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LuckyWell [14K]
3 years ago
7

What are Absolute Value Equations​

Mathematics
1 answer:
nikdorinn [45]3 years ago
5 0

Absolute Value Equations are equations that look like this:

I x + 5 I = 15

They have 2 solutions almost all the time. To solve this equation we do this:

x+5=15      x+5=-15

Then you solve them:

x+5=15      x+5=-15

x=15-5       x=-15-5

x=10           x=-20

The solutions would be x=10 and x=-20 .

In some cases, you only have one solution:

I x + 5 I = 0

0 cannot be negative, so we only have one equation to solve:

x+5=0

x=0-5

x=-5

The one solution would be x=-5 .

In some OTHER cases, you have no solution. This happens when the absolute value equation equals to a negative number:

I x + 5 I =-10

Absolute value solutions are always going to end up positive because absolute value turns the number, negative or positive, into a positive.

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Help me please, thank you! :)
EastWind [94]

Answer:

It's 16 units. Just look at the lengths and how many times they are on a shape. The shape is a rectangle, which means there will be two of each length, so just add them all together. 6+6+2+2=16

6 0
3 years ago
Find three consecutive integers such that that product of the first and third is one
Tema [17]

Answer:

n = the first

n + 1 = the 2nd

n + 2 = the 3rd

n(n + 2) - (n + 1) = 10(n + 2) + 1

n2 + 2n - n - 1 = 10n + 20 + 1

n2 - 9n - 22 = 0

(n - 11)(n + 2) = 0

If two factors = 0, at least one must = 0.

n - 11 = 0

n = 11

11,12,13

n + 2 = 0

n = -2

-2,-1,0

7 0
3 years ago
What is 53/200 as a percent.
taurus [48]
\frac { 53 }{ 200 } \\ \\ =\frac { 26.5 }{ 100 } \cdot \frac { 2 }{ 2 } \\ \\ =\frac { 26.5 }{ 100 } \cdot 1\\ \\ =\frac { 26.5 }{ 100 }

Therefore your answer is 26.5%.
4 0
3 years ago
Read 2 more answers
The source of the error when a computer system fails are either the disk drive, the computer memory, or the operating system. Ve
faltersainse [42]

Answer:

The probability of an operating system error given that a failure has ocurred is P(O/E)= 0.19

Step-by-step explanation:

Hello!

There are three different sources of error when a computer system fails:

D: disk drive error. ⇒ P(D)= 0.50

M: computer memory error. ⇒P(M)= 0.20

O: operating systems error. ⇒ P(O)= 0.30

According to the component perdormance standard:

The probability of failure "E", given that there is a disk drive error is P(E/D)= 0.40

The probability of failure "E", given that there is a computer memory error is P(E/M)= 0.6

The probability of failure "E", given that there is a operating system error is P(E/O)= 0.25

You need to calculate the probability of an operating system error given that a failure has ocurred, symbolically:

P(O/E)

P(O/E)= \frac{P(OnE)}{P(E)}

To reach the probability of the marginal E you have to add all intersections between the event "E" and the events "D", "M" and "O"

       D           M             O       Total

E:  P(E∩D); P(E∩M); P(E∩O);  P(E)

Using the formula of the conditional probability I'll clear all three intersections using the known probabilities:

General formula: P(A/B)= \frac{P(AnB)}{P(B)} ⇒ P(AnB)= P(A/B)*P(B)

P(E∩D)= P(E/D)*P(D)= 0.4*0.5= 0.2

P(E∩M)= P(E/M)*P(M)= 0.6*0.2= 0.12

P(E∩O)= P(E/O)*P(O)= 0.25*0.3= 0.075

P(E)= P(E∩D) + P(E∩M) + P(E∩O)= 0.2+0.12+0.075= 0.395

P(O/E)= \frac{P(OnE)}{P(E)} = \frac{0.075}{0.395}= 0.189 = 0.19

I hope it helps!

7 0
3 years ago
A costume costs $32.80. Today it is discounted 30%. How much did the costume cost today?
taurus [48]

Answer:

22.96

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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