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3 years ago

I'm failing this class, help me.

Mathematics

1 answer:

Liula [17]3 years ago

6 0

11) x = 110
12) x = 84
13) x = 180 - 100 = 80
14) x =111
15) x =125
16) x = 47
17) x = 53
18) x = 113

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Write a fraction less than 1, with a demoninator of 6 that is greater than 3/4

timofeeve [1]

I believe it could be 5/6 ? I don’t know.

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3 years ago

x P(x) 0 0.25 1 0.3 2 0.1 3 0.35 Find the standard deviation of this probability distribution. Give your answer to at least 2 de

barxatty [35]

Answer:

The standard deviation of this probability distribution is 1.2.

Step-by-step explanation:

We have that:

P(X = 0) = 0.25

P(X = 1) = 0.3

P(X = 2) = 0.1

P(X = 3) = 0.35

Mean:

Each value multiplied by its probability. So

$M = 0*0.25 + 1*0.3 + 2*0.1 + 3*0.35 = 1.55$

Variance:

Sum of the squares of the values subtracted from the mean, and multiplied by its probability.

$V = 0.25*(0-1.55)^2 + 0.3*(1-1.55)^2 + 0.1*(2-1.55)^2 + 0.35*(3-1.55)^2 = 1.4475$

Standard deviation:

Square root of the variance. So

$S = \sqrt{V} = \sqrt{1.4475} = 1.2$

The standard deviation of this probability distribution is 1.2.

6 0

3 years ago

Express 24.357 in unit form

Vaselesa [24]

2 tens, 4 ones, 3 tenths, 5 hundredths, 7 thousandths

6 0

3 years ago

Is 1.3 million bigger than 65 million

gtnhenbr [62]

Answer:

Step-by-step explanation:

because 1.3m is small

and 65M is very big I need 65m

8 0

2 years ago

Which function describes the arithmetic sequence shown?

Lynna [10]

f(x)= -2x-3

Step-by-step explanation:

Step 1:

Let the sequence given here is -5, -7, -9, -11, -13 ......

Here the first term (a₁) of sequence is -5

And the common difference between the numbers in the sequence is

d= (-7-(-5)) = -7+5 = -2

Let the number of terms be x

Step 2;

To find the sequence function basic arithmetic sequence formula is

aₙ = a₁ + d( x-1)

Applying the values we get

f(X) = -5 + ((-2)(X-1))

on simplification

f(X) = -5 + (-2X+2)

f(X)= -5+2-2X

f(X)= -3-2X

8 0

3 years ago