1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ArbitrLikvidat [17]
2 years ago
15

This system has one solution.

Mathematics
2 answers:
erica [24]2 years ago
7 0

Answer:

The y-coordinate of the solution is, 10

Step-by-step explanation:

Given the system of equation:

y = -2x+4            ....[1]

y=x^2+4x+13         ....[2]

Equate the equation [1] and [2] we have;

-2x+4 = x^2+4x+13

Add 2x to both sides of an equation:

4 = x^2+6x+13

Subtract 4 from both sides we have;

0= x^2+6x+9

or

x^2+6x+9=0

Using perfect square:

(x+a)^2 = x^2+2ax+a^2

⇒We can write the equation as:

x^2+2 \cdot 3x+3^2=0

then;

(x+3)^2 = 0

⇒x+3 = 0

Subtract 3 from both sides we have;

x = -3

Substitute value of x in [1] we have;

y = -2(-3)+4

⇒y =6+4=10

Solution for the given system of equation = (-3, 10)

Therefore, the  y-coordinate of the solution is, 10

matrenka [14]2 years ago
4 0
Hello there!
I have just taken the test on this answer and I got 10...
I hope this helps!!
You might be interested in
PLZ ANSWER ASAP
svetlana [45]
Factor the following:
4 p (4 p - 1) - 3 (4 p - 1)^2

Factor 4 p - 1 from 4 p (4 p - 1) - 3 (4 p - 1)^2:
(4 p - 1) (4 p - 3 (4 p - 1))

-3 (4 p - 1) = 3 - 12 p:
(4 p - 1) (4 p + 3 - 12 p)

Grouping like terms, 4 p - 12 p + 3 = 3 + (4 p - 12 p):
(4 p - 1) (3 + (4 p - 12 p))
4 p - 12 p = -8 p:

Answer:  (4 p - 1) (-8 p + 3)

___________________________________________________
Factor the following:
m (m + n) - 3 m (m + n)^2

Factor m + n out of m (m + n) - 3 m (m + n)^2, resulting in (m + n) (m - 3 m (m + n)^(2 - 1)):
(m + n) (m - 3 m (m + n)^(2 - 1))

2 - 1 = 1:
(m + n) (m - 3 m (m + n))

Factor m out of m - 3 m (m + n), resulting in m (1 - 3 (m + n)):
m (1 - 3 (m + n)) (m + n)

-3 (m + n) = -3 m - 3 n:
Answer:  m (m + n) (-3 m - 3 n + 1)

___________________________________________________________Answer : -(-6 + p^2) (-1 - 6 q + p^2 q)

___________________________________________________

Factor the following:
6 u^2 (2 u - 5)^2 - 12 u^2 (2 u - 5) (u + 5)

Factor u^2 out of 6 u^2 (2 u - 5)^2 - 12 u^2 (2 u - 5) (u + 5), resulting in u^2 (6 (2 u - 5)^2 - 12 (2 u - 5) (u + 5)):
u^2 (6 (2 u - 5)^2 - 12 (2 u - 5) (u + 5))

(2 u - 5) (2 u - 5) = (2 u) (2 u) + (2 u) (-5) + (-5) (2 u) + (-5) (-5) = 4 u^2 - 10 u - 10 u + 25 = 4 u^2 - 20 u + 25:
u^2 (6 4 u^2 - 20 u + 25 - 12 (2 u - 5) (u + 5))

6 (4 u^2 - 20 u + 25) = 24 u^2 - 120 u + 150:
u^2 (24 u^2 - 120 u + 150 - 12 (2 u - 5) (u + 5))

(u + 5) (2 u - 5) = (u) (2 u) + (u) (-5) + (5) (2 u) + (5) (-5) = 2 u^2 - 5 u + 10 u - 25 = 2 u^2 + 5 u - 25:u^2 (150 - 120 u + 24 u^2 - 122 u^2 + 5 u - 25)

-12 (2 u^2 + 5 u - 25) = -24 u^2 - 60 u + 300:
u^2 (-24 u^2 - 60 u + 300 + 24 u^2 - 120 u + 150)

Grouping like terms, 24 u^2 - 24 u^2 - 60 u - 120 u + 150 + 300 = (-120 u - 60 u) + (24 u^2 - 24 u^2) + (150 + 300):
u^2 ((-120 u - 60 u) + (24 u^2 - 24 u^2) + (150 + 300))

-120 u - 60 u = -180 u:
u^2 (-180 u + (24 u^2 - 24 u^2) + (150 + 300))
150 + 300 = 450:
u^2 (-180 u + (24 u^2 - 24 u^2) + 450)

24 u^2 - 24 u^2 = 0:
u^2 (450 - 180 u)

Factor 90 out of 450 - 180 u:
Answer:  u^2×90 (5 - 2 u)

_________________________________________________________

5 0
3 years ago
Can soneone help me with these basic vector math problems?!
sergij07 [2.7K]

Answer:

Yes you are right on both.

Step-by-step explanation:

Plz make brainliest

6 0
2 years ago
HURRY ANSWER THIS!
Ann [662]

Answer:

none lul

Step-by-step explanation:

my noggin

7 0
2 years ago
Read 2 more answers
christina lost 1/10 of her marbles when she was on the playground. She lost 8/10 of her marbles while walking home. How many mar
Kisachek [45]

Answer:

9/10

Step-by-step explanation:

She lost 1/10 and 8/10 marbles. When you add them up you get 9/10. There for, Christina lost 9/10 marbles altogether.

Hope this helps :)

3 0
3 years ago
A day care facility is open six days a week. The numbers of children who
Igoryamba

Answer:

23

Step-by-step explanation:

23 is the only number that is told the  MOST not least let me know if you need any more help ---shadow5555

5 0
3 years ago
Other questions:
  • If i am twice the age of my sister but she is 10 years young then my brother who is 36 how old am I
    6·2 answers
  • a blue whale weighs about 300,000 pounds, and a great white shark weighs about 4,000 pounds. how many times the weight of a grea
    9·2 answers
  • Which type of equation would best model the data shown?
    9·1 answer
  • You work as a health inspector and must visit each of the 15 restaurants in town once each week. In how many different orders ca
    9·1 answer
  • What is the value of x? x + 12 < 180
    10·1 answer
  • Refer to the following information on full-term births in the United States over a given period of time.Type of Birth Number of
    12·1 answer
  • What is the sum? <br> Thank you!
    15·2 answers
  • Maria has a bag with 6 red marbles, 6 blue marbles, and 4 green marbles looking Maria picks one . She does not replace it and sh
    9·1 answer
  • Trains Two trains, Train A and Train B, weigh a total of 515 tons Train Ais heavier than Train
    14·1 answer
  • What is the equation
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!