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Viktor [21]
3 years ago
15

What is the simplified form of x+8/4-x+5/4?

Mathematics
2 answers:
GaryK [48]3 years ago
7 0

Hzhsususuhhhdhdhhddhdhhdjxxj

Romashka [77]3 years ago
7 0

For this case, we must simplify the following expression:

\frac {(x + 8)} {4} - \frac {(x + 5)} {4}

They are fractions with the same denominator, they can be subtracted in the traditional way. We must bear in mind that the law of the signs of multiplication states:

- * + = -

So:

\frac {(x + 8)} {4} - \frac {(x + 5)} {4} = \frac {x + 8-x-5} {4} = \frac {x-x + 8- 5} {4} = \frac {3} {4}

ANswer:

Option C

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-1/18

Step-by-step explanation:

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R:{(1,2),(1,−2),(−2,3)} Is this a function?
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If y=8 when x=4 find y when x=5
djyliett [7]

Answer:

y = 10 when x = 5

Step-by-step explanation:

When x = 4, y = 8

Simplify. Divide 4 from both x and y

x = 4/4 = 1

y = 8/4 = 2

when x = 1, y = 2

Next, solve for when x = 5. Mutliply 5 to both x and y

x = 1 * 5 = 5

y = 2 * 5 = 10

y = 10 when x = 5

~

7 0
3 years ago
Read 2 more answers
Suppose that the length of a phone call in minutes is an exponential random variable with parameter λ = 1/ 8. If someone arrives
Elis [28]

Answer:

a) P=0.535

b) P=0.204

c) P=0.286

Step-by-step explanation:

The exponential distribution is expressed as

F(x>t)=e^{-\lambda t}

In this example, λ=1/8=0.125 min⁻¹.

a) The probability of having to wait more than 5 minutes

F(x>5)=e^{-0.125*5}=e^{-0.625}=0.535

b) The probability of having to wait between 10 and 20 minutes

F(1020)=e^{-0.125*10}-e^{-0.125*20}\\\\F(10

c) The exponential distribution is memory-less, so it is independent of past events.

If you have waited 5 minutes, the probability of waiting more than 15 minutes in total is the same as the probability of waiting 15-5=10 minutes.

F(x>15|t^*=5)=F(x>15)/F(x>5)=\frac{e^{-0.125*15}}{e^{-0.125*5}}=e^{-0.125*(15-5)}\\\\ F(x>15|t^*=5)=e^{-0.125*(10)}=F(x>10)=0.286

5 0
3 years ago
he table shows the number of calories in different numbers of apples. Number of Apples 3 5 8 Number of Calories 195 325 520 How
lutik1710 [3]

Answer:

The correct answer is 585 colories. I know it is correct because I tooked the quiz.

Hope it helps! :)


7 0
3 years ago
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