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3 years ago

What is the Difference between 8 and -4

Mathematics

2 answers:

pav-90 [236]3 years ago

8 0

Answer:

One is postive and the other is negative but both are integers and whole numbers

Step-by-step explanation:

Alex777 [14]3 years ago

7 0

Answer:

Step-by-step explanation:

the difference between 8 and -4 is 8-(-4).

Since there are two negative signs for 4, - times - is positive, it is the sum of 8+4.

8+4=12

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Solve the quadratic equation (2x-3)^2 = 6(3-2x)

LenKa [72]

Answer:

$x=\frac{3\sqrt{2}-3 }{2}$

$x=-\frac{3\sqrt{2}-3 }{2}$

Step-by-step explanation:

Open the brackets first:

$4x^2+9=18-12x$

Simplify:

$4x^2+12x-9=0$

It is determined that this can't be factored, so rewrite the equation so you can complete the square.

$x^2+3x=\frac{9}{4}$

Take the square of 1.5 and add it to both sides:

$x^2 + 3x+ \frac{9}{4} =\frac{9}4} +\frac{9}{4}$

Factor:

$(x+\frac{3}{2})^2=\frac{9}{2}$

$x+\frac{3}{2} = \frac{3\sqrt{2} }{2 }$

or $x+\frac{3}{2} =-\frac{3\sqrt{2} }{2}$

So $x=\frac{3\sqrt{2}-3 }{2}$

or $x=-\frac{3\sqrt{2}-3 }{2}$

5 0

2 years ago

To be able to compete in a particular class, a bodybuilder can weigh in at no more than

adell [148]

Answer:

Range of weight = 176 - 146 pound

Step-by-step explanation:

Given:

Maximum weight = 175 pound

Minimum weight = 145 pound

Clothes weight = 1 pound

Find:

Range of weight

Computation:

Range = maximum weight - 1 pound

Range = minimum weight + 1 pound

Range = 175 - 1 pound

Range = 145 + 1 pound

Range = 174

Range = 146

Range of weight = 176 - 146 pound

4 0

3 years ago

Rhett was solving the algebraic proof below. What reason is missing from his

klemol [59]

Answer:

Adding the variables

Step-by-step explanation:

3 0

2 years ago

The Ratio of cats to dogs is 3:4. if there are 12 cats, how many dogs are there?

Elena L [17]

I think it is 16 dogs but I’m not sure

5 0

2 years ago

Find the value of 30^3+20^3-50^3

bearhunter [10]

Answer:

-90000

Step-by-step explanation:

30^3=30*30*30=27000

20^3=20*20*20=8000

50^3=50*50*50=125000

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

27000+8000-125000

35000-125000

-90000

3 0

2 years ago