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harkovskaia [24]
4 years ago
10

2x-2y+z=3 5y-z=-31 x+3y+2z=-21​

Mathematics
1 answer:
hjlf4 years ago
4 0

Answer:

Step-by-step explanation:

{x,y,z}={−5,−6,1}

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Write the following expression using symbolic language.
Ad libitum [116K]

Answer:

<h3>              1)   7x - 5 </h3><h3>              2)   9y - 18 </h3><h3>              3)   0.5n + 4n </h3><h3>              4)  2(w³+23)</h3><h3> Step-by-step explanation:</h3>

1)

The product of seven and a number x:   7·x = 7x

<u>Five less than the product of seven and a number x:</u>

<h3>7x - 5 </h3>

2)

nine times a number y:  9·y = 9y

<u>The difference of nine times a number y and eighteen:</u>

<h3>9y - 18 </h3>

3)

half a number n:   0.5n

four times the number:   4·n = 4n

<u>Half a number n increased by four times the number:</u>

<h3>0.5n + 4n </h3>

4)

a number w cubed:  w³

the sum of a number w cubed and twenty-three:  w³+23

<u>Twice the sum of a number w cubed and twenty-three:</u>

<h3>2(w³+23)</h3>

5 0
3 years ago
2<br> 10x2 - 724<br> 100x2 + 140xy + 4972 10x + 7y
Fiesta28 [93]

Answer:

14xy/(10x+7y)^

Step-by-step explanation:

5 0
3 years ago
Explain the difference between multiplying by powers of 10 when the exponent is a positive number and when the exponent is a neg
arlik [135]

Answer:

a negative number makes fractions. a positive one makes bigger number

Step-by-step explanation:

8 0
4 years ago
This Stem-and-Leaf Plot represents test scores of students in a math class. If two test scores, 68 and 75, are added to the data
sveticcg [70]

The median will change; the mode will stay the same.

<h3>Will the median and mode change?</h3>

The median is the number that is at the center of a data set when the data are arranged either in ascending or descending order.

Median = 23

When 68 and 75 are added, the median would change.

Mode refers to a value that appears most frequently in a data set.

The mode = 75

So, when 75 is added, the mode does not change.

To learn more about mode, please check: brainly.com/question/16505756

#SPJ1

6 0
2 years ago
Find the pattern in the Fibonacci sequence and identify the next two terms.
klasskru [66]

For the Fibonacci sequence you add the two previous numbers. You always start with 0, 1 and you add 0 and 1 which makes 1 then 1 + 1 makes two and so on. The next number in the sequence would be 34 + 55, meaning 89, and after that would be 55 + 89, or 144.

5 0
4 years ago
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