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3 years ago

Identify the cross section that results from slicing the three-dimensional figure with a plane that is parallel to its base

Mathematics

2 answers:

kramer3 years ago

8 0

Answer:

Its a square.

Step-by-step explanation:

Temka [501]3 years ago

5 0

Answer:

D) triangle

Step-by-step answer:

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A student thinks that the regular pentagon in the diagram

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Step-by-step explanation:

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3 years ago

Simplest form for 16/56

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3 years ago

Determine which equation is parallel to the line JK and which is perpendicular to like JK

sattari [20]

Answer:

If the equation of JK is y = mx + c, then y = mx + c' is the equation of the straight line parallel to above and $y = - \frac{1}{m}x + b$ will be perpendicular to that.

Step-by-step explanation:

Let us assume that the line JK has the equation in slope-intercept form as

y = mx + c ............. (1)

Therefore, the equation has slope = m

Now, any straight line having an equation with slope m will be parallel to line JK.

So, the equation of the straight line which is parallel to equation (1) will be

y = mx + c', where, c' is any real constant.

Now, let us assume that another straight line having equation

y = nx + a is perpendicular to the line JK i.e. equation (1).

Now, we know if two lines are perpendicular to each other then the product of their slopes will be - 1.

So, mn = - 1

⇒ $n = - \frac{1}{m}$

Therefore, the equation of a straight line which is perpendicular to equation (1) will be $y = - \frac{1}{m}x + b$ where b is any real constant. (Answer)

3 0

3 years ago

Read 2 more answers

I neeeed help realy bad

77julia77 [94]

Answer: -3x + 4, (2,-2)

Step-by-step explanation:

First, you want to get y alone on one side.

3x + y = 4

-4 -4 subtract 4 to get it on the left side.

-y -y subtract y to get it alone on the right side.

Your'e left with 3x - 4 = -y divide the whole equation by -1 do get a pos y

You then have y = -3x + 4. That's the first part of your answer.

To get the second part plug in (-3x + 4) into the y of the first equation, this is the substitution part.

-2x + 5(-3x+4) =-14 distribute the 5... -2x - 15x +20 = -14

add your like terms ( x and x) -17x + 20 = -14

Isolate your x by subtracting the 20, both sides -20 -20

-17x = -34 divide both side by 17 you get x = 2 (---- this is your first coordinate in the pair in your answer. To get the y do the same but solve for y instead of x.

3 0

3 years ago