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
Trava [24]
3 years ago
14

Please help fast........

Mathematics
1 answer:
Neko [114]3 years ago
8 0

Answer:

b

Step-by-step explanation:

You might be interested in
Please help!!!!!!!!!!
Delicious77 [7]

f(x)=2x^2-4x+1

Substitute the values of x to the equation of the function f:

x=-1\to f(-1)=2(-1)^2-4(-1)+1=2(1)+4+1=7\\\\x=2\to f(2)=2(2^2)-4(2)+1=2(4)-8+1=1

Therefore we have two points (-1, 7) and (2, 1).

We can calculate the slope of line l.

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

Substitute:

m=\dfrac{1-7}{2-(-1)}=\dfrac{-6}{3}=-2

<h3>Answer: A) -2.</h3>
5 0
3 years ago
How do you solve each system of equations?
stiv31 [10]

Answer:

x=1,y=3,z=1

Step-by-step explanation:

4x-4y+4z=-4

4x=-4+4y-4z

x=-1+y-z

Substitute  x=-1+y-z into second equation:

4\left(-1+y-z\right)+y-2z=5

-4+4y-4z+y-2z=5

5y-6z-4=5

y=\frac{6z+9}{5}

Substitute x=-1+y-z and y=\frac{6z+9}{5} into the third equation:

\frac{-41z-54}{5}+3=-16

-41z-54=-95

z=1

Substitute z=1 into y=\frac{6z+9}{5}:

y=3

Plug in y and z values into x=-1+y-z:

x=1

4 0
3 years ago
Find c if m A = 70.6°, b = 10.4 in
nata0808 [166]

Answer:

its 7.8

Step-by-step explanation:

4 0
3 years ago
When doctors prescribe medicine, they must consider how the drug’s effectiveness declines as time passes. If each hour a drug is
Pie

Answer:

B)

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What are the slope and the y-intercept of the linear function that is represented by the equation y=-10x+1?
Alenkasestr [34]
Linear functions can be written in the form y=mx+b, where:
y is a y coordinate on the line
m is the slope of the line
x is the x coordinate on the line that corresponds with the y coordinate in the equation
b is the y-intercept of the line

So for the equation y=-10x+1:
m=-10 and b=1 so the slope of the line is -10, and the y-intercept is 1. Your answer is B.
5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the equation of the line in standard form?
    11·2 answers
  • HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    5·1 answer
  • The volume of a cube is 710cm3 work out the length of its side rounded to 1 decimal place​
    10·1 answer
  • What is the area of this?<br><br>I need step by step
    13·1 answer
  • jayson used 0.5 cups of kernals to make 16 cups of popcorn how many cupes of popcore would he make if he used 0.75 cups of kerna
    7·2 answers
  • How many quarters are thee in 4 1/2​
    6·1 answer
  • 5. What is the length of side a? Please help
    10·1 answer
  • Which equation is represented by the line
    5·2 answers
  • 50 POINTS IF YOU HELP ME!!!!!! A study of college business majors included 150 sophomores and 200 juniors. The study showed that
    8·2 answers
  • (01.06 LC)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!