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11Alexandr11 [23.1K]
3 years ago
9

50 points and brain thing!!! Please show proof for the question above

Mathematics
1 answer:
Elina [12.6K]3 years ago
4 0

Answer:

Ight...

Step-by-step explanation:

Hi

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I need help on this question can someone please help me?
Svetllana [295]

I really hate these algebra problems pretending to be geometry.  

Anyway angles B and D  are congruent in a parallelogram.  Geometry part done.

4n - 2 = 2n + 32

2n = 34

n = 17

Answer: 17, which is the 3rd choice

3 0
3 years ago
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Help me on my geometry hw it’s due in 25 minutes
icang [17]

Answer:

now just half the first triangals answers

Step-by-step explanation:

x =21

y=24

<u>TH</u>=24          <u>PQ</u>=12

<u>RH</u>=24          <u>NQ</u>=12

<u>RT</u>=21            <u>NP</u>=10.5

>T=80            >P=80

>H=20           >Q=20

>R=80           >N=80

8 0
2 years ago
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Suppose X has an exponential distribution with mean equal to 23. Determine the following:
e-lub [12.9K]

Answer:

a) P(X > 10) = 0.6473

b) P(X > 20) = 0.4190

c) P(X < 30) = 0.7288

d) x = 68.87

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}

Mean equal to 23.

This means that m = 23, \mu = \frac{1}{23} = 0.0435

(a) P(X >10)

P(X > 10) = e^{-0.0435*10} = 0.6473

So

P(X > 10) = 0.6473

(b) P(X >20)

P(X > 20) = e^{-0.0435*20} = 0.4190

So

P(X > 20) = 0.4190

(c) P(X <30)

P(X \leq 30) = 1 - e^{-0.0435*30} = 0.7288

So

P(X < 30) = 0.7288

(d) Find the value of x such that P(X > x) = 0.05

So

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

0.05 = e^{-0.0435x}

\ln{e^{-0.0435x}} = \ln{0.05}

-0.0435x = \ln{0.05}

x = -\frac{\ln{0.05}}{0.0435}

x = 68.87

5 0
3 years ago
as a part of its diet, a pacific seahorse eats about 56 shrimp per week.It eats the same amount each day
Furkat [3]

Answer:

The Pacific seahorse eats  8 shrimp per day

Step-by-step explanation:

<u><em>The complete question is</em></u>

As a part of its diet, a Pacific seahorse eats about 56 shrimp per week. It eats  the same amount each day.

a) How much shrimp does the Pacific seahorse eat per day?

Complete the statement with the unit rate.

The Pacific seahorse eats  _____ shrimp per day.

Part a) How much shrimp does the Pacific seahorse eat per day?

Let

x ---> the number of shrimp that the Pacific seahorse eats per day

we know that

The number of shrimp that the Pacific seahorse eats per day, multiplied by the number of days in a week, must be equal to 56 shrimp

1\ week=7\ days

so

The linear equation that represent this situation is equal to

7x=56

solve for x

Divide by 7 both sides

x=8\ shrimp

therefore

The Pacific seahorse eats  8 shrimp per day

5 0
3 years ago
A bag contains 9 marbles: 2 are green, 4 are red, and 3 are blue. Mary chooses a marble at random, and without putting it back,
amm1812
There is a 2/9 chance that both marbles drawn will be blue.
7 0
3 years ago
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