The ordered pair that is the solution to the system of
equations cane be solve by adding the two term
(x+ y=−13)+ (x−y=21) = (2x = 8)
X = 4
Substitute x to the first equation
4 +y = -13
Y = -17
Answer:
- demand: p = -9/8x +200
- supply: p = 9/4x -43
Step-by-step explanation:
The 2-point form of the equation for a line can be used as a starting place for writing these equations. For dependent variable p and independent variable x, it will be ...
p = (p2 -p1)/(x2 -x1)(x -x1) +p1
a) Two points on the demand curve are (x, p) = (56, 137) and (72, 119). Then the equation is ...
p = (119 -137)/(72 -56)(x -56) +137
p = -18/16(x -56) +137
p = -9/8x +200
__
b) Two points on the supply curve are (x, p) = (80, 137) and (72, 119). Then the equation is ...
p = (119 -137)/(72 -80)(x -80) +137
p = -18/-8(x -80) +137
p = 9/4x -43
Answer:
Step-by-step explanation:
<em>Look at the picture.</em>
We have the triangles 45° - 45° - 90°. The sides are in ratio 1 : 1 : √2
(<em>look at the second picture</em>).
Therefore we have the equations:
and
Solve:
<em>multiply both sides by √2</em>
<em>divide both sides by 2</em>
<em>multiply both sides by √2</em>
<em>divide both sides by 2</em>
The side length of square is
The area of a square:
Answer:
Q ' (3,4)
Step-by-step explanation:
When we reflect across the x axis, the y coordinate becomes -y
Q (3,-4) becomes Q' (3,- -4)
Q ' (3,4)
Answer:
D.) 45 degrees
Step-by-step explanation:
In a right triangle when the legs are congruent the angles are congruent as well
In a right triangle the sum of all angle measures is 180 degrees
with this in mind there is only one choice that holds up to this while having congruent side angles
<em>plx mark me brainliest. :)</em>