-1) is directly related to the variables (x,y) making -5=x and -1=y

so to figure out if the ordered pair is a solution you just plug in the number into their respective variable.

so the equation then becomes 2 (-5) - (-1) = -11

once you solve for the left part of the equation you are then left with -9 = -11 which we know is false.

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B. Up

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1 year ago
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Complete parts (a) and (b) using the probability distribution below.
katen-ka-za [31]
Μ = (0×0.026) + (1×0.072) +(2×0.152) + (3×0.303) + (4×0.215) + (5×0.164) + (6×0.066) 
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We need the value of ∑X² to work out the variance
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Variance = ∑X² - μ²
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Standard Deviation = √Variance = √1.8 = 1.3416... ≈ 1.4

The correct answer related to the value of mean and standard deviation is the option D
<span>
An employee works an average of 3.4 overtime hours per week with a standard deviation of approximately 1.4 hours.</span>
7 0
3 years ago
the case of napkins contained 45 packs with a total of 10,125 napkins. each napkin contained the same number of napkins. write a
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You would need to do 10,125/45 = n, and in which case we just solve. 
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Hope this helps and have a nice day:)
7 0
2 years ago
Two numbers have theses properties . both numbers are greater than 6 . their hcf = 6 . their lcm = 60. what are the two numbers
aleksandrvk [35]
Let the numbers be x and y.
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out of the above, only (6,60) and (12,30) satisfy both conditions. Thus our answer is:
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2 years ago
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D pls, very simple :)
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