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4 years ago

What is the value of x the equation 4x-(x+3)=8

Mathematics

2 answers:

d1i1m1o1n [39]4 years ago

8 0

Answer:

x=11/3

Step-by-step explanation:

qaws [65]4 years ago

8 0

Answer:

x=11/3

Step-by-step explanation:

4x-(x+3)=8

4x-x-3=8

3x-3=8

x=11/3

Hope this helps!! :)

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What is the slope of a line perpendicular to the line whose equation is

oksian1 [2.3K]

Answer:

The slope is 2/3

Step-by-step explanation:

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3 years ago

I need help solving this problem: 5x+8+3x=8+7x-6

Alex787 [66]

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4 years ago

Evaluate the expression when a= 1/4 and b= 6<br> 5b/32a2=?

Aliun [14]

Answer:

30/64

Step-by-step explanation:

5b=30

32a=8

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4 0

3 years ago

Multiply (2.5x10^-10) (7x10^-6)

serious [3.7K]

We want to multiply $2.5\cdot10^{-10}$ by $7\cdot10^{-6}$ .

The numbers are written in scientific notation. So we expect the answer also to be in scientific notation.

the multiplication of the 10's, using the exponents rule is :

$10^{-10}\cdot 10^{-6}=10^{-10+(-6)}=10^{-10-6}=10^{-16}$

the multiplication of the other 2 numbers is:

$2.5\cdot7=17.5=1.75\cdot10$

(we write the number so that it has only one digit to the left of the decimal point).

Thus,

$(2.5\cdot10^{-10})\cdot(7\cdot10^{-6})=1.75\cdot10\cdot10^{-16}=1.75\cdot10^{-15}$

Answer: $1.75\cdot10^{-15}$

6 0

4 years ago

Read 2 more answers

X^2-12x+__=(x-__)2<br> what’s the answer??

Deffense [45]

Answer: The answer is x=0

Step-by-step explanation:

Rewrite the equation as a trinomial.

x 2 + 12 x + 0

Move 0 to the right-hand side.

x 2 + 12 x = 0

Divide the coefficient of the x

-term by 2, then square the result. Add the result to both sides.

12 /2 = 6 ;6^2 = 36

x 2 + 12 x + 36 = 36

Factor the perfect square trinomial

x 2 + 12 x + 36

on the left-hand side.

( x + 6 ) 2 = 36

Take the square root of both sides and solve for x .

√ ( x + 6 )^ 2 = ± √ 36 =

x+ 6 = ± 6

x = − 6 + 6 = 0

x = − 6 − 6 = − 12

Check

If x = 0 :

( 0 ) ^2 + 12 ( 0 ) = 0

0 = 0

If x = − 12 :

( − 12 ) ^2 + 12 ( − 12 ) = 0

144 − 144 = 0

0 = 0

3 0

3 years ago