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LuckyWell [14K]
3 years ago
12

Solve for x: -2x + 11 = 23 6 -6 12 -12

Mathematics
1 answer:
zheka24 [161]3 years ago
3 0

Answer:

x = -6

Step-by-step explanation:

You might be interested in
Plz help asap.. I have no idea how to do this.
kondor19780726 [428]

Answer:

286

Step-by-step explanation:

Use term formula for +/-

Tn = a + (n-1)d

n= number of term

a= first number in sequence

d= difference between each number

T55 = 16 + (55-1)5

T55 = 16 + 270

=286

6 0
3 years ago
Read 2 more answers
A student organization wondered how many hours per week college students study during a term. Each of the 10 students in the org
Inga [223]

Answer:

No, a convenience sample was taken.Therefore, the sample may not be representative of all college students in terms of number of hours studied per week.

Step-by-step explanation:

One of the important conditions required in other to estimate the mean of the population from the confidence interval. Requires that the data must be a random Sample. This is to ensure that sample values are not biased and as such are representative of the larger group of data.

However, in the scenario described above, the sample chose. Are friend's of the student, this makes the data lack randomness as those who aren't friends to the student do not stand a chance of being selected. The sampling procedure employed is called convenience sampling.

4 0
3 years ago
4g^2+9/h^2+7g^2+4/h^2+1​
SashulF [63]

Answer:

   11g2h2 + h2 + 13

 ———————————

                h2      

Step-by-step explanation:

Step  1  :

            4

Simplify   ——

           h2

Equation at the end of step  1  :

               9              4

 ((((4•(g2))+————)+(7•(g2)))+——)+1

             (h2)            h2

Step  2  :

Equation at the end of step  2  :

               9         4

 ((((4•(g2))+————)+7g2)+——)+1

             (h2)       h2

Step  3  :

            9

Simplify   ——

           h2

Equation at the end of step  3  :

              9        4

 ((((4•(g2))+——)+7g2)+——)+1

             h2       h2

Step  4  :

Equation at the end of step  4  :

             9              4    

 (((22g2 +  ——) +  7g2) +  ——) +  1

            h2             h2    

Step  5  :

Rewriting the whole as an Equivalent Fraction :

5.1   Adding a fraction to a whole

Rewrite the whole as a fraction using  h2  as the denominator :

            22g2     22g2 • h2

    22g2 =  ————  =  —————————

             1          h2    

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

5.2       Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

22g2 • h2 + 9     4g2h2 + 9

—————————————  =  —————————

     h2              h2    

Equation at the end of step  5  :

   (4g2h2 + 9)             4    

 ((——————————— +  7g2) +  ——) +  1

       h2                 h2    

Step  6  :

Rewriting the whole as an Equivalent Fraction :

6.1   Adding a whole to a fraction

Rewrite the whole as a fraction using  h2  as the denominator :

          7g2     7g2 • h2

   7g2 =  ———  =  ————————

           1         h2  

Adding fractions that have a common denominator :

6.2       Adding up the two equivalent fractions

(4g2h2+9) + 7g2 • h2      11g2h2 + 9

————————————————————  =  ——————————

         h2                  h2    

Equation at the end of step  6  :

  (11g2h2 + 9)     4    

 (———————————— +  ——) +  1

       h2         h2    

Step  7  :

Adding fractions which have a common denominator :

7.1       Adding fractions which have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

(11g2h2+9) + 4     11g2h2 + 13

——————————————  =  ———————————

      h2               h2    

Equation at the end of step  7  :

 (11g2h2 + 13)    

 ————————————— +  1

      h2          

Step  8  :

Rewriting the whole as an Equivalent Fraction :

8.1   Adding a whole to a fraction

Rewrite the whole as a fraction using  h2  as the denominator :

        1     1 • h2

   1 =  —  =  ——————

        1       h2  

Adding fractions that have a common denominator :

8.2       Adding up the two equivalent fractions

(11g2h2+13) + h2     11g2h2 + h2 + 13

————————————————  =  ————————————————

       h2                   h2      

Trying to factor a multi variable polynomial :

8.3    Factoring    11g2h2 + h2 + 13

Try to factor this multi-variable trinomial using trial and error

Factorization fails

Final result :

 11g2h2 + h2 + 13

 ————————————————

        h2      

Processing ends successfully

plz mark me as brainliest :)

6 0
3 years ago
The height of a triangle is 4 in. greater than twice its base. The area of the triangle is no more than 168 in.2. Which inequali
netineya [11]

Let

x-------> the length of the base of triangle

y-------> the height of the triangle

we know that

the area of the triangle is equal to

A=\frac{1}{2}xy

in this problem we have

A \leq 168\ in^{2}

so

\frac{1}{2}xy\leq 168 --------> equation 1

y=2x+4 --------> equation 2

Substitute equation 2 in equation 1

\frac{1}{2}x[2x+4]\leq 168

x^{2}+2x \leq 168

therefore

<u>the answer is</u>

The inequality that can be used to find the possible lengths, x, of the base of the triangle is  \frac{1}{2}x[2x+4]\leq 168 or x^{2}+2x \leq 168

5 0
4 years ago
Read 2 more answers
-15x=-4x... How to move the x to the left?
Delvig [45]
-15x=-4x

We know that adding zero wouldn’t change the value

-15x=-4x+0

Now we can add 4x (since that’s the opposite of the negative sign) to the other side

-11x=0

0 divided by 11 is 0

x=0
4 0
3 years ago
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