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Damm [24]
2 years ago
10

Write an equation of the line that passes the points (-9,2) and is perpendicular to the line y=3x-12

Mathematics
1 answer:
nikitadnepr [17]2 years ago
8 0
If I’m correct use the slope −13 - 1 3 and a given point (−9,2) ( - 9 , 2 ) to substitute for x1 x 1 and y1 y 1 in the point-slope form y−y1=m(x−x1) y - y 1 = m ( x - x 1 ) , which is derived from the slope equation m=y2−y1x2−x1 m = y 2 - y 1 x 2 - x 1 .
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Help please I need an answer for this fast
castortr0y [4]

Answer:

B 9, -9

Step-by-step explanation:

x^2 - 81 = 0

Add 81 to each side

x^2 = 81

Take the square root of each side

sqrt(x^2) = sqrt(81)

x = ±9

6 0
2 years ago
Gracie has 5555 pet bunnies that love to eat whole carrots. She has 39393939 carrots to feed the bunnies. Gracie will use as man
Kipish [7]
39393939/5555 = 7091.61 so each gets 7091 carrots.
There will be 3434 carrots left over
8 0
3 years ago
What conjecture can you make about the sum of the first 22 positive even numbers?
alekssr [168]

Answer:

A.) The sum of the product of the number of terms and the number of terms plus one.

Step-by-step explanation:

So, we have the sum of the first 22 positive even numbers:

S = 2 + 4+ 6 + ... + 44

We know the sum of such sequence is given by the (sum of the first number (2) and the last number (44)) multiplied by the number of terms (11).

S = (2 + 44) * 11 = 46 * 11 = 506

Answer A tells us it should be the sum of the number of terms (22) by the number of terms plus one (22 + 1 = 23).

S = 22 * 23 = 506

That's confirmed.

Answer B would give 22 * 21 = 462, so it's not right

Answer C would give 22 * 2 = 44, obviously not right

Answer D would give 22 * 22 = 484, close but not right.

7 0
3 years ago
The circumference of a circle is 32π. What is the diameter of this circle?
lawyer [7]
C = 2 (pi) r 

32 (pi) = c

32 (pi)= 2 (pi) r 

r= 16 

2r = d 
 d= 32

hope that helps
4 0
3 years ago
Adrianna sold her DVD that cost $20 with an 8% markup. How much did Adrianna make with the 8% markup?
djverab [1.8K]
Let’s find 1% of the markup first.
20 x 0.01 = $0.20
$0.20 x 8 = $1.60 markup.
$20 + $1.60 = $21.60 total.

Adrianna made $21.60 total, including markup.

Hope that helped! :)
5 0
3 years ago
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