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
seraphim [82]
2 years ago
13

What is the solution to -2|x − 1| = -4? A. x = 3 B. x = -1 or x = 3 C. x = 1 or x = 3 D. No solutions exist.

Mathematics
1 answer:
PSYCHO15rus [73]2 years ago
4 0

Answer:

B

Step-by-step explanation:

-2|x - 1| = -4

|x - 1| = 2

since we are dealing with a function that brings 2 values to the same result, the reverse function (needed to find the values of x that create the result y) has 2 branches :

(x - 1) = 2

and

(x - 1) = -2

x - 1 = 2

x = 3

x - 1 = -2

x = -1

therefore, B is the right answer.

You might be interested in
A price decreased from 60$ to 45$ find the percent of decrease
BlackZzzverrR [31]
Percent change = [(45 - 60) / 60] x 100 = -25 % (decrease)
8 0
3 years ago
Read 2 more answers
Complete the square and put this function in vertex form: f(x)=x^2+20x+97
Fofino [41]

Answer:

Step-by-step explanation:

f(x)=(x²+20x+100) -3  because : 97 = 100 -  3

f(x) = (x+10)² -3 ....vertex form

3 0
3 years ago
Write an equation for the line parallel to the given line that contains C.<br> Help
tangare [24]
There is no photo shown
6 0
3 years ago
The angle Johnny holds his pen on paper creates a linear pair. The measure of one angle is 13x + 7. The
tresset_1 [31]
<h3>The value of x is 4.10</h3>

<em><u>Solution:</u></em>

Given that,

The angle Johnny holds his pen on paper creates a linear pair

Angles in a linear pair are supplementary angles

Two angles are supplementary, when they add up to 180 degrees

The measure of one angle is 13x + 7

The  measure of the second angle is one less than twice the first angle

Therefore,

Measure of second angle = twice the first angle - 1

Measure of second angle = 2(13x + 7) - 1

Measure of second angle = 26x + 14 - 1

Measure of second angle = 26x + 13

Therefore,

Measure of first angle + measure of second angle = 180

13x + 7 + 26x + 13 = 180

39x + 20 = 180

39x = 180 - 20

39x = 160

x = 4.1

Thus value of x is 4.10

3 0
3 years ago
When the event is 1/9, the complement of the event is
mamaluj [8]

Answer:

\frac{8}{9}

Step-by-step explanation:

Complement of the event

= 1 -  \frac{1}{9}  \\  =  \frac{9 - 1}{9}  \\  =  \frac{8}{9}  \\

8 0
3 years ago
Other questions:
  • How many different books did the children read
    5·1 answer
  • PLEASE I NEED HELP ANSWER (05.03)Bella works at a shoe store. In addition to a fixed salary, she earns a commission for each pai
    8·1 answer
  • Which of the following shows the solution of 7x – 5 &gt; 16?
    15·1 answer
  • State the domain of the function f(x) = x
    10·2 answers
  • By your cell phone contract, you pay a monthly fee plus some money for each minute you use the phone during the month. In one mo
    7·1 answer
  • *ANSWER FAST*
    13·1 answer
  • I’m thinking of a number. When I multiply by 4 and add –2, I get –26. What’s my number?
    12·1 answer
  • Brady had a balance of $23 before a $25 fee was charged to his account. what is his new balance?​
    12·1 answer
  • A ball is thrown into the air from the edge of a 48-foot-high cliff so that it eventually lands on
    5·1 answer
  • Help me pls<br> jkcxkjhvbxljbejkrj
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!