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Irina-Kira [14]
3 years ago
15

X is a random independent variable with mean 20 and standard deviation of 5. Also suppose that y is a random independent variabl

e with mean of 40 and standard deviation 10. Find the variance and standard deviation of the random variable Z = 2 + 10x
Mathematics
1 answer:
klio [65]3 years ago
4 0
The variable equals 4.
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9x10to the power of -9
Deffense [45]
<h2>-Answer :</h2>

\large \boxed{0.000000009}

<h2><u>Solution</u> :</h2>

Here we go :

\rightarrow9 \times 10 {}^{ - 9}

\rightarrow \dfrac{9}{10 {}^{9} }

\rightarrow \dfrac{9}{1000000000}

\rightarrow0.000000009

\bold{ \mathfrak{hope \: it \: helps \: you......}}

4 0
3 years ago
Relationship B has a lesser rate than Relationship A. This graph represents Relationship A.Which equations could represent Relat
Black_prince [1.1K]
<h3>Answer:</h3>
  • y = x
  • y = (3/2)x
<h3>Explanation:</h3>

The rate shown in your graph is 3. (rise:run = 3:1) An equation with a lesser rate will have an x-coefficient that is less than 3. The x-coefficients in your answer choices appear to be ...

  • 1
  • 5
  • 4
  • 3/2

Of these values, only the first and last are less than 3.

3 0
3 years ago
What is the volume of the right triangular prism? Round to the nearest tenth.
Tatiana [17]

Answer:

613.8 meters cubed

Step-by-step explanation:

6.2x11x9=exactly 613.8 meters cubed

4 0
3 years ago
Read 2 more answers
Which side lengths form a right triangle?
STALIN [3.7K]

Answer:

8, 15, 17  and \sqrt{2} , \sqrt{2}, 2

Step-by-step explanation:

c=\sqrt{a^2+b^2}

33=/=\sqrt{5^2+\sqrt{8}^2 }

17=\sqrt{8^2+15^2}

2=\sqrt{\sqrt{2}^2+\sqrt{2}^2  }

3 0
3 years ago
You are knitting a blanket. You want the area of the planet to be 24ft^2. You want the length of the blanket to be 2ft longer th
frosja888 [35]
The area of the blanket - 24 ft²
length being longer than the width means that blanket is a rectangle 
width of the blanket = x 
length of blanket = x +2
area = length * width 
area = x * (x+2)
        = x² + 2x
since area = 24
x² + 2x = 24
x² + 2x - 24 = 0
we have a quadratic equation and we need to now solve for x
x² + 6x - 4x - 24 = 0
x (x + 6) - 4(x + 6) = 0
(x-4) (x+6) = 0
x-4 = 0    or x + 6 = 0
x = 4      or x = -6
x could be either 4 or -6. since dimensions cannot have negative values,
x ≠ -6
therefore x = 4
width = 4 ft
length = 6 ft 

7 0
3 years ago
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