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EleoNora [17]
3 years ago
7

The sum of -4n and 5n is -82

Mathematics
2 answers:
IRINA_888 [86]3 years ago
6 0

Answer:

kxykfrx rs bfcxv56 45 5y yh

Step-by-step explanation:

kycg

Harlamova29_29 [7]3 years ago
5 0
You cannot make that statement without stating the value of n
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4 heyyyyyyy help me please
dolphi86 [110]

Answer:

16 runs

Step-by-step explanation:

16-6=10

3 0
3 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
A bag of marbles contains 16 blue, 8 green, 9 red, 12 yellow and 5 black marbles. What is the probability of drawing a green mar
Novay_Z [31]

Answer:

Step-by-step explanation:

4 0
3 years ago
Find the value of X<br> Need help ASAP
joja [24]

Answer:

lalal idek

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is $59.99 with 15% off
Serjik [45]
First you turn 15% into a decimal by dividing by 100
.15 then multiply by 59.99 and get around 8.99
Then subtract 8.99 from 59.99 and get $51
So $59.99 with 15% off is about $51

Hope this helped! :))
8 0
3 years ago
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