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
lys-0071 [83]
2 years ago
9

Y - X=-5 y = 2x2-3x-5 PLEASE HELP AND SHOW WORK (substitution)

Mathematics
1 answer:
nikdorinn [45]2 years ago
8 0

Answer:

Step-by-step explanation:

y - x = -5

y =  x-5

y = 2x² - 3x - 5

x-5 = 2x² - 3x - 5

2x² - 4x = 0

x² - 2x  = 0

x(x - 2) = 0

x = 2, 0

(x,y) = (2,-3), (0,-5)

You might be interested in
What is the average of the first 50 positive odd integers
mote1985 [20]
I think that the answer is 25
7 0
2 years ago
A forest ranger wants to install a 1,500 CFM (cubic feet per minute) fan. A ranger station consists of a rectangular prism and a
levacccp [35]
Sample response: <span>Yes, the fan will provide enough airflow. The volume of the ranger station is 720 cubic feet. The ranger station requires a 720 CFM fan. 1,500 CFM is greater than 720 CFM, so it will be enough airflow.</span>
6 0
3 years ago
Read 2 more answers
C = k - 273.15 (a) Write two other related equations . (b) If the temperature is 23 in degrees Celsius , what is the temperature
Alona [7]

Answer:

(a) k = C + 273.15, F = 1.8(k - 273.15) + 32

(b) k = 296.15

(c) 25 celcius is greater than 300 kelvis.

Step-by-step explanation:

(a) one equation would be to solve for k instead of c, and another related equation could be from kelvin to Farenheit.

C = k - 273.15

C + 273.15 = k

k = C + 273.15

F = 1.8(k - 273.15) + 32

(b) for this one you have to substitute in the previous equation and solve for k.

23 = k - 273.15

k = 23 + 273.15

k = 296.15

(c) you have to convert either kelvins to celcius or celcius to kelvins.

C = k - 273.15

C = 300 - 273.15

C = 26.85

So 25 celcius is greater than 300 kelvis.

5 0
2 years ago
Find the length of ST
Andru [333]

Answer:

ST = 12

Step-by-step explanation:

By AA Similarity, triangles ASR and EST are similar.

The ratio of the lengths of the sides of triangle ASR to those of EST is 6/8 or 3/4.

\dfrac{SR}{ST} = \dfrac{3}{4}

Also,

SR + ST = 21

By a rule of proportions, you get

\dfrac{SR + ST}{ST} = \dfrac{3 + 4}{4}

\dfrac{21}{ST} = \dfrac{7}{4}

7ST = 4 \times 21

7ST = 84

ST = 12

3 0
2 years ago
For the function y = 3x^2 - 12x + 4, what is the mirror point for the y-intercept? Give your answer in (x,y) point form.
saveliy_v [14]

Answer:

Your in Pacyber aren't you? Mr. Breux class? Anyway the answer is (0,-4)

Step-by-step explanation:

The y intercept is (0,-4)

6 0
2 years ago
Other questions:
  • What is 463,462 rounded to the nearest ten thousand
    5·2 answers
  • A car traveling at an average rate of 55 km per hour made a trip in 6 hours. if it had traveled at an average rate of 50 km per
    15·1 answer
  • Help Needed, Much Thanks Generous amount of points<br><br>4a+b<br><br>x<br>^Find X
    11·1 answer
  • Write an expression that is equivalent to three over four (5z+ 16). (4 points)
    15·1 answer
  • In isosceles triangle RST below,<br> What is the value of y
    7·1 answer
  • The average distance of the Moon from Earth is 386,242,560 m. Represent 386,242,560 in scientific notation.
    8·1 answer
  • The measures of the angles of a triangle are shown in the figure below. Solve for x.
    14·2 answers
  • Answer below PLEASE HELP ME PLSSS HELP WILL MARK BRAINLIST
    8·2 answers
  • The table compares actual lengths in a room to lengths in a blueprint of the room.
    13·1 answer
  • janet obtained 32% for her statistics test, which was out of a total of 300 marks. how much should she score in the computer sci
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!