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
yulyashka [42]
3 years ago
12

SOMEONE HELP ME PLEASE ILL GIVE BRAINLY

Mathematics
1 answer:
e-lub [12.9K]3 years ago
8 0

Answer:

Step-by-step explanation:

In order to determine the information you're being asked for, you need to complete the square on that quadratic. The first step is to move the constant over to the other side of the equals sign:

x^2-2x=3

Here would be the step where, if the leading coefficient isn't a 1, you'd factor it out. But ours is a 1, so we're good there. Now take half the linear term (the term with the single x on it), square it, and add it to both sides. Our linear term is a -2.  Half of -2 is -1, and -1 squared is +1. We add +1 to both sides giving us this:

x^2-2x+1=3+1

Now we'll clean it up a bit. The right side becomes a 4, and the left side is written as its perfect square binomial, which is the whole reason we did this. That binomial is

(x-1)^2=4 (set equal to the 4 here). Now we'll move the 4 back over and set the whole thing back equal to y:

y=(x-1)^2-4

From this it's apparent what the vertex is: (1, -4),

the axis of symmetry is x = 1, and

the y-intercept is found by setting the x's equal to 0 in the original  equation and solving for y. So the y-intercept is (0, -3).

Your choice for the correct answer is the very last one there.

You might be interested in
1. tan (x+x)<br> 2. = tan(x) + tan (x)/1 - tan(x)tan(x)<br> 3. = 2tan(x)/1-tan^2 (x)
RUDIKE [14]

Step-by-step explanation:

  1. gfifdhgxg k gjkcxftio to the I received the windows in summer season in Tyrrell I love this house r cp
8 0
3 years ago
Use Cramer's Rule to solve the following system: –2x – 6y = –26 5x + 2y = 13
andriy [413]
\bf \begin{cases}&#10;-2x-6y&=-26\\&#10;\quad 5x+2y&=13&#10;\end{cases}\stackrel{\textit{determinant of the coefficients}}{D=&#10;\begin{bmatrix}&#10;-2&-6\\5&2&#10;\end{bmatrix}}\implies (-4)-(-30)&#10;\\\\\\&#10;D=-4+30\implies \boxed{D=26}\\\\&#10;-------------------------------\\\\

\bf x=\cfrac{D_x}{D}\implies x=\cfrac{&#10;\begin{bmatrix}&#10;\boxed{-26}&-6\\\\ \boxed{13}&2&#10;\end{bmatrix}}{D}\implies x=\cfrac{(-52)-(-78)}{26}&#10;\\\\\\&#10;x=\cfrac{-52+78}{26}\implies x=\cfrac{26}{26}\implies \boxed{x=1}\\\\&#10;-------------------------------\\\\&#10;y=\cfrac{D_y}{D}\implies y=\cfrac{&#10;\begin{bmatrix}&#10;-2&\boxed{-26}\\\\ 5&\boxed{13}&#10;\end{bmatrix}}{D}\implies y=\cfrac{(-26)-(-130)}{26}&#10;\\\\\\&#10;y=\cfrac{-26+130}{26}\implies y=\cfrac{104}{26}\implies \boxed{y=4}
4 0
3 years ago
I need help finding the area
BabaBlast [244]

Answer:

72

Step-by-step explanation:

A=a+b/2*hA=12

A=12*12/2

Hoped this helped! :)

Plz mark Brainliest!

Have a nice day!

72

3 0
3 years ago
From her home, Jada would have to walk 3 miles north to get to her friend Brianna's house and 4 miles east to get to her friend
Yanka [14]

Answer: 12 miles

Step-by-step explanation: Stright from her house to luke is 5 miles back ti brianna is 4 miles and back home is 3 miles all together 5+4+3=12

6 0
3 years ago
1. Find m
Bess [88]
It's forming a circle so we know that together it's going to add up to 360. #1 is 66 because angle A trough E is straight and we have 90 on angle ACF and it's vertical to angle FCG. #2 is 125 because angle ACB is 24 because it's vertical to angle GCE. #3 is 114 because 90 and 24 is 114. #4 is 156 because 66 and 90 equal 156.
1. FCG = 66
2. BCD = 125
3. FCB = 114
4. ACG = 156
4 0
3 years ago
Other questions:
  • PLEASE HELP ME!!!!!!!!!! I WOULD REALLY APPRECIATE IT
    15·2 answers
  • Solve for X . Be sure to reduce your answer . check your answer
    7·1 answer
  • A pyramid has a base off 100 m^2 and a height of 60 m. What is the volume of the pyramid?
    11·1 answer
  • Factorise 8x+12<br> ffffffffffdfffdfdfd
    8·2 answers
  • The APR of Vinny's savings account is 3.5%, but interest is compounded only once a year. What is the APY of Vinny's savings acco
    15·2 answers
  • Which functions are symmetric with respect to the y-axis? Check all that apply.
    10·2 answers
  • A highway had a landslide, where 3,000 cubic yards of material fell on the road, requiring 200 dump truck loads to clear. On ano
    7·1 answer
  • Solve for x: 3x+2y=5y+4
    6·1 answer
  • How was your day?<br><br> i hope it was good &lt;3
    13·1 answer
  • Calculate the value of each of the following​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!