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mafiozo [28]
3 years ago
6

Math help! plsss on these questions

Mathematics
1 answer:
likoan [24]3 years ago
5 0
1.)-2v-7=-23
    -2v=-16
      v=8
2.)x/3-10=-12
    x/3-10=-12
    x/3=-2
      x=-6
3.) x/4+10=14
     x/4=4
       x=16
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Which equation can you solve to find the potential solutions to the equation log2x log2(x – 6) = 4? x2 – 6x – 4 = 0 x2 – 6x – 8
sergeinik [125]

To solve the question we must know about Logarithm.

<h2>Logarithm</h2>

A log function is a way to find how much a number must be raised in order to get the desired number.

a^c =b

can be written as

\rm{log_ab=c

where a is the base to which the power is to be raised,

b is the desired number that we want when power is to be raised,

c is the power that must be raised to a to get b.

For example, let's assume we need to raise the power for 10 to make it 1000 in this case log will help us to know that the power must be raised by 3.

\rm{log_{10}1000=3

The value of input can not be negative, the value of x is 8.

<h2>Given to us</h2>
  • \rm{ log_2x+log_2(x-6)= 4

<h2>Solution</h2>

\rm{ log_2x+log_2(x-6)= 4

  • Using log_ab + log_ac = log_a(bc),

        \rm{ log_2x(x-6)= 4

  • Taking antilog,

        x(x-6)= 2^4

  • Doing factorization

        x^2 -6x -16=0\\&#10;x^2 -8x +2x-16=0\\&#10;x(x-8)+2(x-8)=0\\&#10;(x+2)(x-8) = 0

Equating factors against 0,

1.    (x+2)=0\\&#10;x=-2

2.     (x-8)=0\\&#10;x=8

As the value of input can not be negative, the value of x is 8.

Hence, the value of x is 8.

Learn more about Logarithm:

brainly.com/question/3072484

8 0
2 years ago
Solve algebraically the simulaneous equations y=2x^2-3x-10<br>2x-y=-2​
enot [183]

Answer:

X=-3/2, X=4

Step-by-step explanation:

Really easy

Image attached

3 0
3 years ago
A container has peppermint gum and spearmint gum. There are 18 pieces of peppermint gum in the container and the ratio of pepper
pishuonlain [190]

Answer:

there are 27 pieces of spearmint gum.... hope this helps :)

Step-by-step explanation:

7 0
3 years ago
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The data set shows the number of hours per week that each student in a class spends studying at home. What is the shape of the d
AVprozaik [17]

Answer:

The answer is symmetrical

Step-by-step explanation:

            x

        x  x  x

    x  x  x  x  x

x   x  x  x  x  x  x

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1   2  3  4  5  6 7

4 0
3 years ago
Simplify 5√7 + 12√6 - 10√7 - 5√6
Over [174]

Answer:

-5√7 + 7√6

Step-by-step explanation:

5√7 + 12√6 - 10√7 - 5√6

Adding like terms:-

= -5√7 + 7√6 Answer.

4 0
3 years ago
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