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vazorg [7]
3 years ago
15

Simplify r2 –2r3 + 3r2

Mathematics
1 answer:
kiruha [24]3 years ago
7 0
Final answer: -4r × 12

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The cube root is the same as______
Ksju [112]

Answer:

the third root

Step-by-step explanation:

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2 years ago
Find the slope of a line perpendicular to 3x + 5y = 15.
Zielflug [23.3K]

Answer:

B)5/3

Step-by-step explanation:

"3x + 5y = 15."

Rewrite in slope-intercept form.

The slope-intercept form is  

y=mx+b

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

y=mx+b

Subtract  3x  from both sides of the equation.

5y=15−3x

Divide each term by  "5"  and simplify.

5y/5=15/5−3x/5

"5" and "5" cancel each other out

Divide  15  by  5

y=3-3x/5

Reorder  3  and  −3x/5

y=-3x/5+3

Rewrite in slope-intercept form.

y=−3/5x+3

Slope:-3/5

The equation of a perpendicular line to  y=−3x/5+3  must have a slope that is the negative reciprocal of the original slope.

<em>m</em>perpendicular=−1/(−3/5)

Simplify the result.

mperpendicular=5/3

hope this helps!

8 0
3 years ago
A single die is rolled twice. the set of 36 equally likely outcomes is {(1, 1), (1, 2), (1, 3), (1, 4), (1, 5), (1, 6), (2, 1),
Maksim231197 [3]
<span>We need to find the rolls whose sum is greater than 10. By looking at the outcomes, we see that (5,6), (6,5), and (6,6) all have a sum greater than 10. Therefore, there are 3 chances to get a sum greater than 10. Since there are 36 chances overall, the probability of rolling greater than 10 are 3/36 = 1/12.</span>
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Ten measurements of impact energy on specimens of A238 steel at 60 ºC are as follows:
ElenaW [278]

Answer:

Step-by-step explanation:

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The lines graphed below are perpendicular. The slope of the red line is -2.
ASHA 777 [7]

Answer:

1/2

Step-by-step explanation:

opposite reciprocal

4 0
3 years ago
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