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gayaneshka [121]
3 years ago
11

- 7 - 9 = 7+(-9) Add.

Mathematics
2 answers:
sergiy2304 [10]3 years ago
7 0
The answer is True , I just answered this question
Tomtit [17]3 years ago
7 0

Answer:

-2=-2

Step-by-step explanation:

yes both are equal

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Suppose that the useful life of a car battery, measured in months, decays with parameter 0.03 . We are interested in the life of
scZoUnD [109]

Answer:

a) X ~ e(0.03)

b) μ = 100/3

c) \sigma = 100/3

d) A battery is expected to last 100/3 months (33 months and 10 days approximately).

e) For seven batteries, i would expect them to last 700/3 months (approximately 19 years, 5 months and 10 days).

Step-by-step explanation:

a) The life of a battery is usually modeled with an exponential distribution X ~ e(0.03)

b) The mean of X is μ = 1/0.03 = 100/3

c) The standard deviation is \sigma = 1/0.03 = 100/3

d) The expected value of the bateery life is equal to its mean, hence it is 100/3 months.

e) The expected value of 7 (independent) batteries is the sum of the expected values of each one, hence it is 7*100/3 = 700/3 months.

4 0
3 years ago
What is the lmc for 6 and 14
lana [24]

Answer:

The Lcm is 42/

Step-by-step explanation:

Least common multiple (LCM) of 6 and 14 is 42.

Hope that helped.

5 0
2 years ago
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What does (2x−2)(3x+5) equal?
saw5 [17]

Answer:

6x² + 4x + 10

Step-by-step explanation:

(2x - 2)(3x + 5)

2x(3x + 5) - 2(3x + 5)

6x² + 10x - 6x + 10

6x² + 4x + 10 ans.

hope this helps you !

4 0
2 years ago
Find the area of this parallelogram.
Grace [21]
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i hope it helped
3 0
3 years ago
If the diameter of a circle is 12 feet, then the radius of the circle is
zhuklara [117]
The radius is 6 feet. The radius will always be half of whatever the diameter is
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3 years ago
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