3 years ago

What the area of the triangle! need help with these question would mean a lot

Mathematics

1 answer:

zloy xaker [14]3 years ago

3 0

Heyy I don’t think your pictures are loading it just shows grey

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Which of the following statements correctly illustrate the addition property of equality?

liubo4ka [24]

Answer:

x - y + z = 8

2x +3y -z= -2

3x - 2y -9z = 9

Step-by-step explanation:

[1 - 1 1 8]

[2 3 -1 -2]

[3 -2 -9 9]

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3 years ago

A tennis tournament has 2n contestants. We want to pair them up for the first round of singles matches. Show that the number of

ddd [48]

There are

$\dbinom{2n}2 = \dfrac{(2n)!}{2! (2n-2)!}$

ways of pairing up any 2 members from the pool of $2n$ contestants. Note that

$(2n)! = 1\times2\times3\times4\times\cdots\times(2n-2)\times(2n-1)\times(2n) = (2n-2)! \times(2n-1) \times(2n)$

so that

$\dbinom{2n}2 = \dfrac{(2n)\times(2n-1)\times(2n-2)!}{2! (2n-2)!} = \boxed{n(2n-1)}$

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2 years ago

4. Sam Howard's bank charges a $1.23

Mamont248 [21]

The answer is D I know that because I do this all the time

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3 years ago

Help me ASAP please I don't understand it please help It is dued by TONIGHT

Sergeu [11.5K]

So, the first blank is for what kind of angle it is: acute, obtuse, reflex, straight, or right. The second blank is for what the measure of the angle is. You can find that out by looking at the protractor. It should tell you what the measure of the angle is. You can read the protractor by looking at the numbers. The numbers are the degrees of incline the angle measures, which is what you're looking for.

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3 years ago

Im looking for salena

olga nikolaevna [1]

Answer:

have you found salena yet?

Step-by-step explanation:

try looking behind your nearest Mcdonalds

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2 years ago

Read 2 more answers