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
BARSIC [14]
3 years ago
7

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

Mathematics
1 answer:
Amanda [17]3 years ago
8 0
The answer is 69 because when you substitute 3 for x, and do the math, you get 69.
You might be interested in
30 POINTS,NEED HELP ASAP !!!
zaharov [31]

Answer: OPTION A.

Step-by-step explanation:

You can observe that in the figure CDEF the vertices are:

C(-2,-1),\ D(-2,0),\ E(2,2)\ and\ F(2,1)

And in the figure C'D'E'F'  the vertices are:

C'(-8,-4),\ D'(-8,0),\ E'(8,8)\ and\ F'(8,4)

For this case, you can divide any coordinate of any vertex of the figure C'D'E'F' by any coordinate of any vertex of the figure CDEF:

For C'(-8,-4) and C(-2,-1):

\frac{-8}{-2}=4\\\\\frac{-4}{-1}=4

Let's choose another vertex. For E'(8,8) and E(2,2):

\frac{8}{2}=4\\\\\frac{8}{2}=4

You can observe that the coordinates of C' are obtained by multiplying each coordinate of C by 4 and the the coordinates of E' are also obtained by multiplying each coordinate of E by 4.

Therefore, the rule that yields the dilation of the figure CDEF centered at the origin is:

(x, y)→(4x, 4y)

7 0
3 years ago
Read 2 more answers
What is the quotient when the sum of — 1/2 and -- 3/4 is divided by the product of
docker41 [41]
What I got was 9/10 or you could make it into a percentage 90% hope this helps
4 0
3 years ago
Can somebody please help me
tekilochka [14]

To find the volume of a cylinder, the equation used is V = 3.14r^2h

r = 4, and h = 3,  so we input both numbers to get V = 3.14*4^2*3

V = 3.14*4^2*3 = 3.14*16*3 = 3.14*48=150.72

V = 150.7 ft^3

7 0
3 years ago
2 = f/8 Solve the equation.
MaRussiya [10]

Answer:

f = 16

Step-by-step explanation:

Isolate the variable, f. Note the equal sign, what you do to one side, you do to the other. Multiply 8 to both sides of the equations:

2 = (f/8)

2(8) = (f/8)(8)

f = 2 * 8 = 16

f = 16 is your answer.

~

4 0
3 years ago
Read 2 more answers
HELP FAST
belka [17]

Answer: 1)

y < 0

x >= 0

2)

3x - 4y < 1

3x - 4y < 8

3) 4x + y > 4

8x + 2y < -5

4)

3x - y > 1

6x - 2y < 20

Step-by-step explanation:

7 0
2 years ago
Other questions:
  • Joe heard from a reliable source that only 22% of people actually sleep 8 hours or more per night. You do a survey and find 58 o
    15·1 answer
  • 2852.1 rounded to the nearest tenth of a mile
    13·2 answers
  • P+3/m=-1 solve for p
    13·1 answer
  • Image point N'(12, -6) was dilated from the pre-image point N(4, -2). What was the scale factor used?
    10·1 answer
  • What is 11,499 to the nearest thousand
    11·2 answers
  • HELP PLEASE ASAP!!!!!
    7·1 answer
  • What is the value of n in the equation ? n = 0 n = 2 n = 4 n = 6
    12·2 answers
  • Which triangle is congruent to ABC?
    11·2 answers
  • Graph the line whose y- intercept is -2 and whose x- intercept is -1​
    8·1 answer
  • Find each missing measure for 1, 2, 3, and 4. Giving brainliest!
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!