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Eduardwww [97]
3 years ago
9

Which is the better buy on a camera with a retail price of $730? A) SAVE 20% ON ANY CAMERA B) SAVE $150 ON ANY CAMERA C) SAVE $1

00 PLUS 10% OFF ON ANY CAMERA D) SAVE $50 PLUS $100 REBATE ON ANY CAMERA
Mathematics
1 answer:
Veronika [31]3 years ago
7 0
Camera b because you save $150
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shutvik [7]
You could use -3 + 11
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3 years ago
(X-2)²+(y-1)²=25 how do you do this problem?
Tasya [4]
(x-x_c)^2+(y-y_c)^2=r^2\\
(x_c,y_c) - \text{center}\\\\
(x-2)^2+(y-1)^2=25\\
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2 years ago
A triangle has vertices at (1,10), (-5,2), and (7,2). What is its orthocenter. Show your work.
kondor19780726 [428]

Answer:

Question: What is the orthocenter of a triangle with the vertices (-1,2) (5,2) and (2,1)?

The coordinates of point A are (-1,2), point B are (5,2), and point C are (2,1).

The orthocent is the intersection of the three altitudes. An altitude goes from a vertex and is perpendicular to the line containing the opposite side.

In the coordinate plane the equations of the altitudes can be found and then a system of equations can be solved.

Altitude 1. From point C perpendicular to the line containing side AB.

Slope of line AB is 0 (horizontal line), a vertical line is perpendicular to a horizontal line. Thus, the equation of altitude 1 is  x=2 .

Altitude 2. From point B perpendicular to the line containing side AC.

Slope of line AC is  −13 , the slope of a line perpendicular to line AC is 3. The equation of altitude 2 is  y=3x−13  

Altitude 3. From point A perpendicular to the line containing side BC.

Slope of line BC is  13 , the slope of a line perpendicular to line BC is  −3 . The equation of altitude 3 is  y=−3x−1  

The orthocenter is the point where all three altitudes intersect.

x=2  

y=3x−13  

y=−3x−1  

Use substitution to solve the first two equations  y=3(2)−13=−7  

The orthocenter is the point  (2,−7)  

we did not need the third equation, but we can use it as a check, plug the coordinates into the third equation:

−7=−3(2)−1  

−7=−6−1  

−7=−7  it works.

3 0
3 years ago
What is 5
Sonja [21]

Answer:

A

Step-by-step explanation:

hope this helps:))

6 0
3 years ago
You drive a distance of 242 miles and use 11 gallons of gas.what is the average miles per gallon of your car?
BartSMP [9]
242÷11=22
The average mpg is 22
4 0
3 years ago
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