3 years ago

Giving out brainliest!

Mathematics

1 answer:

olya-2409 [2.1K]3 years ago

5 0

Answer:

x = 1.5

Explanation:

If you were to divide 1.2 by both sides, you would get x = 1.5

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Solve 3x - 4 ≤ 2 or 2x + 11 ≥ -1

Rufina [12.5K]

1.) 3x -4 <_ 2
Add 4 to both sides.
-4 + 4 = 0
2 + 4 = 6
3x <_ 6
Divide both sides by 3.
3x / 3 = x
6 / 3 = 2
x <_ 2 is your answer for the first inequality.

2.) 2x + 11 _> -1
Subtract 11 from both sides.
11 - 11 = 0
-1 -1 = -2
2x _> -12
Divide both sides by 2.
2x / 2 = x
-12 / 2 = -6

x _> -6 is your answer for the second inequality.

I hope this helps!

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3 years ago

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Answer:

x = -15

Step-by-step explanation:

$\dfrac{1}{3}x = -5$

Multiply both sides by 3.

$3 \times \dfrac{1}{3}x = 3 \times (-5)$

$x = -15$

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3 years ago

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(explanation attached)

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3 years ago

A lightbulb is installed. With probability 1/3 , it burns out immediately when it is first installed. With probability 2/3 , it

Andrej [43]

Answer:

1 time unit

Step-by-step explanation:

There is a 1 in 3 chance that the time until the bulb burns out is zero, and a 2 in 3 chance that the time is the average between 0 and 3 (since it is uniformly distributed). Therefore, the expected value for the time until it burns is:

$E(x) = \frac{1}{3}*0+\frac{2}{3} *\frac{0+3}{2}\\ E(X) = 1$

The expected value of the time until the lightbulb burns out is 1 time unit.

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Please help Exponential functions have extreme or an extreme points<br> True or false

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Ima say false sorry if I right

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