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bixtya [17]
2 years ago
10

Subtract 3x²-5x+7from5x²-7x+9​

Mathematics
1 answer:
alexgriva [62]2 years ago
5 0

Answer:

2x^2-2x+9

Step-by-step explanation:

5x^2-7x+9-3x^2+5x\\=5x^2-3x^2-7x+5x+9\\= 2x^2-2x+9

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Which equations represent the line that is perpendicular to the line 5x − 2y = −6 and passes through the point (5, −4)? Select t
Pepsi [2]

Answer:

Step-by-step explanation:

Two lines are perpendicular if the first line has a slope of m and the second line has a slope of \frac{1}{-m}.

With this information, we first need to figure out what the slope of the line is that we're given, and then we can determine what the slope of the line we're trying to find is:

5x - 2y = -6

-2y = -5x - 6

y = \frac{5}{2}x + 3

We now know that m = \frac{5}{2} for the first line, which means that the slope of the second line is m = \frac{-2}{5}. With this, we have the following equation for our new line:

y = \frac{-2}{5}x + C

where C is the Y-intercept that we now need to determine with the coordinates given in the problem statement, (5, -4):

y = \frac{-2}{5}x + C

(-4) = \frac{-2}{5}(5) + C

-4 = -2 + C

C = -2

Finally, we can create our line:

y = \frac{-2}{5}x - 2

5y = -2x - 10

2x + 5y = -10

8 0
3 years ago
Read 2 more answers
Someone's quiz grades in the second quarter. (78, 90, 95, 84, 80, 82, 87, 98, 72 ) Find the Median.
jeka57 [31]

Step-by-step explanation:

I believe the answer is 80 cuz it's in the middle

7 0
2 years ago
Read 2 more answers
A 14.4-inch poster is ruled in 9 columns of equal width. How wide is each column?
konstantin123 [22]

14.4 inches / 9 = 1.6 inches

Each column is 1.6 in wide

8 0
3 years ago
PLEASEEEE HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
AleksAgata [21]
Angle NBW is 34 so do the math
4 0
2 years ago
WhWhich of these four sets of side lengths will form a right triangle? Set 1 10 cm, 26 cm, 24 cm Set 2 4 in., 2 in., 6 in. Set 3
Aloiza [94]

Answer:

All four Sets didn't work

Step-by-step explanation:

You should be doing hypothnose aka: a² + b² = c²

If they both equal that means they are a right triangle.

Set 1:

24² + 26² = 110²

576 + 676 = 10²

1252 = 12100

No

Set 2:

2² + 4² = 6²

4 + 16 = 6²

20 = 36

No

Set 3:

13² + 14² = 15²

169 + 196 = 15²

365 = 225

No

Set 4:

10² + 20² = 30²

100 + 400 = 30²

500 = 900

No

5 0
3 years ago
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