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Ostrovityanka [42]
3 years ago
8

We know parallelograms have opposites sides

Mathematics
2 answers:
Art [367]3 years ago
8 0

Answer:

the opposites sides are always equal in length ,  also the formula for a  parallelogram is base x height

Step-by-step explanation:

ruslelena [56]3 years ago
7 0

Answer:

Parellagrams has 4 sides and they are not equal/

Step-by-step explanation:

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The average lifetime of a certain new cell phone is 3.4 years. The manufacturer will replace any cell phone failing within three
melisa1 [442]

Answer:

68% of these phones last 3.87 years.

Step-by-step explanation:

Exponential distribution:

The exponential probability distribution, with mean m, is described by the following equation:

f(x) = \mu e^{-\mu x}

In which \mu = \frac{1}{m} is the decay parameter.

The probability that x is lower or equal to a is given by:

P(X \leq x) = \int\limits^a_0 {f(x)} \, dx

Which has the following solution:

P(X \leq x) = 1 - e^{-\mu x}

The probability of finding a value higher than x is:

P(X > x) = 1 - P(X \leq x) = 1 - (1 - e^{-\mu x}) = e^{-\mu x}

The average lifetime of a certain new cell phone is 3.4 years.

This means that m = 3.4, \mu = \frac{1}{3.4} = 0.2941

So

P(X \leq x) = 1 - e^{-0.2941x}

68% of these phones last how long (in years)?

This is x for which:

P(X \leq x) = 0.68

P(X \leq x) = 1 - e^{-0.2941x}

Then

0.68 = 1 - e^{-0.2941x}

e{-0.2941x} = 0.32

\ln{e{-0.2941x}} = \ln{0.32}

-0.2941x = \ln{0.32}

x = -\frac{\ln{0.32}}{0.2941}

x = 3.87

68% of these phones last 3.87 years.

4 0
3 years ago
Simplify each expression.<br> 1) - 4x – 5(8 +4+)
Pepsi [2]
The answer is -4x-60
7 0
3 years ago
The mass of a textbook is about 1.25 kilograms.About how many pounds is this?
ankoles [38]
1.25kg = 2.75577828 pounds
5 0
4 years ago
Luis earns a base salary of $150 every week with an additional 14% commission on everything he sales Luis sold $6050.00 worth of
Yakvenalex [24]
His total pay was $997.

We use the equation
y=150+0.14x 
to represent this, were y is his total pay and x is the amount of sales he has.  Using our information, we have

y=150+0.14(6050) = 150+847 = 997
5 0
3 years ago
How do you Estimate the Product of Decimals and Whole
PtichkaEL [24]

Answer:

1) 8.5

2) 60

3) 69.3

4) 6.8

5) 3.6

6) 10.5

Step-by-step explanation:

Take out the decimal of the estimated factors and multiply. Count how far to left the decimal is in the factors. In the product, put the decimal as many to the left as it was in the factors. (ex. 6.93 x 42, 6.93 rounds to 6.9, 42 rounds to 40, 69 x 40 = 2,760, move the decimal over one for correct place value,            6.9 x 40 = 276.0 <em>or </em>276)

8 0
3 years ago
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