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
lana [24]
4 years ago
8

If 2x + 5 = 8x, then 12x = ?

Mathematics
2 answers:
satela [25.4K]4 years ago
6 0
X= 10

~because~

2x+5=8x, subtract 2x from both sides:

5=6x, divide 6 on both sides:

x=5/6, then rewrite the equation:

12(5/6)

x=10
elena55 [62]4 years ago
5 0
2x+5=8
-2x       -2x
5= 6x
divide by 6 on both sides
.8333=x  (it's a repeating decimal)   

12(.8333)= 9.9996 (depending on how the teacher like it rounded)
You might be interested in
I don't know the answer
Kaylis [27]

Answer:

C

Step-by-step explanation:

A function is when the x value has ITS OWN Y VALUE, so the x value can't have more than one y value.

Can't be A, because 6 and 13 both have 10

Can't be B, because there are two x - values (6 and 6)

It can only be C, because each x-value has a different y-value

3 0
3 years ago
Read 2 more answers
Can someone please tell me what r^2 - 9 = is?
cestrela7 [59]

Answer:

The answer is (r + 3)(r - 3)

Step-by-step explanation:

There need to be two number that add together to get 0

and two number that multiply together to get -9

3 + -3 = 0

3 · -3 = -9

= (r + 3)(r - 3)

6 0
4 years ago
Find the absolute extrema of f(x) = e^{x^2+2x}f ( x ) = e x 2 + 2 x on the interval [-2,2][ − 2 , 2 ] first and then use the com
fredd [130]

f(x)=e^{x^2+2x}\implies f'(x)=2(x+1)e^{x^2+2x}

f has critical points where the derivative is 0:

2(x+1)e^{x^2+2x}=0\implies x+1=0\implies x=-1

The second derivative is

f''(x)=2e^{x^2+2x}+4(x+1)^2e^{x^2+2x}=2(2x^2+4x+3)e^{x^2+2x}

and f''(-1)=\frac2e>0, which indicates a local minimum at x=-1 with a value of f(-1)=\frac1e.

At the endpoints of [-2, 2], we have f(-2)=1 and f(2)=e^8, so that f has an absolute minimum of \frac1e and an absolute maximum of e^8 on [-2, 2].

So we have

\dfrac1e\le f(x)\le e^8

\implies\displaystyle\int_{-2}^2\frac{\mathrm dx}e\le\int_{-2}^2f(x)\,\mathrm dx\le\int_{-2}^2e^8\,\mathrm dx

\implies\boxed{\displaystyle\frac4e\le\int_{-2}^2f(x)\,\mathrm dx\le4e^8}

5 0
3 years ago
1) A searchlight is mounted on the front of a search and rescue helicopter. The pilot is
julia-pushkina [17]
561 cm because if you do the math mc = square you get that answr your welcome
3 0
3 years ago
The graph of f(x)=x2 was transformed to create the graph of g(x)=(x+5)2.
alexandr1967 [171]

Answer:

a horizontal shift left

Step-by-step explanation:

my teacher always tells me whatever you think it is in the parenthisis do the opposite. Sorry not a good explanation

5 0
3 years ago
Other questions:
  • Can someone please help me with my math homework I really need help plzzz answer as soon as possible
    10·1 answer
  • 1/4(7+3g)=-g/8<br> Please help, algebra homework!?!!!
    5·1 answer
  • Simplify 43-4(2+5)what is this in simplest form
    12·2 answers
  • Can you help me figure this out what area is the shaded part
    14·1 answer
  • Find the difference between 719 and 735
    14·1 answer
  • С<br> (2x + 19)<br> (3х + 8)<br> А
    12·1 answer
  • I need help finding the inverse of this problem
    5·1 answer
  • A bag of 28 tulip bulbs contains 12 red bulbs, 8 yellow, and 8 purple. The probability that both bulbs are red?
    11·1 answer
  • PLEASE HELP ME I HAVE 20 MINUTES TO FINISH!!!!
    9·1 answer
  • There are 10 hotel in town. How many different ways can 7 persons be sent.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!