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monitta
2 years ago
14

What values do x and y have if |x|= 16, |y|= 16, and when does x and y are combined they equal 0? Explain your reasoni.

Mathematics
1 answer:
PIT_PIT [208]2 years ago
6 0
X and y have the values of 16 and -16, absolute value makes it so that the distance from a number to zero is what we must account for, and since both 16 and negative 16 have 16 points of difference to zero, these are plausible answers.
They will combine to equal zero if and only if one is positive 16 and the other is negative, thus showing that if the relationship has a given of having to equal 0, then a double positive or a double negative cannot also occur.
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morpeh [17]

Answer:

8cm = 0.08m

Step-by-step explanation:

8×10^-2 Because we convert

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What is equivalent to (x+8)(x+4)?<br>1.x^2+12x32<br>2.2x^2+10x+12<br>3.2x^2+12x+16<br>​
Elza [17]

Answer:

1. x^2+12x+32

Step-by-step explanation:

(x+8)(x+4)

x(x+4)+8(x+4)

x^2+4x+8x+32

x^2+12x+32

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An accelerated life test on a large number of type-D alkaline batteries revealed that the mean life for a particular use before
zheka24 [161]

Answer:

68.2% of the batteries failed between 17.8 and 20.2 hours.

95.44% of the batteries failed between 16.6 and 21.4 hours.

99.97% of the batteries failed between 15.4 and 22.6 hours.

Step-by-step explanation:

The 68-95-99.7 states that, for a normally distributed sample:

68.26% of the measures are within 1 standard deviation of the sample.

95.44% of the measures are within 2 standard deviations of the sample.

99.97% of the measures are within 3 standard deviations of the sample.

In this problem, we have that:

Mean of 19 hours, standard deviation of 1.2 hours.

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This is within 1 standard deviation of the mean. So 68.2% of the batteries failed between 17.8 and 20.2 hours.

About 95.44% of the batteries failed between what two values?

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About 99.97% of the batteries failed between what two values?

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Eight times a number plus five another number is -13. The sum of the two numbers is 1. What are the numbers?
Pani-rosa [81]
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translates to:

8(x) + 5(y) = -13

The sum of (the number) and (the other number) is 1.

translates to:

(x) + (y) = 1


We have a system of two equations involving two unknowns: x and y.

\rm 8x+5y=-13\\&#10;~~x+~~y=~~~~1

We can easily solve the system using Substitution or Elimination. Let's use Elimination this time.

We'll multiply the second equation by -8 so that the x's match up.

\rm ~~~8x+5y=-13\\ -8x-8y=-8

When we add the equations together, the x's will fall out of the equation, summing to zero. The 5y and -8y will sum to -3y and the right hand side will sum to -21.

\rm -3y=-21

Divide by -3,

\rm y=7

Plug back into one of your original equations to find the value of x,

\rm x+y=1\\&#10;x+7=1

Subtract 7,

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Answer:

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Step-by-step explanation:

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