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
Ede4ka [16]
3 years ago
14

Use the distributive property to remove the parentheses.

Mathematics
1 answer:
erik [133]3 years ago
5 0

Divide each term in  

4

x

=

7

by  

4

.

4

x

4

=

7

4

Cancel the common factor of  

4

.

Tap for more steps...

x

=

7

4

The result can be shown in multiple forms.

Exact Form:

x

=

7

4

Decimal Form:

x

=

1.75

Mixed Number Form:

x

=

1

3

4

You might be interested in
What is [70+(-30)]+[2+(-9)]+[0.3+(-0.1)]
vovangra [49]

\huge\mathfrak{=\;0}

8 0
3 years ago
Read 2 more answers
Which of the following statements is NOT true?
Ludmilka [50]

Answer

it think it is 2 and 4 if i am wrong i will edit my work

Step-by-step explanation:

8 0
3 years ago
What is the answer to 9% of 65?
garri49 [273]

Answer:

5.85

Step-by-step explanation:

9% of 65 (sorry forgot i was answering this)

3 0
3 years ago
Read 2 more answers
What is the value of x? Thanks for the help
-BARSIC- [3]
Hello! I can help you! First things first, because they are both the same angles on opposite sides, let's set this up in the form of an equation and solve for "x". It would be set up like this:

2x + 20 = 3x - 30

You see up top that it says 2(x + 10). What you would do is multiply what's in the parenthesis by 2, in order to get 2x + 20. Then put the equal sign and write 3x - 30. Subtract 3x from both sides to get -1x + 20 = -30. Subtract 20 from both sides to get -1x = -50. Divide each side by -1 to isolate the "x". In this case, because you are dividing a negative number by a negative number, your quotient will be positive. -50/-1 is 50. Let's plug in the value as "x" and see if it works. 50 * 2 is 100. 100 + 20 is 120. 50 * 3 is 150. 150 - 30 is 120. 120 = 120. There. x = 50.
8 0
3 years ago
In a large population, 3% of the people are heroin users. A new drug test correctly identifies users 93% of the time and correct
kari74 [83]

Answer:

(a) The probability tree is shown below.

(b) The probability that a person who does not use heroin in this population tests positive is 0.10.

(c) The probability that a randomly chosen person from this population is a heroin user and tests positive is 0.0279.

(d) The probability that a randomly chosen person from this population tests positive is 0.1249.

(e) The probability that a person is heroin user given that he/she was tested positive is 0.2234.

Step-by-step explanation:

Denote the events as follows:

<em>X</em> = a person is a heroin user

<em>Y</em> = the test is correct.

Given:

P (X) = 0.03

P (Y|X) = 0.93

P (Y|X') = 0.99

(a)

The probability tree is shown below.

(b)

Compute the probability that a person who does not use heroin in this population tests positive as follows:

The event is denoted as (Y' | X').

Consider the tree diagram.

The value of P (Y' | X') is 0.10.

Thus, the probability that a person who does not use heroin in this population tests positive is 0.10.

(c)

Compute the probability that a randomly chosen person from this population is a heroin user and tests positive as follows:

P(X\cap Y)=P(Y|X)P(X)=0.93\times0.03=0.0279

Thus, the probability that a randomly chosen person from this population is a heroin user and tests positive is 0.0279.

(d)

Compute the probability that a randomly chosen person from this population tests positive as follows:

P (Positive) = P (Y|X)P(X) + P (Y'|X')P(X')

                  =(0.93\times0.03)+(0.10\times0.97)\\=0.1249

Thus, the probability that a randomly chosen person from this population tests positive is 0.1249.

(e)

Compute the probability that a person is heroin user given that he/she was tested positive as follows:

P(X|positive)=\frac{P(Y|X)P(X)}{P(positive)} =\frac{0.93\times0.03}{0.1249}= 0.2234

Thus, the probability that a person is heroin user given that he/she was tested positive is 0.2234.

6 0
3 years ago
Other questions:
  • Your first bungee jump is 50 1/6 ft higher than your second jump. Your first jump reaches -200 2/5 ft. What is the height of you
    10·2 answers
  • Rita ran 5 miles in 48 minutes what was her time per mile
    12·2 answers
  • Solve the equation V - E + F = 2 for E
    15·1 answer
  • Compare the numbers using &lt;, &gt;, or =. 0.78 ___ 0.708 &lt; &gt; =
    12·1 answer
  • 7^5 • 7^6 as a single exponent
    15·1 answer
  • Oliver is building a box kite. The frame of the kite has the dimensions shown. He covered the sides of the kite (but not the top
    6·1 answer
  • HELP ASAP PLEASE HELPPP MEEE
    10·2 answers
  • What is 8.5439 rounded to the nearest tenth?
    8·2 answers
  • 8 individually powered machines have motors that use 203 watts each. What is the total wattage used when all machines are runnin
    7·1 answer
  • Ed keeps his sneaker collection carefully arranged on the floor of his closet. 8 pairs of
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!