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3 years ago

15

What's the meaning of –(–3)?

2 answers:

Liula [17]3 years ago

4 0

Answer:

+3

Step-by-step explanation:

if your subtracting a negitive it means your adding and its now a positive

aniked [119]3 years ago

4 0

-(-3) is equal to a positive 3

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Explain the difference between |-3| and -3?

Ivan

They are opposites. since |-3| has the lines around it, this represents absolute value, which is not positive or negative but how far away the value is from 0. the plain -3 remains the same. |-3| is 3, because it is 3 units away from 0 on the number line.

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3 years ago

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Find the slope of the line through each pair of points. (1/2, 2/3) and (3/2, 5/3)

solniwko [45]

$\bf (\stackrel{x_1}{\frac{1}{2}}~,~\stackrel{y_1}{\frac{2}{3}})\qquad (\stackrel{x_2}{\frac{3}{2}}~,~\stackrel{y_2}{\frac{5}{3}}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{~~\frac{5}{3}-\frac{2}{3}~~}{\frac{3}{2}-\frac{1}{2}}\implies \cfrac{~~\frac{3}{3}~~}{\frac{2}{2}}\implies \cfrac{1}{1}\implies 1$

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4 years ago

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Art [367]

Answer:

.

<_>

.

()_()

.

Step-by-step explanation:

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3 years ago

mezya [45]

Answer:

15 and one-half

Step-by-step explanation:

14/2 + 3(4) - (6.5 - 3)

<em>Use PEMDAS</em>

14/2 + 3(4) - 3.5

<em>Use PEMDAS</em>

7 + 12 - 3.5

<em>Use PEMDAS</em>

15.5

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3 years ago

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select whether the equation has a solution or not, square root x-2- square root 2x= square root x+2 (a. roots b. no roots)

Agata [3.3K]

The equation is $\sqrt{x-2 \\ \\$ - $\sqrt{2x}$ = $\sqrt{x +2}$

Solution

<u>Step 1:</u>

Take square on both sides, we get

3x - 2 $\sqrt{x-2}$ $\sqrt2{x}$ -2 = x +2

<u>Step 2:</u>

Subtract 3x - 2 from both sides, we get

-2 $\sqrt{x-2} \sqrt{2x} = -2x + 4$

<u>Step 3:</u>

Again, square on both sides in order to get rid of the square root from the above equation, we get

$8x^{2}-16x = 4x^{2} -16x +16$

Now we have to simplify it,

$4x^{2} -16 = 0$

<u>Step 4:</u>

Now we have to solve this quadratic equation, in order to get the solution.

We get x = 2 and x = -2, When we verifying solution in the original given equation, the solution does not satisfy the equation.

Reason: We get negative number in the square root.

Therefore, it has no Roots.

<em>Answer: b) No roots</em>

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3 years ago