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xz_007 [3.2K]
3 years ago
8

Which terms could be used as the first term of the expression below to create a polynomial written in standard form? Select five

options. ___ + 8r2s4 – 3r3s3
5s7/6
s5
3r4s5
–r4s6
–6rs5
4r/6s
Mathematics
2 answers:
egoroff_w [7]3 years ago
4 0

Answer:

If the polynomial is written in standard form

the degree of Variables that is if it contains only a single variable or more than a variable , the sum of the degree of variables in a term is from Highest to lowest.

Sum of degrees of Variables second term which is 8r^2s^4\\\\=2+4\\\\=6

Sum of degrees of Variables in third term which is -3r^3s^3\\\\=3+3\\\\=6

Degree of first term should be greater than or equal to 6.So, the following expressions can be used as a first term

1.\rightarrow \frac{5s^7}{6}\\\\2.\rightarrow 3r^4s^5\\\\3.\rightarrow -r^4s^6\\\\4.\rightarrow -6rs^5

Alina [70]3 years ago
3 0

Answer:

3r⁴s⁵

- r⁴s⁶

- 6rs⁵

Step-by-step explanation:

1) The expression given is:

+ 8r²s⁴ – 3r³s³

2) The choices given are:

s⁵

3r⁴s⁵

- r⁴s⁶

- 6rs⁵

1) A polynomial written in standard form has the terms ordered in decreasing order.

For example, 4x⁵ + 8x⁴ + 3x² + 27

2) The given polynomial has degree 6: + 8r²s⁴ – 3r³s³, and it can be ordered respect any of the two variables either r or s.

3)  Adding a new term as first term needs to have degree equal or greater than 6.

So, the candidates from the list are: 3r⁴s⁵, - r⁴s⁶,- 6rs⁵

4) If you use 3r⁴s⁵, the polynomial in standard form would be:

3r⁴s⁵ – 3r³s³ + 8r²s⁴ (as you see the degree of r is decreasing from left to right).

5) If you use - r⁴s⁶, the polynomial in standard form would be:

- r⁴s⁶ – 3r³s³ + 8r²s⁴ (as you see, the degree of r decreases from left to right)

6) If you use - 6rs⁵, the polynomial in standard form would be

- 6 rs⁵– 3r³s³ + 8r²s⁴ (as you see the degree of s is decreasing from left to right).

7) You cannot use s⁵ as first term because its degree is less than 6.

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What is the equation of the line that passes through the point (-5,-2) and has a slope of -6/5
tatyana61 [14]

Answer:

The answer is

<h2>y =  -  \frac{6}{5} x - 8  \\</h2>

Step-by-step explanation:

To find an equation of a line in point slope form when given the slope and a point we use the formula

y -  y_1 = m(x -  x_1) \\

where

m is the slope

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From the question the point is (-5,-2) and the slope is - 6/5

The equation of the line is

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We have the final answer as

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Hope this helps you

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