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3 years ago

The mean of the following Data Set 5, 9, 3, 13, 5

Mathematics

2 answers:

Gnoma [55]3 years ago

7 0

Answer:

The mean is 7

Step-by-step explanation:

To find the mean, we add up all the numbers and divide by the number of numbers

(5+9+3+13+5)/5

35/5

lidiya [134]3 years ago

6 0

The answer is 7 . you need to add up all the numbers & divide it by the numbers you have

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Rewrite y^2(9y^2+4y-9) in standard form

Margaret [11]

Y²(9y² + 4y - 9)

Simplify.

(y² · 9y²) + (y² · 4y) + (y² · -9)

Simplify.

9y⁴ + 4y³ - 9y²

~Hope I helped!~

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3 years ago

Which equation is true when p=0.6

e-lub [12.9K]

Answer:

Step-by-step explanation:

Its not A because when you plug in 0.6 in for P it gives you 6.6=1.8. (0.6)+6=1.8

Its B because when you plug in 0.6 in for P it gives you 6=6.

10(0.6)=6

Its not C because when you plug in 0.6 in for P it gives you 0.36=10.

0.6(0.6)=10

Its not D because when you plug in 0.6 in for P it gives you -0.4=0.4.

(0.6)-1=0.4

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3 years ago

How much of the moons area can be seen from earths surface?

tamaranim1 [39]

B. 50% of the moons surface

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2 years ago

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Jake used a computer model to measure the force of gravity between objects that were at different distances from each other.

PilotLPTM [1.2K]

The answer of the question is A

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3 years ago

Solve the equation for all real solutions in simplest form.<br> z^2 - 12z +9= -3

Mars2501 [29]

Answer:

Solving the equation for all real solutions in simplest form.

$z^2 - 12z +9= -3$ we get $\mathbf{z=10.9\: or\: z=1.1}$

Step-by-step explanation:

We need to solve the equation for all real solutions in simplest form.

$z^2 - 12z +9= -3$

First simplifying the equation:

$z^2 - 12z +9+3= -3+3\\z^2 - 12z +12= 0$

Now, we can solve the equation using quadratic formula:

$z=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

we have a = 1, b=-12 and c=12

Putting values in formula and finding values of x

$z=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\z=\frac{-(-12)\pm\sqrt{(-12)^2-4(1)(12)}}{2(1)}\\z=\frac{12\pm\sqrt{144-48}}{2}\\z=\frac{12\pm\sqrt{96}}{2}\\z=\frac{12\pm9.8}{2}\\z=\frac{12+9.8}{2}\:or\:z=\frac{12-9.8}{2}\\z=10.9\:or\:z=1.1$

So, we get value of z: z=10.9 or z=1.1

Solving the equation for all real solutions in simplest form.

$z^2 - 12z +9= -3$ we get $\mathbf{z=10.9\: or\: z=1.1}$

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3 years ago