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
nalin [4]
3 years ago
10

What is the value of 7x2 + 2x when x = 3

Mathematics
2 answers:
telo118 [61]3 years ago
6 0
7x2+2x
7(3)2+2(3)
7(9)+6
63+6
69 so the answer is 69
Sophie [7]3 years ago
3 0

Answer:

The answer is 20

Step-by-step explanation:

2x=6 and then 7x2=14 then 14+6=20

You might be interested in
Translate the following phrase into an algebraic expression. Use the variable b to represent the unknown quantity.
otez555 [7]

Answer:

s/5=b

Step-by-step explanation:

4 0
3 years ago
Find the hardest math problem in the world and solve it.
nexus9112 [7]

Answer:1+1=

Step-by-step explanation:

2 :p

5 0
3 years ago
You are planning to plant a triangular garden in your backyard, as shown. You plan to put up a fence around the garden to keep o
Drupady [299]

Answer:

24 m

Step-by-step explanation:

The lenght of fencing needed is the sum of all sides the triangular garden represented on the coordinate grid.

The lenght of the triangular garden = 16 - 10 = 6 m

Lenght of the height = 8 - 0 = 8 m

Lenght of the hypotenuse can be calculated using coordinates of the two vertices of the ∆ that forms the hypotenuse lenght and also using the distance formula.

Coordinates of the two vertices = (10, 0) and (16, 8).

distance = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}

Let,

(10, 0) = (x_1, y_1)

(16, 8) = (x_2, y_2)

d = \sqrt{(16 - 10)^2 + (8 - 0)^2}

d = \sqrt{(6)^2 + (8)^2}

d = \sqrt{36 + 64} = \sqrt{100}

d = 10

Length of fencing = 6 + 8 + 10 = 24 m

6 0
3 years ago
Y=-1\2+1 with a slope intercept that contains (5,6)
Semenov [28]

Answer:

y - 1/2x + 7/2

Step-by-step explanation:

y = 1/2x + 1

6 = 1/2 (5) + b

6 = 5/2 + b

7/2 = b

8 0
3 years ago
The blue figure is a translation of the black image. Write a rule to describe the translation.
4vir4ik [10]

it has gone up 4 lines and left -2 making it go for a (4,-2)

5 0
3 years ago
Other questions:
  • What are the slope and the y-intercept of the linear function that is represented by the table?
    7·2 answers
  • Your grandmother gave you 1.62 with which to buy a present this cover two out of three of the cost how much did the Present cost
    5·1 answer
  • 7x + 2 &gt; 30 <br><br> Help please
    14·2 answers
  • Given the replacement set {0, 1, 2, 3, 4}, solve 6x – 3 = 3.
    8·1 answer
  • Help me i tried all sort of answers but i cant find the right one
    7·2 answers
  • please help !!! A sphere and a cylinder have the same radius and height. The volume of the cylinder is 48cm^3 .
    11·2 answers
  • The coefficients in the expansion of (x + y)4
    13·1 answer
  • 2 divided by 1 full and 1<br> over 3
    5·2 answers
  • 7) Given:<br> Name the part of the circle that segment CD represents.
    11·1 answer
  • SolvingTwo-Step Problems<br>7x-8=6​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!