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3 years ago

7. Why does the formula for a triangle have 1/2 in the equation?

Mathematics

2 answers:

ollegr [7]3 years ago

8 0

Answer:

i believe due to the fact it is half of a rectangle.

Step-by-step explanation:

Furkat [3]3 years ago

3 0

Well because we measure an area of a triangle by 1/2xBasexheight for an. equilateral triangle each angle is equal to 50 degrees

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Answer:

216 mi/h

Step-by-step explanation:

The time for the trip with the wind is ...

(1080 mi)/(225 +45 mi/h) = 4 h

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The difference of two trinomials is x2 − 10x + 2. If one of the trinomials is 3x2 − 11x − 4, then which expression could be the

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Answer:

$4x^2-21x-2$

Step-by-step explanation:

Given that:

Difference of two trinomials is $x^2 - 10x + 2$

One of the two trinomials is $3x^2 - 11x - 4$

To find:

The other trinomial = ?

Four options are:

$2x2 - x - 2 \\2x2 + x + 6 \\4x2 + 21x + 6\\ 4x2 - 21x - 2$

Solution:

Let the two trinomials be A and B.

Given A - B = $x^2 - 10x + 2$

B = $3x^2 - 11x - 4$

We have to find the other trinomial A.

A - B = $x^2 - 10x + 2$

A - ( $3x^2 - 11x - 4$ ) = $x^2 - 10x + 2$

$\Rightarrow$ A = $x^2 - 10x + 2$ + ( $3x^2 - 11x - 4$ )

$\Rightarrow$ A = $4x^2-21x-2$

So, the correct answer is $4x^2-21x-2$ .

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3 years ago

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3 years ago

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So George did't put parentheses around total snack amount to subtract his $15.He would need the total purchases to subtract amount by $15.

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4 years ago

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7. Why does the formula for a triangle have 1/2 in the equation?​

7. Why does the formula for a triangle have 1/2 in the equation?