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
uysha [10]
3 years ago
15

What is the solution to it please help.3n + 4n - 2 = 15​

Mathematics
1 answer:
Sedaia [141]3 years ago
7 0

Answer:

7n-2

Step-by-step explanation:

hope I helped

You might be interested in
An angle measures 61º. What is the measure of its supplement? HELP ME PLEASE
Irina-Kira [14]
The supplement of 61 degree is 119 degrees
180-61=119
3 0
3 years ago
Please solve and give me the answer. Please show me how you solved it too.
Evgen [1.6K]

Answer:

x = 24

Step-by-step explanation:

The sum of the measures of the angles of a triangle is 180°.

4x + x + 60 = 180

5x + 60 = 180

5x = 120

x = 24

3 0
3 years ago
If a toy rocket is launched vertically upward from the ground level with an initial velocity of 128 feet per second, then its he
natta225 [31]

Answer:

The maximum height of the rocket is 256 feet

Step-by-step explanation:

The vertex form of the quadratic function f(x) = ax² + bx + c is

f(x) = a(x - h)² + k, where

  • (h, k) is the vertex point
  • h = \frac{-b}{2a} and k = f(h)
  • (h, k) is a minimum point if a > 0 and a maximum point if a < 0

Let us use these rules to solve the question

∵ h(t) = -16t² + 128t

→ Compare it by the form of the quadratic function above

∴ a = -16 and b = 128

∵ a < 0

∴ The vertex (h, k) is a maximum point

∴ The maximum height of the rocket is the value of k

→ Use the rule of h above to find it

∵ h = \frac{-128}{2(-16)} = \frac{-128}{-32}

∴ h = 4

→ Substitute x in the equation by the value of h to find k

∵ k = h(h)

∴ k = -16(4)² + 128(4)

∴ k = -256 + 512

∴ K = 256

∴ The maximum height of the rocket is 256 feet

4 0
3 years ago
What can be represented by the expression -3 + 3?
Tcecarenko [31]

Answer: Zero

Step-by-step explanation:

If you calculate -3 + 3 you get the answer of zero. Not sure if there is more to the problem.

5 0
3 years ago
Read 2 more answers
Ben has 57 toys. 15 of them are new, 9 are his favorite ones; 2 are new and favorite. Ben is going to give away all of his toys
GaryK [48]
Ben has 57, 15 new, 9 favorite, 2 are new and favorite. so take 2 away from both and you get a total of 20 toys that are either new, or favorite so he has 37 remaining
7 0
3 years ago
Read 2 more answers
Other questions:
  • What is 1×3+45÷1×0=​
    15·2 answers
  • will mark BRAINLIEST if you give a correct answer. Please don't forget about the proportion. Thank you!
    6·2 answers
  • Kurt earns $6 a week for doing chores. How many weeks will it take him to earn $50 if he has already earned $10 ? Explain how yo
    9·1 answer
  • What is the decay factor that corresponds to a product that decreases its value first by 20%, and than decreases by 40% of its v
    6·1 answer
  • PB_WITH_FSA_DIAG_6825_OL_FY21
    14·1 answer
  • Simplify: 12(3y + x)
    14·2 answers
  • Can anyone help me with this? I know that angle B is 90°
    14·1 answer
  • Explain how to plot each given point in the coordinate
    14·2 answers
  • Simplify: (x - 8) (x + 8) *
    12·1 answer
  • PLEASE ANSWER THE PHOTO, BELLOW ILL GIVE HIGH RANK TYSM :}}}}}PLEASE MAKE SURE THEY ARE CORRECT :DDD
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!