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
jeyben [28]
3 years ago
14

She completes the problem as seen in the steps below.

Mathematics
2 answers:
prisoha [69]3 years ago
5 0

Answer:

• All her steps are right, and the answer is right as well

Step-by-step explanation:

2(x + 1) + 1 = 5 \\ 2(x + 1) = 5 - 1 \\ 2(x + 1) = 4 \\  \\  \frac{2(x + 1)}{2}  =  \frac{4}{2}  \\  \\ x + 1 = 2 \\ x = 2 - 1 \\ x = 1

Zarrin [17]3 years ago
3 0

D. all the steps are incorrect
Step-by-step explanation:
she needs to distribute the 2 into the parenthesis first due to PEMDAS
2x+2+1= 5
2x+3=5 then isolate the x
-3 -3
2x=2
(2x)/2=2/2
x=1
You might be interested in
8x + y 17<br> 4x + 3y - 31
Vladimir [108]

1) 8x+y\cdot \:17:\quad 8x+17y

2) 4x+3y-31:\quad 4x+3y-31

7 0
3 years ago
Read 2 more answers
What is the standard form equation of the line shown below? Graph of a line going through negative 2, 3 and 1, negative 3
V125BC [204]

Answer:

3. 2x + y = −1

Step-by-step explanation:

To find the equation of the line, we write it first in the slope-intercept form:

y=mx+q

where

m is the slope

q is the y-intercept

From the graph, we see that the line crosses the y-axis at y = -1, so the y-intercept is -1:

q=-1

Now we have to find the slope, by calculating the rate of change of the line through 2 points:

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

Taking the two points at (-2,3) and (1,-3), we find:

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

So the equation of the line is

y=-2x-1

Now we have to re-arrange it in the standard form, so in the form

ax+bx=c

where a, b and c are integer numbers.

To do that, we simply add +2x on both sides of the equation of the line in the slope-intercept form, and we get:

y+2x=-1

So, option 3).

6 0
3 years ago
Write the equation of the line that has a slope of -4 and goes through (3,-3)
Sindrei [870]
The functional equation of the line is f (x)=a*x+b
you have already a: -4 -->f (x)=-4 x+b
Now you can use the point (3;-3)
3 is the x-coordinate and -3 the f (x)-coordinate
--> -3 = -4*(3) + b Now you can solve it
-3 = -12+b (+12)
b = 9
ANSWER: f (x) = -4x + 9
3 0
3 years ago
How would you describe the difference between the graphs of f(x) = x^2 +4 and<br> g(y) - y^2 +4?
s2008m [1.1K]

Answer:

Step-by-step explanation:

The function f(x)=x^2+4 is a positive upwards opening parabola with the vertex at (0, 4), whereas

the function g(y)=y^2+4 is a positive rightwards opening parabola (sideways parabola) with the vertex at (4, 0). This means that answer to this is that g(y) is reflected over the x axis whereas f(x) is reflected over the y axis.

3 0
3 years ago
What is the area to this problem?
Nady [450]

Answer:

56 units²

Step-by-step explanation:

Each triangle has an area that is ...

... A = 1/2bh = 1/2·7·4

There are 4 such triangles, so the total area is ...

... 4A = 4(1/2)·7·4 = 2·7·4 = 56 . . . . units²

_____

An area formula customarily used when the diagonals are pependicular to each other is that the area is half the product of their lengths.

... A = (1/2)d1·d2 = (1/2)·14·8 = 56

6 0
4 years ago
Other questions:
  • How many seconds are in 24 hours?
    14·2 answers
  • A shop sold packets of corn for $1.40 each. During a sale, the shop offered 3 packets of corn for $3.60. Mrs Muthu wanted to buy
    5·1 answer
  • Yvonne is 3 years younger than her sister.the sum of thier ages is 25 years.​
    15·2 answers
  • I need help with factoring.<br><br>25x<img src="https://tex.z-dn.net/?f=x%5E%7B2%7D" id="TexFormula1" title="x^{2}" alt="x^{2}"
    6·2 answers
  • Please Answer ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
    10·1 answer
  • Where is the midpoint of AB if A(6,4) and B(5,-2)?
    6·1 answer
  • 1. Prove that<br><br> 2 tan x / 2- sec^2 x = tan 2x.
    7·1 answer
  • #6) Find the value of x. Be sure to show your work. ​
    9·1 answer
  • What is the middle Integer of 50, 225, 275, 300, &amp; 350
    8·1 answer
  • Select the correct answer.<br> Which function has the same graph as x + y = 11?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!