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Nuetrik [128]
3 years ago
8

Write an equation perpendicular to x-3y=3 passes through (5,-9)

Mathematics
1 answer:
kherson [118]3 years ago
8 0
3y=x-3
y=1/3x-1
Perpendicular slope: -3
y=-3x+b
Plug in the coordinates in the equation:
-9=-3(5)+b
-9=-15+b
4=b
Equation: y=-3x+4
Also, when finding the perpendicular slope you take the reciprocal of the original slope and make it negative if it is positive and make it positive if it’s negative.
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Is (6,-10) a solution of y=3x-8
Vitek1552 [10]
You can easily test this if you know that (6, -10) corresponds to (X, Y). Knowing this, you can: 

X = 6
Y = -10

you put this into your equation:

-10 = 3*6 - 8

calculate it:

-10 = 18 - 8
-10 = 10
This is not true of course, -10 is not equal to 10. Therefore, (6, -10) is not a solution of y = 3x-8 :)
6 0
3 years ago
Which one should I choose?
Nastasia [14]

Given:

A figure of a quadrilateral.

To find:

The measures of angle 1 and angle 2.

Solution:

The given figure has two pairs of congruent adjacent sides. So, the quadrilateral in the figure is a kite.

We know that the diagonals of a kit are perpendicular to each other at the point of intersection.

m\angle 1=90^\circ

According to the angle sum property, the sum of all interior angles of a triangle is 180 degrees.

90^\circ+65^\circ+m\angle 2=180^\circ

155^\circ+m\angle 2=180^\circ

m\angle 2=180^\circ-155^\circ

m\angle 2=25^\circ

Therefore, the correct option is C.

7 0
3 years ago
Translate (5. – 5) down 3 units.
Scrat [10]

Answer:

(5, 8)

Step-by-step explanation:

(5. – 5) down 3 units => (5, -8)

reflect x-axis => (5 , 8)

3 0
3 years ago
the radius of a circle is 10 centimeters. what is the area of a sector bounded by a 90° arc? give the exact answer in simplest f
Alex787 [66]
I hope this isn't too late! You can find the answer to this by first finding the area of the circle, A=πr². So since the radius is 10, we input that into the equation to get π100. Now, there is 360° in a circle and a sector of 90° is 1/4 of it. So to answer the question all you have to do is find 1/4 of the area of the circle. 

The answer is π25.

To solve the other questions on your assignment just think about how much the sector is of the full 360° of the circle, for example 180° is 1/2 of the circle or 270° is 3/4 of the circle, and multiply the fraction by the area of the circle.

Hope this helped, good luck! :)
6 0
3 years ago
Read 2 more answers
WILL GIVE BRAINLIEST..... NEED HELP FAST
Setler79 [48]

Answer:2516 pounds

Step-by-step explanation:

find the difference in gallons and the difference in the weights

46 - 14 = 32 gallons

2399 - 2191 = 208 pounds

 so 32 gallons of gas weighs 208 pounds

find weight per pound: 208 pounds / 32 gallons = 6.5 pounds per gallon

 round to 6.5 pounds per gallon

64 gallons - 46 gallons = 18 gallons

 18 gallons x 6.5 pounds per gallon = 117 pounds

2399 + 117 = 2516  weight of plane with 64 gallons

6 0
3 years ago
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