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3 years ago

Solve the system of equations using Gaussian Elimination method.

Mathematics

1 answer:

marysya [2.9K]3 years ago

4 0

Answer:

i was W Bush administration and I have been there before the

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1. 3,742 x 6= help with step by step

xenn [34]

Answer: The answer is 22,452

Step-by-step explanation: Multiply 6×2 which will be 12

Put the 1 from the 12 on top of the 4 then do 4×6+1 it will equal 25

Then put the 2 on top of the 7 then do 7×6+2 it will equal 44

Then put the 4 on top of the 3 then do 3×6+4 it will equal 22

And that's how you get your answer.

5 0

3 years ago

A painter is painting a mural on a wall. He has a 25-foot ladder. He needs to work on a part of the wall that is 24 feet above t

ICE Princess25 [194]

Answer: 7 feet

Step-by-step explanation:

4 0

3 years ago

During the day the temperature was -3 Fahrenheit at night the temperature dropped 19 Fahrenheit what was the temperature at nigh

Sholpan [36]

Answer:

-22 degrees Fahrenheit

Step-by-step explanation:

-3 - 19 = -22

5 0

3 years ago

A duplex generates $1,400 rent for each of its two units per month. The property has been recently appraised for $350,000. What

VLD [36.1K]

The gross income multiplier (GIM) is the ratio of sale price to annual rental income. Here, you have ...
GIM = $350,000/(12*2*$1400) ≈ 10.4

7 0

2 years ago

50 students live in a dormitory. The parking lot has the capacity for 30 cars. Each student has a car with probability 12 , inde

Maurinko [17]

Answer:

P(X is greater than 30) = 0.06

Step-by-step explanation:

Given that:

Sample proportion (p) = 0.5

Sample size = 30

The Binomial can be approximated to normal with:

$\mu = np = 50 \times 0.5 \\ \\ \mu= 25$

$\sigma = \sqrt{np(1-p) } \\ \\ \sigma = \sqrt{50 \times (0.5)(1-0.5) } \\ \\ \sigma = 3.536$

To find:

P(X> 30)

So far we are approximating a discrete Binomial distribution using the continuous normal distribution. 30 lies between 29.5 and 30.5

Normal distribution:

x = 30.5, $\mu$ = 25, $\sigma$ = 3.536

Using the z test statistics;

$z = \dfrac{x - \mu}{\sigma}$

$z = \dfrac{30.5 - 25}{3.536}$

$z = \dfrac{5.5}{3.536}$

z = 1.555

The p-value for P(X>30) = P(Z > 1.555)

The p-value for P(X>30) = 1 - P (Z< 1.555)

From the z tables;

P(X> 30) = 1 - 0.9400

Thus;

P(X is greater than 30) = 0.06

7 0

2 years ago