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
Vanyuwa [196]
3 years ago
8

What is the value of 7x^2 + 3x + 4 when x=2?

Mathematics
2 answers:
Nonamiya [84]3 years ago
8 0

Answer:

38

Step-by-step explanation:

substitute the value of the variable into an equation, then simplify

DerKrebs [107]3 years ago
3 0

Answer:

38

Step-by-step explanation:

To find the value of 7x^2 + 3x + 4 when x=2. We have to plug in x. So plugging x in, we have

7(2)^2 +3(2) +4

and this becomes

7(4) + 6 +4

or

8(4)+6

which is 38

You might be interested in
12. Find the slope and y-intercept of the line. y= 1/5x-8
eduard

Hello and Good Morning/Afternoon:

<u>Let's take this problem step-by-step</u>:

<u>What does the problem want us to find:</u>

  • slope
  • y-intercept

<u>Let's gather the information</u>:

  ⇒ the information given: y = 1/5 x - 8

        ⇒ the line is in <u>slope-intercept form</u>

            ⇒ means:

                     ⇒ coefficient in front of 'x' is the slope

                     ⇒ constant is the y-intercept

  • slope is 1/5
  • y-intecept is -8

<u>Answer:</u>

  • <u>Slope is 1/5</u>
  • <u>y-intercept is -8</u>

<u></u>

Hope that helps!

#LearnwithBrainly

7 0
2 years ago
PLEASE HELP ME WITH THIS !!
Firdavs [7]

Answer:

i have no idea

Step-by-step explanation:

man

3 0
3 years ago
How many people do you need to switch a lightbulb?
kondaur [170]

Answer:

Just one.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What is 30% of 70?? please help
melamori03 [73]

Answer:

<h2>21</h2>

Step-by-step explanation:

<em>Method 1:</em>

p\%=\dfrac{p}{100}\\\\30\%=\dfrac{30}{100}=\dfrac{3}{10}=0.3\\\\30\%\ of\ 70\ is\\\\0.3\cdot70=21

<em>Method 2:</em>

\begin{array}{cccc}100\%&-&70&\text{divide both sides by 10}\\\\10\%&-&7&\text{multiply both sides by 3}\\\\30\%&-&21\end{array}

4 0
4 years ago
I WILL GIVE OUT BRAINLIST!!!!!!
Paraphin [41]

Answer:

The rock's height is always increasing from 0 to 3 seconds. (0,3)

Step-by-step explanation:

The graph rises when x = 0 up until it reaches the vertex, aka where x=3 is.

4 0
3 years ago
Other questions:
  • Every Wednesday, Carla runs 2.5 miles. How many feet did she run? I have no idea how to do this.
    8·2 answers
  • What are the solutions of 3x2+14x+16=0?
    14·2 answers
  • 0.5(8x+4) + (2x+ 1)<br><br>k(2x+1)​
    12·2 answers
  • What is the value of p?
    15·1 answer
  • Find the product. Write your answer in exponential form.<br><br> 9^-9 * 9^-7
    8·1 answer
  • 2(x-5)=3(x+7) Show the process, please.
    11·2 answers
  • PLz solve quick i need help asap. : )
    10·1 answer
  • 3 3/4 divided by 3/4
    10·2 answers
  • Identify the angle rlationship in the table
    5·2 answers
  • Solve for t.<br> 4 = 2 + 2/5 t
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!