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3 years ago

Which answer choice is a solution to the inequality 1.5x + 3.75≥5.5

Mathematics

2 answers:

djyliett [7]3 years ago

5 0

Answer:

$x \geq \frac{7}{6}$

The value of x is greater than or equal to 7/6

Step-by-step explanation:

$1.5x + 3.75\geq 5.5$

Solve the inequality for x

Subtract 3.75 from both sides

$1.5x + 3.75\geq 5.5$

$1.5x \geq 1.75$

Now divide both sides by 1.5

$x \geq \frac{1.75}{1.5}$

Simplify the fraction by dividing top and bottom by 0.25

$x \geq \frac{7}{6}$

The value of x is greater than or equal to 7/6

Solnce55 [7]3 years ago

4 0

Answer:

1.5 is the answer.

Step-by-step explanation:

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olga2289 [7]

Answer:

a) $E(Y) = \sum_{i=1}^n Y_i P(Y_i)$

And replacing we got:

$E(Y) =0*0.60 +1*0.25 +2*0.1 +3*0.05 = 0.60$

b) $E(Y^2) =0^2*0.60 +1^2*0.25 +2^2*0.1 +3^2*0.05 = 1.1$

And then the expected value would be:

$E(100Y^2) = 100*1.1= 110$

Step-by-step explanation:

We assume the following distribution given:

Y 0 1 2 3

P(Y) 0.60 0.25 0.10 0.05

Part a

We can find the expected value with this formula:

$E(Y) = \sum_{i=1}^n Y_i P(Y_i)$

And replacing we got:

$E(Y) =0*0.60 +1*0.25 +2*0.1 +3*0.05 = 0.60$

Part b

If we want to find the expected value of $100 Y^2$ we need to find the expected value of Y^2 and we have:

$E(Y^2) = \sum_{i=1}^n Y^2_i P(Y_i)$

And replacing we got:

$E(Y^2) =0^2*0.60 +1^2*0.25 +2^2*0.1 +3^2*0.05 = 1.1$

And then the expected value would be:

$E(100Y^2) = 100*1.1= 110$

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2 years ago

x2y - 2xy - 24y = y(x2 - 2x - 24) What is the completely factored form of x2y – 2xy – 24y? (xy + 4)(x – 6) xy(x + 4)(x – 6) y(x

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we are given

$x^2y-2xy-24y=y(x^2-2x-24)$

now, we can factor out right side term

$x^2-2x-24=x^2-6x+4x-6*4$

$x^2-2x-24=(x-6)(x+4)$

now, we can plug back

and we get

so,

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stellarik [79]

Answer:

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