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
Pachacha [2.7K]
2 years ago
6

The product of a number and -3, increased by 8 is 20. I need help. >:

Mathematics
2 answers:
pychu [463]2 years ago
8 0

Answer:

-4

Step-by-step explanation:

-3(x)+8=20

-3x=12

x=-4

Black_prince [1.1K]2 years ago
4 0
Answer.) -4

Hope this helped!
You might be interested in
Please help asap.<br><br> please don’t take advantage of the points.
Verdich [7]

The answer is c = .6x + 5  

In order to find the equation, note that the price per pound is contingent upon the weight in x. Therefore, we can multiply the two together.

We also need to add the constant, which is 5.

5 0
3 years ago
Read 2 more answers
The sum of three consecutive numbers is 36. What are the numbers?
Yuliya22 [10]

Answer:

11, 12, and 13

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Consider the following quadratic function Part 3 of 6: Find the x-intercepts. Express it in ordered pairs.Part 4 of 6: Find the
maksim [4K]

Answer:

The line of symmetry is x = -3

Explanation:

Given a quadratic function, we know that the graph is a parabola. The general form of a parabola is:

y=ax^2+bx+c

The line of symmetry coincides with the x-axis of the vertex. To find the x-coordinate of the vertex, we can use the formula:

x_v=-\frac{b}{2a}

In this problem, we have:

y=-x^2-6x-13

Then:

a = -1

b = -6

We write now:

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

Part 3:

For this part, we need to find the x-intercepts. This is, when y = 0:

-x^2-6x-13=0

To solve this, we can use the quadratic formula:

x_{1,2}=\frac{-(-6)\pm\sqrt{(-6)^2-4\cdot(-1)\cdot(-13)}}{2(-1)}

And solve:

x_{1,2}=\frac{6\pm\sqrt{36-52}}{-2}x_{1,2}=\frac{-6\pm\sqrt{-16}}{2}

Since there is no solution to the square root of a negative number, the function does not have any x-intercept. The correct option is ZERO x-intercepts.

Part 4:

To find the y intercept, we need to find the value of y when x = 0:

y=-0^2-6\cdot0-13=-13

The y-intercept is at (0, -13)

Part 5:

Now we need to find two points in the parabola. Let-s evaluate the function when x = 1 and x = -1:

x=1\Rightarrow y=-1^2-6\cdot1-13=-1-6-13=-20x=-1\Rightarrow y=-(-1)^2-6\cdot(-1)-13=-1+6-13=-8

The two points are:

(1, -20)

(-1, -8)

Part 6:

Now, we can use 3 points to find the graph of the parabola.

We can locate (1, -20) and (-1, -8)

The third could be the vertex. We need to find the y-coordinate of the vertex. We know that the x-coordinate of the vertex is x = -3

Then, y-coordinate of the vertex is:

y=-(-3)^2-6(-3)-13=-9+18-13=-4

The third point we can use is (-3, -4)

Now we can locate them in the cartesian plane:

And that's enough to get the full graph:

8 0
1 year ago
Graph the line that passes through the points (2, -3)(2,−3) and (4, -3)(4,−3) and determine the equation of the line.
liraira [26]

Answer:

Step-by-step explanation:

7 0
3 years ago
Which expression is equivalent to 1/2 (2n+6)?​
Fynjy0 [20]

Multiply the bracket by 1/2

1/2(2n +6)

cross out 2 and 2n and divide by 2.

cross out 6 and 2 and divide by 2

n+3

Answer is n+3

7 0
3 years ago
Read 2 more answers
Other questions:
  • How do u write 25,678 in number name
    12·1 answer
  • In a sale normal prices are reduced by 10%
    7·2 answers
  • There are 64 pretzels in a 16 ounce bag of chocolate covered pretzels.
    9·1 answer
  • What is 7,5444+789=?
    14·2 answers
  • PLEASE HELP!! I WILL MARK BRAINLIEST! IF YOU HAVE ANSWERED THIS QUESTION ALREADY, DON'T ANSWER IT AGAIN PLEASE!
    13·2 answers
  • What is the left overs of 185 devided by 6
    7·1 answer
  • One car rental company charges $30 per day plus $0.25 per mile driven. A second company charges $40 per day plus $0.10 per mile
    10·1 answer
  • Find the final price of a $149.99 smart watch with 8.5 sales tax
    7·1 answer
  • You and your family go out for dinner and spend $125.00 for the meal. The family paid a total of $150 which included the tip.. W
    14·2 answers
  • Which expression can be used to find the retail price of an item that was bought at wholesale for $112 and sold at a 40% markup?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!