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
Stella [2.4K]
3 years ago
9

Solve for x2x+1=11provide explanation please

Mathematics
2 answers:
KatRina [158]3 years ago
8 0

Answer:

x = 5.

Step-by-step explanation:

2x + 1 = 11

Subtract 1 from both sides:

2x = 11 - 1 =10

Divide both sides by 2:-

x = 10/2

x = 5.

hram777 [196]3 years ago
7 0

Answer:

x=5

Step-by-step explanation:

2x+1=11

   -1   -1

2x=10

---------

2    2

x=5

You might be interested in
Lance and Alex have 70 pencils. Lance has 4 times as many pencils as Alex. Alex's pencils are shared equally among 2 children. H
gogolik [260]


let l = lance, and a = alex.

so: l + a = 70

and l = 4a

Putting the value for l in the first equation:

4a +a = 70

5a = 70

a = 14.

So Alex has 14 pencils. And Lance has (70-14) 56 pencils.

And if each child gets half of Alex' pencils, then each child will have 7 pencils.

6 0
3 years ago
What is the Integer for loss of 30 yards in football?
Wittaler [7]

Answer:

-30 i guess

Step-by-step explanation:

5 0
3 years ago
Solve y'' + 10y' + 25y = 0, y(0) = -2, y'(0) = 11 y(t) = Preview
svetlana [45]

Answer:  The required solution is

y=(-2+t)e^{-5t}.

Step-by-step explanation:   We are given to solve the following differential equation :

y^{\prime\prime}+10y^\prime+25y=0,~~~~~~~y(0)=-2,~~y^\prime(0)=11~~~~~~~~~~~~~~~~~~~~~~~~(i)

Let us consider that

y=e^{mt} be an auxiliary solution of equation (i).

Then, we have

y^prime=me^{mt},~~~~~y^{\prime\prime}=m^2e^{mt}.

Substituting these values in equation (i), we get

m^2e^{mt}+10me^{mt}+25e^{mt}=0\\\\\Rightarrow (m^2+10y+25)e^{mt}=0\\\\\Rightarrow m^2+10m+25=0~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~[\textup{since }e^{mt}\neq0]\\\\\Rightarrow m^2+2\times m\times5+5^2=0\\\\\Rightarrow (m+5)^2=0\\\\\Rightarrow m=-5,-5.

So, the general solution of the given equation is

y(t)=(A+Bt)e^{-5t}.

Differentiating with respect to t, we get

y^\prime(t)=-5e^{-5t}(A+Bt)+Be^{-5t}.

According to the given conditions, we have

y(0)=-2\\\\\Rightarrow A=-2

and

y^\prime(0)=11\\\\\Rightarrow -5(A+B\times0)+B=11\\\\\Rightarrow -5A+B=11\\\\\Rightarrow (-5)\times(-2)+B=11\\\\\Rightarrow 10+B=11\\\\\Rightarrow B=11-10\\\\\Rightarrow B=1.

Thus, the required solution is

y(t)=(-2+1\times t)e^{-5t}\\\\\Rightarrow y(t)=(-2+t)e^{-5t}.

6 0
3 years ago
Let f(x)= - 3x - 1 and g(x)=x2 + 2.<br> Find (fog)(-6).
Leona [35]

Answer:(Fog)(-6)=29

Step-by-step explanation:

(fog)=-3(2x+2)-1

=-6x-6-1

=-6x-7

(fog)(-6)= -6(-6)-7

=36-7

=29

6 0
3 years ago
In parallelogram KLMN, NL=15. Identify NP. HELP PLEASE!!
adelina 88 [10]

Answer:

B

Step-by-step explanation:

Fact: The diagonals of a parallelogram bisect each other. If NL= 15 the NP = 1/2 NL

1/2 NL = 15/2 = 7.5.

NP = 7.5

Answer: NP = 7.5   B

7 0
3 years ago
Other questions:
  • Please answer number 3.
    13·1 answer
  • In a school 30% of year 10 students are boys. Of these 25% chose to take PE GCSE. Given there are 240 students in year 10 how ma
    15·1 answer
  • What is the next in the sequence 10 12 22 34 56 90
    7·1 answer
  • Please help find the time?!
    8·1 answer
  • I really need help if somebody could explain this into detail and show me how would really appreciate it please
    5·2 answers
  • PLZ HURRY<br>Solve for z.<br><br>z<br><br>3<br><br>–3≤<br><br>–<br><br>2
    11·2 answers
  • Pls help I will give brainleist (4)
    11·2 answers
  • Here you go ☺️ I NEED HELP SO HELP PLS
    10·2 answers
  • An analogue clock is gaining three minutes every hour.If you set it to the correct time at 6 p.m. in Saturday,when will it show
    7·1 answer
  • How many sets of three consecutive integers are there in which the sum of the three integers equals their product?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!