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postnew [5]
3 years ago
7

8^x=2 what is x please help

Mathematics
2 answers:
Viktor [21]3 years ago
6 0
X=1/3 Here is the work:

olga2289 [7]3 years ago
3 0

Answer:

Step-by-step explanation:

8 = 2^3

So 8^x =2 is 2^3x =2

Now they are same base.

So 3x =1 , x= 1/3

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I need help, i don’t understand how to do it
3241004551 [841]
Hai , you can use Pythagoras Theorem to find the length which is hypotenuse.

It will be 7^2 + 3^2 = 58

square root 58 and you will get 7.62

Hope this helps and i am sorry if my answer was wrong .
3 0
2 years ago
What is 2 times 2 1/4
zlopas [31]

Answer:

4.5

Step-by-step explanation:

You can change 1/4 to a decimal and then multiply 2×2.25

7 0
2 years ago
The sixth grade class is going to the local art musem's dinoaurexhibit. There was 52 students in the class. The total cost of th
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7 0
3 years ago
Read 2 more answers
What kind of shape is this? O A. Not a polygon O B. Triangle O c. Quadrilateral O D. Pentagon​
Sophie [7]

Answer:

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6 0
3 years ago
The 12th term of a sequence is 41 and the 15th term is 140. What is the nth term?
OLga [1]
An= mth term.
an=a₁+(n-1)*d

a₁₂=41
a₁₅=140

a₁₂=41
41=a₁+(12-1)*d
41=a₁+11d 
a₁+11d=41    (1)

a₁₅=140
140=a₁+(15-1)*d
140=a₁+14d 
a₁+14d=140    (2)

With the equiations (1) and (2)  build a system of equations
a₁+11d=41
a₁+14d=140

we solve it.
-(a₁+11d=41)
  a₁+14d=140
--------------------
       3d=99  ⇒d=99/3=33

a₁+11d=41
a₁+(11*33)=41
a₁+363=41
a₁=41-363=-322

an=a₁+(n-1)*d
an=-322+(n-1)*33
an=-322+33n-33
an=-355+33n

an=-355+33n

To check:
a₁₂=-355+33*12=-355+396=41
a₁₅=-355+33*15=-355+495=140.
3 0
3 years ago
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