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Aloiza [94]
4 years ago
5

Is the product of -5 +x and x+4 equal to the product of 5+x and x-4? Explain your answer.

Mathematics
2 answers:
beks73 [17]4 years ago
8 0

Let's find out!

-5 + x * x + 4.

-5 + x^2 + 4.

-5 + 4 + x^2.

-1 + x^2.

5 + x * x - 4.

5 + x^2 - 4.

5 - 4 + x^2.

1 + x^2

So, they are NOT the same, because one of the "1"'s are negative, and the other is positive.

son4ous [18]4 years ago
3 0

Answer:

The product of -5+x and x+4 is not equal to 5+x and x-4

Step-by-step explanation:

If we substitute x for 1, we can solve the first equation and get -20.    However, when we solve the second equation, we get the answer -18. These products are not equal and therefore the answer would be no. If we substitute x for 2 to check our answer, we find that the first equation is -18. the second equation is -14. This proves that they are not equal.

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Write this ratio as fraction in lowest terms.<br> $5.64 to $2.48 is
Nana76 [90]

Answer:

2\frac{17}{62}

Step-by-step explanation:

5.64 : 2.48

2.82 : 1.24

1.41 : 0.62

\frac{1.41}{0.62}=\\\\\frac{141}{62}=\\\\2\frac{17}{62}

8 0
3 years ago
What is the range for this set of data?<br> 7, 15, 12 <br> 3<br> 5<br> 8<br> 1
koban [17]
8 since the range is the highest number minus the lowest.
5 0
2 years ago
True or False: If we have an integer primal solution with cost C and a fractional dual solution with cost at least C/2, the size
maria [59]

Answer:

True

Step-by-step explanation:

The size of the vertex cover is atleast twice the size of the maximum edge. Vertex must contain atleast one vertex from the matched edge. Vertex are never the strong dual solutions of each other.

3 0
3 years ago
It would be nice if anyone could help<br>​
Allushta [10]
<h3>Answer:  x = 140   (choice C)</h3>

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

Explanation:

Focus on the upper semicircle. It's composed of the arc pieces that are 30 degrees, x degrees, and y degrees. The y is the missing unmarked portion of the upper semicircle.

Subtract the 30 and y degree angles, divide by 2, and set that result equal to 10. This will help us solve for y

(30-y)/2 = 10

30-y = 10*2

30-y = 20

-y = 20-30

-y = -10

y = 10

Because the 30, x and y arcs form a semicircle, this must mean the three arcs add to 180 degrees

30+x+y = 180

30+x+10 = 180

x+40 = 180

x = 180-40

x = 140

5 0
3 years ago
You put $2000 in an account with a simple interest rate of 1.5%. How long does it take for the account to earn $60?
djverab [1.8K]

Answer:

2 years

Step-by-step explanation:

Simple interest is calculated using the formula:  I = prt, where I = the amount of interest earned, p = principal amount, r = rate and t = time.  In this case, you know the principal = $2000, the rate  = 1.5% or 0.015 and the I = $60, so you are solving for time 't':

I = prt or $60 = $2000(0.015)t

Simplify:  60 = 30t

Divide both sides by 30:  60/30 = 30t/30 or t = 2 years.

3 0
3 years ago
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