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4 years ago

Proceed with caution Really hard question.

Mathematics

1 answer:

viva [34]4 years ago

4 0

factor out the x+1 from the numerator and denominator to get $\frac{1}{x^2 - x}$

denominator: x³ - x = x(x² - 1) x(x-1)(x+1)

Answer: J

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Does this set of ordered pairs represent a function? (-1,5)(0,-3)(2,7)(4,0)(7,5)

ruslelena [56]

Answer:

Step-by-step explanation:

You cant have 2 y values

6 0

3 years ago

Read 2 more answers

I need assistance :D, Instructions: Using the image, find the distance between the points given on the graph.

kogti [31]

Answer:

Step-by-step explanation:

You have to use the distance formula to find that distance. The formula is:

$d=\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}$

Let's call the first point x1, y1 (4, -1) and the second point x2, y2 (0, -2). Plugging into our formula then gives us this:

$d=\sqrt{ (0-4)^2+(-2-(-1))^2}$

which simplifies to

$d=\sqrt{(-4)^2+(-1)^2}$ which is

$d=\sqrt{17}$ ≈ 4.123 units

3 0

3 years ago

Solve the problem.A plane flying a straight course observes a mountain at a bearing of 35° to the right of its course. At that t

Mice21 [21]

Given:

A plane flying a straight course observes a mountain at a bearing of 35° to the right of its course.

The distance between plan and mountain is 10 km.

A short time later, the bearing to the mountain becomes 45°.

Here NM is the distance between the plane from the mountain when the second bearing is taken.

We need to find the measure of NM.

$We\text{ know that }\angle INM\text{ and }\angle\text{XNM are supplementary angles.}$

The sum of the supplementary angles is 180 degrees.

$\angle INM+\angle XNM=180^o$ $\text{Substitute }\angle XNM=45^o\text{ in the equation.}$

$\angle INM+45^o=180^o$

$\angle INM=180^o-45^o$

$\angle INM=135^o$

We know that the sum of all three angles of the triangle is 180 degrees.

$\angle INM+\angle NIM+\angle INM=180^o$ $\text{Substitute }\angle INM=135^o\text{ and }\angle NIM=35^o\text{ in the equation.}$

$135^o+35^o+\angle INM=180^o$

$170^o+\angle INM=180^o$

$\angle INM=180^o-170^o$

$\angle INM=10^o$

Consider the sine law.

$\frac{\sin N}{IM}=\frac{\sin M}{IN}=\frac{\sin I}{NM}$

Take the equation to find the measure of NM.

$\frac{\sin N}{IM}=\frac{\sin I}{NM}$ $\text{Substitute }\angle N=135^o,\angle I=35^o,\text{ and IM=10 in the equation.}$

$\frac{\sin 135^o}{10}=\frac{\sin35^o}{NM}$

$NM=\frac{\sin 35^o}{\sin 135^o}\times10$ $NM=8.11$

Hence the measure of NM is 8.1 km.

The plane is 8.1 km far from the mountain when the second bearing is taken.

5 0

1 year ago

If every 4 cm on a scale drawing is equal to 3 yards in real life, which of the scaled-drawing lengths below would be less than

WARRIOR [948]

Answer:

B and C

Step-by-step explanation:

Firstly do 16/4 which gives you 4 and then times that by 4 to give you 12 yards. Rinse and repeat this to find out how many yards are in each situation.

3 0

3 years ago

The integers of -5 and 5 are called

qwelly [4]

The integers are called the opposites because they are on the opposite side of zero.

3 0

3 years ago