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3 years ago

Can someone please explain this for me

Mathematics

2 answers:

borishaifa [10]3 years ago

7 0

Answer:

here is the simple explanation

Step-by-step explanation:

plz mark me as a brainliest

tangare [24]3 years ago

6 0

Answer:

When dividing fractions, you must have the fractions in a/b form, you must flip the second fraction, then you must change the division sign to multiplication.

To solve the first problem, 1/2 ÷ 3/4, here are the steps:

Step 1: Make sure both fractions are in a/b form, in this case they are

Step 2: Flip the second fraction: so basically we're turning 3/4 into 4/3

Step 3: Change the division sign to multiplication

Step 4: Solve

1/2 • 4/3 = 4/6 = 2/3

To solve the second problem, follow these steps

Step 1: Make sure both fractions are in a/b form, we need to turn 1 1/3 into the improper fraction 4/3. The second fraction does not need to be changed because it is already in a/b form

Step 2: Multiply Across:

4/3 • 3/4 = 12/12 = 1

Step-by-step explanation:

I hope this helps!

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garri49 [273]

Answer:

1hr = 60min

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3 years ago

1. (3n+2)(n+3)<br> this is multiplying binomial by a binomial

-Dominant- [34]

Using the distributive property with FOIL:

(3n + 2) ( n + 3)

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3 years ago

What are ways using coordinate geometry, that I could determine that this is a trapezoid?

NemiM [27]

One method to see it's a trapezoid is to find the slope of lines BC and AD.

The slope formula is

m = (y2-y1)/(x2-x1)

You should find that BC and AD both have the same slope (of -1), so that means the lines are parallel. That proves we have a trapezoid.

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

To prove this trapezoid is isosceles, you can use the distance formula

$d = \sqrt{ \left(x_1-x_2\right)^2 + \left(y_1-y_2\right)^2}$

to find the lengths of AB and CD (the two non-parallel sides). You should find that AB = CD.

Because AB and CD are horizontal and vertical respectively, this means you can simply count out the spaces to find that AB and CD are 3 units each. For any other rotated version of this trapezoid, use the distance formula instead.

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3 years ago

Write down an (in)equality which describes the solid ball of radius 3 centered at (7,1,−1). It should have a form like x2+y2+(z−

masya89 [10]

Answer:

$(x-7)^2+(y-1)^2+(z+1)^2-9\le 0$