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sveta [45]
3 years ago
11

2 + 3y + 9z = 4 - x + 8y - 6z = 4 x + 3y +3z = 10

Mathematics
1 answer:
ASHA 777 [7]3 years ago
8 0

Answer:

x = 62 /9     y = 11 /9   z = − 5 /27

Step-by-step explanation:

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Of the 13,955,000 Asians age 25 and over in the U.S.,8,107,000have completed at least a bachelors degree. What percentage is thi
expeople1 [14]

Answer:

Step-by-step explanation:

You just need to divide the number of people with degrees (about 8 million) by the total number of Asians (about 14 million)  and multiply by 100

8107000

========        * 100 = 0.58094 * 100 = 58.094%

13955000  

Which is a very high %

8 0
3 years ago
Samuel can type nearly 40 words per minute. Use this information to find the number of hours it would take him to type 3.2 × 105
Oliga [24]

The hours it would take to type 3.2 x 10^5 words is 1.33 x 10^2  hours.

<h3>How many hours would it take to type 3.2 x 10^5 words?</h3>

Standard form is used in expressing large numbers in smaller numbers. It is used to transform large numbers into smaller number.

In order to write a number in standard form, the number is written as a decimal number, between 1 and 10 and multiplied by a power of 10.

For example: 1 x 10² is equivalent to 100

The first step is to determine how many words he can type in 1 hour : 40 x 60 = 2400 words = 2.4 x 10³

The second step is to divide 3.2 x 10^5 words by 2.4 x 10³

3.2 x 10^5 ÷ 2.4 x 10³ = 1.33 x 10^(5 - 3)

1.33 x 10^2  hours

To learn more about standard form, please check: brainly.com/question/25334755

#SPJ1

3 0
2 years ago
Solve four square root of six plus eight square root of four and explain whether the answer is rational or irrational.
Oksana_A [137]

Answer: 4√6 +16

Step-by-step explanation: irrational

3 0
3 years ago
Rectangle A is a scaled version of rectangle B. The dimensions of rectangle A are three times the dimensions of rectangle B. The
Firlakuza [10]

Answer:

1458 sq cm

Step-by-step explanation:

because each dimension of A is 3 tomes each dimension of B, that will mean that both the length and width of B are multiplied by 3 in order to get the length and width of A, so the area of B is length×width=162 and the area of A (in terms of B's dimensions) is 3xlength×3×width=9×length×width=9×162=1458 sq cm

7 0
4 years ago
How can I do this, can you explain me
Sergio039 [100]

Answer:

Step-by-step explanation:

Start with h(t) = -16t^2 + initial height, which here is h(t) = -16t^2 + 1296.  Set this = to zero, which corresponds to the object hitting the ground (h = 0):

0 = -16t^2 + 1296.  Dividing all terms by -16, we get t^2 = 81, whose positive square root is 9.  It takes 9 seconds for the object to hit the ground.

3 0
3 years ago
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