onedirectionfamily onedirectionfamily
  • 22-05-2017
  • Mathematics
contestada

Solve using substitution or elimination.

y=-x²+7
y-2x=4


WILL GIVE BRAINIEST TO WHO EVER HELPS ME SOLVE THIS.

Respuesta :

MathisLif3
MathisLif3 MathisLif3
  • 22-05-2017
essentially, the solutions will be where the two equations intersect.
y=-x^2+7
y=2x+4

2x+4=-x^2+7.
2x=-x^2+3.
x (x+2)-3=0
quadratic formula=> x=1,-3
(1,6) and (-3,-2) are the solutions to the intercepts
Answer Link

Otras preguntas

What came first the chicken or the egg?
U R G E N T ! ____________________ "Does it get very cold here winters?" “Fairly.” "You talk too much." He grinned. "That's what my Mrs. says." What does this
The triangles are similar. What is the value of x ?
Simplify the expression below: 3(7x) – 2(4 – x) Answer Asap
John scored 48, 59, and 62 points. His average score was 60%. What was the last score to make it average? 91 26 78 71
Which choice is equivalent to the quotient shown here when x is greater than or equal to 0?
Immediately after the attacks of September 11, 2001, many people around the world
ANY HELP WITH THIS WOULD BE GREAT
What is the definition of an irrational number? A. a number that can be expressed as a fraction, , where p and q are integers and q is not equal to zero B.
A cable 16 m long runs from the top of a utility pole to a point on the ground 4 m from the base of the pole. How tall is the utility pole, to the nearest tenth