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
const2013 [10]
3 years ago
7

Evaluate the expression 2x + x, when x = -3. O A -12 O B-9 OC -3 ooo

Mathematics
1 answer:
svp [43]3 years ago
5 0

Answer:

Option B) -9 is correct

The evaluated given expression when x=-3 is 2x+x=-9

Step-by-step explanation:

Given expression is 2x+x

Now to evalute the given expression when x=-3 as below :

2x+x when x=-3

That is put x=-3 in the given expression we get

2x+x=2(-3)+(-3)

=-6-3

=-9 ( adding the like terms here )

Therefore 2x+x=-9

The evaluated given expression when x=-3 is 2x+x=-9

Option B) -9 is correct

You might be interested in
An electrician needs 6 rolls of electrical wire to wire each room in a house. How many rooms can he wire with 3/4 of a roll of w
Vera_Pavlovna [14]

Answer:

  1/8 room

Step-by-step explanation:

  (3/4 roll)/(6 rolls/room) = (3/4)(1/6) rooms = 1/8 rooms

With 3/4 roll of wire, the electrician can wire 1/8 of a room.

4 0
3 years ago
PLEASE HELP!!!! HELP HELP!
monitta

Answer: D: Half turn about the origin

5 0
3 years ago
Read 2 more answers
The equation of the line that goes through the point (1,5) and is parallel to the line 3x+5y=2 can be written in the form y=Mx+b
Llana [10]

Answer:

y=-\frac{3}{5}x+\frac{28}{5}

Step-by-step explanation:

step 1

Find the slope of the given line

we have

3x+5y=2

isolate the variable y

5y=-3x+2\\\\y=-\frac{3}{5}x+\frac{2}{5}

The slope of the given line is

m=-\frac{3}{5}

step 2

Find the equation of the line that goes through the point (1,5) and is parallel to the given line

Remember that

If two lines are parallel then their slopes are equal

therefore

we have

m=-\frac{3}{5}

point\ (1,5)

substitute in the equation of a line in slope intercept form

y=mx+b

5=-\frac{3}{5}(1)+b

solve for b

b=5+\frac{3}{5}\\\\b=\frac{28}{5}

substitute

y=-\frac{3}{5}x+\frac{28}{5}

3 0
4 years ago
Find the probability of this trial, x=8, n=11, p=0.9 where x is the successes in n trials
Oliga [24]
I just did some work for this, and I believe the correct answer is b. 7%.
8 0
4 years ago
Madison invests money in an account paying a simple interest of 3.2% per year.If she invests $160 and no money will be added or
Tamiku [17]

The amount of interest she will earn in one year will be 5 dollars and 12 cents.

<h3>What is Simple interest?</h3>

The normal interest levied on the amount borrowed from any bank on a yearly basis is called the simple interest.

Given that:-

  • The interest of 3.2% per year
  • Invests $160 and no money will be added or removed from the investment.

The simple interest amount will be:-

SI   =   (  P   x   R   x   T  )  / 100

SI  =    (  160   x   x   3.2   x   1  )  /   100

SI   =    $5.12

Therefore the amount of interest she will earn in one year will be 5 dollars and 12 cents.

To know more about simple interests follow

brainly.com/question/25793394

#SPJ1

5 0
3 years ago
Other questions:
  • From the set {20, 30, 35}, use substitution to determine which value of x makes the inequality true. x - 5 &gt; 25 A. 30 B. 20 C
    15·1 answer
  • On Thursday,the afternoon temperature was 5c lower than the morning temperature.The temperature at night was 3c and it was 8c hi
    12·2 answers
  • You buy equal numbers of containers of tomatoes, cucumbers, and carrots. Both carrots and cucumbers are $3 less per container th
    7·1 answer
  • Write the value 1.22*10^5 in standard decimal form
    7·1 answer
  • A certain investment earns 8 3/4 compound continuously. If 10,000 dollars is invested for 5 years how much will be in the accoun
    11·1 answer
  • There are 800 pupils at Stoke College in Years 7, 8 &amp; 9 in total. There are 27% of them
    13·1 answer
  • -5 + x = -15 help me​
    7·2 answers
  • Describe the general solution (all answers) to a quadratic style equation involving trig functions. (Use only exact values where
    10·1 answer
  • The perimeter of a rectangle is 212. The length is 16 more than 5 times the width.
    6·2 answers
  • Write 16+32 as a product of two factors using the GCT and 5e distributive property
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!