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
prohojiy [21]
2 years ago
15

Please help me

Mathematics
1 answer:
Kruka [31]2 years ago
6 0

y = x^2 -4x

x = -1

y = (-1)^2 - 4×-1=1+4 = 5

x= 0

y = (0)^2 - 4×0 = 0

x = 1

y = 1^2 -4×1 = 1-4 = -3

x = 2

y = 2^2 -4×2 = 4-8 = -4

x=3

y = 3^2 - 4×3 = 9-12 = -3

x = 4

y = 4^2 - 4×4 = 16 - 16 = 0

now 2nd equation

y = 2x^2 + x

x = -2

y = 2 (-2)^2 + (-2)= 8-2 = 6

x = -1

y = 2 (-1)^2+(-1)= 2-1 = 1

x = 0

y = 2(0)^2 +0 = 0

x = 1

y = 2 (1)^2 + 1 = 3

x = 2

y = 2(2)^2+2= 8 + 2 = 10

You might be interested in
find the number of running and passing plays using substitution method 110 plays 3 yards per run 7 yards per pass total yards 37
Zinaida [17]

Let x be the number of running plays

Y  be the number of passing plays

Since the total plays is 110

 X + y = 110

And total yard is 378

3x + 7y = 378

Using the first equation

X = 110 – y and substitute to the 2nd equation

3(110 – y) + 7y = 378

And solve for y

Y = 12

Substitute to eqution 1

X = 110 – 12 = 98

7 0
2 years ago
Solving systems of equations with substitution:<br> y= 2x-4 <br>y= -x+5<br><br>help please!
Furkat [3]
<span>y= 2x-4 
y= -x+5
so

</span><span>2x-4 = -x+5
2x +x = 5 +4
3x = 9
x =3

y = 2x-4
y =2(3) - 4
y = 6-4
y = 2

answer: (3,2)</span>
4 0
2 years ago
Which expression gives the best estimate of 45 percent of 76?
jonny [76]

Answer:

<h2>1/2 of 80</h2>

Step-by-step explanation:

45% is close to 1/2 (50%) and 76 is close to 80, so 1/2 of 80 is the best answer.

1/2 of 80 is 40

45% of 76 is 76 x 0.45 is 34.2

6 0
2 years ago
Help rn please!! I’ll mark as brainliest for the first person to answer
ser-zykov [4K]
C is the answer i thinkkk
3 0
2 years ago
This is the change in kinetic energy of a system in which a 16 kg object moving at 25 m/s slows to a velocity of 20 m/s.
Natalka [10]

The change in kinetic energy of the  system is 200 J

Kinetic energy is the energy that an object possesses as a result of its motion.

It is given by:

Kinetic energy = (1/2)m[v - u]²

Where m is the mass of the object, v is the final velocity and u is the initial velocity.

Given that m = 16 kg, v = 20 m/s, u = 25 m/s, hence:

Kinetic energy = (1/2) * 16 * (20 - 25)² = 200 J

The change in kinetic energy of the  system is 200 J

Find out more at: brainly.com/question/12669551

5 0
2 years ago
Other questions:
  • Solve by substitution. <br> 3x-y=5<br> -2x+y=0
    7·2 answers
  • 1.)Find the height of a rectangular prism if the surface area is 148 cm2, the width is 4 cm and the length is 5 cm.
    14·1 answer
  • the ratio of blue circles to total circles is 4 to 5. there are more than 10 circles. describe what this group would look like.
    8·1 answer
  • Whisper the numbers in standard form and unit form 42
    6·1 answer
  • A triangle has vertices X(2, 1), Y(5, 4), and Z(5, 1). What is the area of the triangle?
    13·1 answer
  • What is the volume of the right cone shown below? 10 O A. 7577 units3 B. 100n units3 C. 1507 units3 375 units3​
    10·1 answer
  • Giving brainliest!!!!!!!!!!
    6·2 answers
  • Simplify the given expression below:<br> (1 + 3) + (2 - 5i)
    7·2 answers
  • 1. On a set of parallel lines cut by a transversal, m22 = (7 - 5) and mah = (1 + 25)
    5·1 answer
  • Which choice is equivalent to the expression below? square root of -64
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!