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
Alja [10]
2 years ago
13

3x2 + 7x for x =2 Solve

Mathematics
2 answers:
kaheart [24]2 years ago
8 0

Answer:

26

Step-by-step explanation:

3x^2 + 7x

when x = 2,

=> 3(2)^2 + 7(2)

=> 3(4) + 14

=> 12 + 14

=> 26

Savatey [412]2 years ago
7 0

Answer:

26

Step-by-step explanation:

I assume you mean 3x^2+7x for x=2:

3(2)^2+7(2)

3(4)+14

12+14

26

You might be interested in
CAN SOMEONE PLEASE HELP ME????
pochemuha

Answer:

C.\{-4,-2,~0,~2,~4\}

Step-by-step explanation:

Greetings!

I'm~Isabelle~Williams~and~I~will~be~answering~your~question!

I~know~you~asked~for~only~the~domain,~but~just~in~case~I'll~type~down~the~range~\\too:

The~ domain ~is ~the ~set~ of~ all ~the~ values ~of ~x. ~The~ range~ is~ the~ set~ of~ all ~the ~values \\~of ~y.

Domain:\{-4,-2,~0,~2,~4\}

Range:\{-1,~1,~3,~0\}

Thus,~making~the~3^r^d~option~correct!

Hope~this~helps!~Have~an~amazing~day!

-Isabelle~Williams

4 0
3 years ago
–3 ÷ -27<br><br><br> pls helpp need quick answer pls
irina [24]

Answer:

0.1

Step-by-step explanation:

0.1

I just put it into a calculator

3 0
3 years ago
Read 2 more answers
Mrs. Johnson’s class sold cookies for $2.50 each and Mr. Smith’s class sold popcorn for $1.50 each. Together, the classes sold 5
olga_2 [115]

Answer:

c+p = 53

2.5c+1.5p = 105.5

p = 27

c= 26

Mrs. Johnson  earned 65

Mr Smith  earned 40.5

Mrs Johnson earned  24.50 more

Step-by-step explanation:

Let c = cookies sold

p = popcorn sold

The number of items sold is 53

c+p = 53

The total cost of the items sold is 105.50  

The number of cookies sold times 2.50 plus the number of popcorn sold times 1.50 = 105.50

2.5c+1.5p = 105.5

System of equations:

c+p = 53

2.5c+1.5p = 105.5

Multiply the second equation by 10 to clear the decimals

10 *(2.5c+1.5p) = 10*105.5

25c+15p = 1055

Divide by 5

25c/5 +15p/5 = 1055/5

5c+3p =211

Multiply equation 1 by -5

-5(c+p)=-5*53

-5c-5p=-265

Add the equations

5c+3p =211

-5c-5p=-265

---------------------

-2p = -54

Divide by -2

-2p/-2 = -54/-2

p = 27

Now we need to find c

c+p = 53

c+27 = 53

Subtract 27 from each side

c+27-27 = 53-27

c= 26

Mrs. Johnson  earned the number of cookies times 2.5

c* 2.5

26*2.5 =65

Mr Smith  earned the number of popcorn times 1.5

p*1.5

27*1.5

40.5

Mrs Johnson earned 65-40.5 = 24.50 more

5 0
3 years ago
The product of x and 7 are
Anika [276]

Answer:7x

Step-by-step explanation:because you can’t multiply them like 2*2 so you just put them together

7 0
3 years ago
Read 2 more answers
What is the relationship between angles 1 and 2?
Naddika [18.5K]

Answer:

supplementary

Step-by-step explanation:

∠ 1 and ∠ 2 are adjacent angles and supplementary.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Can someone help , please ?
    7·2 answers
  • One question. 100 Points. Need now.
    9·2 answers
  • Solve.<br> 2x + 6 ≥ -8<br><br> A.) x ≥ -8<br><br> B.) x ≤ -8<br><br> C.) x ≥ -5<br><br> D.) x ≤ -5
    7·1 answer
  • A Type I error is committed when a. you don't reject a null hypothesis that is true. b. you don't reject a null hypothesis that
    14·1 answer
  • Half of Robert's piece of wire is equal to 2 thirds of Maria's wire. The total length of their wires is 10 feet. How much longer
    12·2 answers
  • Base area:12.5m^2;height:1.2m
    7·1 answer
  • Which coordinates of jefferson high school's baseball field
    13·1 answer
  • What is the area of this shape?(look at picture)
    5·2 answers
  • How do you solve this <br> 21 = 14 + 7x
    7·1 answer
  • Rashaad leans a 16-foot ladder against a wall so that it forms an angle of 66° with the
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!