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vesna_86 [32]
4 years ago
6

(15–7xy^2)–(y^3–y^2x–15)

Mathematics
2 answers:
Vitek1552 [10]4 years ago
6 0
My answer is: -6xy2 - y3<span> + 30
Hope this helps bye</span>
blsea [12.9K]4 years ago
5 0
15 - 7xy^2 - (y^3 - y^2x - 15)

Distribute negative sign
15 - 7xy^2 + -1(y^3 - y2x - 15)
15 + -7xy^2 + -1y^3 + -1(-xy^2) + (-1)(-15)
15 + -7xy^2 + -y^3 + x^2 + 15

Combine like terms
15 + - 7xy^2 + -y^3 +xy^2 + 15
( -7xy^2 + xy^2) + (-y^3) + (15 + 15)
-6xy^2 + -y^3+ 30

= -6xy^2 + -y^3+ 30
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What is the y-/intercept of 5x+3y=15
liberstina [14]

Answer:

5

Step-by-step explanation:

y intercept: when x = 0

5(0) + 3y = 15

3y = 15, y = 5

The y intercept is 5

4 0
3 years ago
The function that passes through thepoints (24, 28) and (8,8)Is?
icang [17]

The slope of the line that passes through the points (x1, y1) and (x2,y2) is computed as follows:

m=\frac{y_2-y_1}{x_2-x_1}

In this case, the points are (24, 28) and (8,8), then its slope is:

m=\frac{8-28}{8-24}=\frac{-20}{-16}=\frac{5}{4}

The slope-intercept form of a line is:

y = mx + b

where m is the slope and b is the y-intercept

Substituting into the general equation with m = 5/4 and the point (24, 28) we get:

\begin{gathered} 28=\frac{5}{4}\cdot24+b \\ 28=30+b \\ 28-30=b \\ -2=b \end{gathered}

Finally, the equation is

y = 5/4x - 2

3 0
1 year ago
Please see the question​
Bingel [31]

Step-by-step explanation:

I hope you are 100% clear.

3 0
3 years ago
If y varies directly with x, write an equation for the direct variation. Then find each value,
lukranit [14]
Just a guess Bc I’ve no idea what you’re talking abt, but 3. Would set 30/6 and 15/y cross multiply, solve for y and get y =3
3 0
3 years ago
Read 2 more answers
70
BaLLatris [955]

Answer:

160 is the answer please tell me if im wrong

5 0
3 years ago
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