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DaniilM [7]
3 years ago
7

The life spans of elephants in a Columbus zoo are normally distributed. The average elephant lives 60 years: the standard deviat

ion is 2 years. Find a range of elephant's life spans which lies within 1 standard deviation, about 68% Between 58 and 62 years Between 56 and 64 years Between 54 and 66 years Between 50 and 60 years
Mathematics
1 answer:
Marta_Voda [28]3 years ago
5 0

did u ever get the answer l need it


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What is the answer to this equation <br> 50x^2-32y^2/-5x-4y
LenKa [72]
                -10x   +8y
               --------------------
-5x - 4y ) 50x^2               - 32y^2
               50x^2 + 40xy
              -----------------
                          -40xy - 32y^2
                          -40xy  -32y^2
                         -------------------

answer is -10x + 8y

5 0
3 years ago
Read 2 more answers
Which property of addition is shown in the equation below? a bi 0 0i = a bi commutative property inverse property identity prope
Ronch [10]

The property of addition that is shown in the equation (a+bi)+(0+0i)=(a+bi) is the identity property of addition.

<h3>What is the Identity property of addition?</h3>

The identity property of addition states that when any number and 0 are added, the result will be the number itself.

The property of addition that is shown in the equation (a+bi)+(0+0i)=(a+bi) is the identity property of addition.

Learn more about Identity property of Addition:

brainly.com/question/1709448

6 0
2 years ago
What is the slope of the line described by the equation 4x + 6y = 12?
Eddi Din [679]
-2/3 is the correct answer
6 0
3 years ago
What is an equation of the line that passes through the point (-2,7) and is perpendicular to the line x-6y=42 ?
Natali5045456 [20]

Answer:

The equation of the line that passes through the point (-2,7) and is perpendicular to the line x-6y=42 is

6x+y=-5

Step-by-step explanation:

Given:  

Let,  

point A( x₁ , y₁) ≡ ( -2 , 7)

To Find:  

Equation of Line  that passes through the point (-2,7) and is perpendicular to the line x-6y=42=?  

Solution:  

x-6y=42    ..................Given

which can be written as

y=mx+c

Where m is the slope of the line

∴ y=\dfrac{x}{6}-7

On Comparing we get

Slope = m = \dfrac{1}{6}

The Required line is Perpendicular to the above line.

So,

Product of slopes = - 1

m\times m_{1}=-1\\Substituting\ m\\ \dfrac{1}{6} m_{1}=-1\\\\m_{1}=-6

Slope of the required line is -6

Equation of a line passing through a points A( x₁ , y₁) and having slope m is given by the formula,  

i.e equation in point - slope form

(y-y_{1})=m(x-x_{1})

Now on substituting the slope and point A( x₁ , y₁) ≡ ( -2, 7) and slope = -6 we get

(y-7)=-6(x--2)=-6(x+2)=-6x-12\\\\\therefore 6x+y=-5.......is\ the required\ equation\ of\ the\ line

The equation of the line that passes through the point (-2,7) and is perpendicular to the line x-6y=42 is

6x+y=-5

3 0
3 years ago
What are the five names for 34
agasfer [191]
30+4
10+24
20+14
17+17
2+32
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3 years ago
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