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3 years ago

Which of the following represents an arithmetic sequence?

Mathematics

1 answer:

kicyunya [14]3 years ago

6 0

Answer:

5=3+2

7=5+2

9=7+2

so this is 3,5,7,9

Step-by-step explanation:

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Hey guys I need help on maths.

Pepsi [2]

Answer:

x=122°

Step-by-step explanation:

sum of all interior angles in a quadrilateral = 360°

then ,

119+105+78+m = 360

m = 58

....

m+ x = 180 ( linear pair)

58+x = 180

x = 122

4 0

3 years ago

What is x? ............

Sidana [21]

Answer:

Step-by-step explanation:

so we do 2x+5+x-3+3x+1=39

6x+3=39

6x=36

divide by 6 and then x=6

4 0

3 years ago

Solve the following quadratic equations by any method. The solutions are:

Nataly_w [17]

Answer:

Option C .

Step-by-step explanation:

We would like to solve the below quadratic equation ,

$\longrightarrow f(x) = x^2-12x +32$

Step 1 : Equate f(x) with 0 :-

$\longrightarrow f(x) = 0\\$

$\longrightarrow x^2-12x + 32=0$

Step 2 : Factorise the RHS :-

$\longrightarrow x^2-8x - 4x +32=0\\$

$\longrightarrow x(x-8)-4(x-8)=0\\$

$\longrightarrow (x-8)(x-4)=0\\$

Step 3 : Equate each factor with 0 :-

$\longrightarrow x - 8 = 0\\ \qquad x -4=0$

$\longrightarrow x = 8 \qquad x = 4$

$\longrightarrow \underline{\underline{\boldsymbol{ x = 8,4}}}$

Hence option C is correct .

8 0

2 years ago

-x-4(x-2) Help please

Keith_Richards [23]

Answer:

-5x+8

Step-by-step explanation:

7 0

3 years ago

What kind (type) of decimal number cannot be perfectly converted to fraction form? It can only be estimated by a fraction?

OverLord2011 [107]

Answer:

Repeating decimals

Step-by-step explanation:

They go on forever, the never stop

Hope this helps :)

8 0

3 years ago