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damaskus [11]
4 years ago
7

The life of a certain brand of battery is normally distributed, with mean 128 hours and standard deviation 16 hours. What is the

probability that a battery you buy lasts at most 100 hours? Standardize the variable.
Mathematics
1 answer:
Katyanochek1 [597]4 years ago
7 0

Answer:

x = 100 is equivalent to z = -1.75

Step-by-step explanation:

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What is the simplified form of -24m^5 n^4/ 8m^-7 n^-2
solong [7]

Answer:

  -3·m^12·n^6

Step-by-step explanation:

We assume you intend ...

  (-24·m^5·n^4)/(8·m^-7·n^-2)

  = (-24/8)·m^(5-(-7))·n^(4-(-2))

  = -3·m^12·n^6

_____

If you really intend what you have written, then it simplifies to ...

  (-24·m^5·n^4/8)·m^-7·n^-2 . . . . . note that all factors involving m and n are in the numerator

  = (-24/8)·m^(5-7)·n^(4-2) = -3n^2/m^2

8 0
3 years ago
Solving Quardratic Equation <br><br>x^3 + 5x^2 -16x - 80 = 0
Cloud [144]
This is not a quadratic equation.
It is a cubic equation.
X1 = 4
X2 = -5
X3 = -4


4 0
3 years ago
The length of a rectangle is 2 inches more than its width. The perimeter of the rectangle is 24 inches. The equation 2x + 2(x +
alexandr1967 [171]
2x + 2(x + 2) = 24
2x + 2x + 4 = 24
4x = 24 - 4
4x = 20
x = 20/4
x = 5

The value of x that holds true for the equation is : x = 5.
So the width of the rectangle is 5 inches and the length is (x + 2 = 5 + 2) = 7 inches
7 0
4 years ago
QUICK HELP ME DUE IN 3 MINUTES 123456789x123456789
sammy [17]

Answer:

1.5241579e+16 is the answer

5 0
3 years ago
Read 2 more answers
Please help and I will mark big brain ​
irga5000 [103]

Answer: 6

Step-by-step explanation:

(41--1)/ (8-1)  = 42/7 = 6

3 0
3 years ago
Read 2 more answers
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