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
IRISSAK [1]
2 years ago
9

Evaluate the following expression if x = -7. 3x2 - 4x + 5

Mathematics
1 answer:
Tanzania [10]2 years ago
6 0

3 ×2 - 4(-7) + 5

3 × 2 +28 + 5

6 + 28 +5

=39

You might be interested in
Help! Everyone keeps trolling me!
zhenek [66]

9514 1404 393

Answer:

  1. 0 < x < 4
  2. (- ∞ < x < 0) ∪ (4 < x < ∞)
  3. x ∈ {0, 4}

Step-by-step explanation:

1. The solution is the set of x-values for which the graph is above the x-axis, where y = 0. Those x-values are in the interval (0, 4).

__

2. The solution is the set of x-values for which the graph is below the x-axis. Those x-values are in either of the two intervals (-∞, 0) or (4, ∞).

__

3. The x-intercepts of the graph are x=0 or x=4.

5 0
2 years ago
What would you guess the mean of the
bekas [8.4K]

Answer:

3

Step-by-step explanation:

add up all data values to get the sum count the number of values in your data set divide the sum by the count

6 0
3 years ago
Help me, please. This is past due. It's not that hard.
jasenka [17]

The slope of the line is \frac{2}{1} (or just 2) as it rises by 2 units and runs to the left by 1 unit.

7 0
2 years ago
A new cruise ship line has just launched 3 new​ ships: the Pacific​ Paradise, the Caribbean​ Paradise, and the Mediterranean Par
topjm [15]
Let the number of deluxe that Pacific has be x
the number that Caribbean has will be (x+18)
the number that Mediterranean has will be (3x-25)
total b=number of deluxe in the 3 ships will be:
x+(x+18)+(3x-25)
5x-7=928
5x=928+7
x=935/5
x=187
Hence the Pacific has 187, Caribbean has 187+18=205, Mediterranean has (3*187-25)
=534 
6 0
3 years ago
you want to put 520 quarters in coin wrappers. you need one wrapper for every $10 in quarters. write an equation you can use to
Lisa [10]
40c=520
This is the proper equation because there are 40 quarters in $10. Thus, if we could only fit $10 worth of quarters in each wrapper, we can only fit 40quarters in each wrapper. C represents the amount of wrappers we will need.

Hope this helps!
6 0
3 years ago
Other questions:
  • What’s the inverse function for f(x) 6x-5
    5·1 answer
  • Find the Missing length
    8·1 answer
  • In math class, a student has an average grade of 85% for five tests so far. What grade must that student earn on the next test t
    5·1 answer
  • ++<img src="https://tex.z-dn.net/?f=1%2Fu%2B1%2Fv%3D1%2Ff" id="TexFormula1" title="1/u+1/v=1/f" alt="1/u+1/v=1/f" align="absmidd
    8·1 answer
  • What is the solution of the equation over the complex numbers
    11·1 answer
  • A firm is accustomed to training operators who do certain tasks on a production line. Those operators who attend the training co
    9·1 answer
  • Please help me thank you.
    11·1 answer
  • Which of the following statements are true?
    11·1 answer
  • 1. In this Vacation time, go through your neigh blurs and take a survey (not less than 20 peoples) about their favourite festiva
    5·1 answer
  • Draw the line of reflection that reflects quadrilateral ABCD onto quadrilateral A'B'C'D
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!