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3 years ago

1.2x=6 what is the answer

Mathematics

1 answer:

kifflom [539]3 years ago

7 0

Answer:

To figure this out we need to balance out the equation.

When a number is right next a variable, it is considered as multiplication. So, to balance the equation we need to divide.

Step-by-step explanation:

1.2/1.2 =x

1.2/6=5

Answer; x=5

You might be interested in

Solve the equation x. If a solution is extraneous, be sure to identify it in your final answer.

Igoryamba

Answer:

x=2 is the only solution

Step-by-step explanation:

The given expression is;

$\sqrt{x+7}-1=x$

Add 1 to both sides of the equation;

$\sqrt{x+7}=x+1$

Square both sides ;

$(\sqrt{x+7})^2=(x+1)^2$

$x+7=x^2+2x+1$

This implies that;

$x^2+2x-x+1-7=0$

$x^2+x-6=0$

Split the middle term

$x^2+3x-2x-6=0$

$x(x+3)-2(x+3)=0$

$(x+3)(x-2)=0$

x=-3,or x=2

Check for extraneous solutions by substituting into the original equation.

When x=-3,

$\sqrt{-3+7}-1=-3$

$\sqrt{4}-1\ne-2$

This is an extraneous solution.

When x=2,

$\sqrt{2+7}-1=2$

$\sqrt{9}-1=2$

$3-1=2$ . This is true

This is not an extraneous solution

6 0

4 years ago

Use long division to find the quotient below.

adelina 88 [10]

X+6 is the correct answer

8 0

3 years ago

En el triángulo rectángulo ABC (B= 90°) se tiene que: Sen A = 1/3.Calcula sen C

ELEN [110]

Hi,

Podemos afirmar que en el triángulo rectángulo ABC el Sen(C) viene siendo 0.94 y el Sen(A) viene siendo 1/3.

Explicación:

Tenemos un triángulo rectángulo donde se cumple que sen(A) = 1/3, veamos cuánto vale este ángulo:

A = arcsen(1/3)

A = 19.47º

Ahora, si es un triángulo rectángulo significa que tiene un ángulo recto y además la suma de los ángulos internos debe ser igual a 180º, entonces:

A + B + C = 180º

19.47 + 90 + C = 180º

C = 70.53º

Finalmente:

Sen(70.53º) = 0.94

Por tanto, podemos afirmar que en el triángulo rectángulo el Sen(C) viene siendo 0.94.

4 0

4 years ago

35=22x-12x+5? Multiple step

earnstyle [38]

First you do 22x-12x= 10x
so you get 35=10x+5
then you do 35-5 to get 30=10x
then you divide by 10 on both sides to get
x=3

8 0

3 years ago

Read 2 more answers

Give the values of the coefficients [a], [b], and [c] regarding the product in the form of ax^2+bx+c. Use "0" if the term isn't

Darya [45]

<h3>Answer: a = 1, b = 0, c = -49</h3>

==================================================

Explanation:

Expand out the expression using the FOIL rule

(x+7)(x-7)

x^2 - 7x + 7x - 49

1x^2 + 0x - 49

We see that a = 1, b = 0, c = -49

-------------

Another way to expand is to do the following

(x+7)(x-7)

y(x-7) .... let y = x+7

xy - 7y .... distribute

x( y ) - 7( y )

x( x+7 ) - 7( x + 7 ) ... replace y with x+7

x^2 + 7x - 7x - 49 .... distribute

1x^2 + 0x - 49

We get the same result.

-------------

Lastly, a shortcut can be used as yet another method to expand.

The shortcut is the difference of squares rule

(a + b)(a - b) = a^2 - b^2

In this case, a = x and b = 7, so,

(a + b)(a - b) = a^2 - b^2

(x + 7)(x - 7) = x^2 - 7^2

(x + 7)(x - 7) = x^2 - 49

(x + 7)(x - 7) = 1x^2 + 0x - 49

5 0

3 years ago