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Setler [38]
3 years ago
7

How many possible outcomes exist when four fair coins are flipped?

Mathematics
2 answers:
slavikrds [6]3 years ago
7 0
Sooooooooo many, I tried, try findin the LCM
jarptica [38.1K]3 years ago
4 0
I'm pretty sure its 1/8
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weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probabi
kenny6666 [7]

Answer:

0.34134

Step-by-step explanation:

In other to solve for this question, we would be using the z score formula

z = (x - μ) / σ

x = raw score

μ = mean

σ = Standard deviation

We are told in the question to find the probability that a worker selected at random makes between $350 and $400

let x1 = 350 and x2= 400 with the mean μ = 400 and standard deviation σ = $50.

z1 = (x1 - μ) / σ = (350-400) / 50 = -1

z2 = (x2 - μ) / σ = (400 - 400) / 50 = (0/50) = 0

From tables, P(z <= -1) = 0.15866

P(z <= 0) = 0.5

Then, the probability would give us, P(-1 ≤ z ≤ 0) =0.5 - 0.15866 =

0.34134

Hence, The probability that a worker selected at random makes between $350 and $400 = 0.34134

7 0
3 years ago
Find slope and y-intercept<br> 5x+3y=-6
katen-ka-za [31]

Answer:

m=-\frac53; q=-2

Step-by-step explanation:

Let's bring the line in the classical y=mx+q form

3y= -5x-6\\y=-\frac53 x -2

At this point we have the two values -\frac53 for the slope and 2 for the intercept

6 0
2 years ago
What is the slope of line QR if Q(11,-2) and R(11,6)
jeka57 [31]

Answer:

noe lsoocslo oqiuepcn

Step-by-step explanation:

mcm

8 0
3 years ago
Me need help on math:(
sladkih [1.3K]

Answer:

-6 is the answer

Step-by-step explanation:

3 0
3 years ago
The formula for the volume of a cone is V = jarh, where V is the volume, r is the radius, and h Is the heightWhat is the volume
olga nikolaevna [1]

Given:

The radius, r=4x

The height,

h=21xy^2

To find the volume of the cone:

The volume of the cone formula is,

V=\frac{1}{3}\pi r^2h

Substitute the values of r and h in the above formula we get,

\begin{gathered} V=\frac{1}{3}\pi\times(4x)^2\times21xy^2 \\ =\frac{1}{3}\pi\times16x^2\times21xy^2 \\ =\pi\times16x^2\times7xy^2 \\ =112\pi x^3y^2 \end{gathered}

Hence, the volume of the cone is

V=112\pi x^3y^2

Thus, the correct option is option D.

7 0
1 year ago
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