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3 years ago

Each leg of a 45 45 90 triangle measures 12cm what is the length of the hypotenuse

2 answers:

7 0

This a right isosceles triangle. Then we can apply Pythagoras:

(hypotenuse)² = 12² +12²

(hypotenuse)² = 144 + 144 = 288

hypotenuse = √288 = 16.97 cm

blondinia [14]3 years ago

7 0

There is one rule for 45-45-90 right triangles.
Hyp = sqrt2 * leg
Hyp = 12sqrt2

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Quadratic equation please help

Andre45 [30]

Answer:

x= -3+√2 or x= -3-√2 ( answer : A and B )

Step-by-step explanation:

hello :

x²+6x+9 = (x+3)².....identity

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Dvds are for $24 each,felipe write the expression 4 times 24 to find the costin dollars of buying 4 dvds, how can i rewrite feli

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The distributive property states that:

a(b+c)=ab+bc.

or more generally: a(b+c+d)=ab+av+ad.

This is a very useful tool to perform multiplication.

For example, if we want to multiply 7 by 234, we can proceed as follows:

7*234=7(200+30+4)=7*200+7*30+7*4=1400+210+28=1610+28=1638

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4 * 24 = 4(20+4)=4*20+4*4=80+16=96 ($)

So, instead of multiplying 4 by 24, we multiplied 4 by 20 and 4, which is easier, and then added these together.

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4 * 24 = 4(20+4) [=4*20+4*4=80+16=96 ($)]

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2 years ago

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Brut [27]

Answer:

42 ft²

Step-by-step explanation:

Rectangle Area: L * W

$\bf A=(8ft)(6ft)$

$\bf 48 \; ft^2$

$\bf A= (3ft)(2ft)$

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Teh slope between two points is calculated by finding the change in y-values and dividing by the change in x-values. for example

Nimfa-mama [501]

Hi there!

The change of y-values is
- 15 - 22 = - 37
The change of x-values is
7 - - 8 = 7 + 8 = 15

Therefore, the slope of this line is
$\frac{ - 37}{15} = - 2 \frac{7}{15}$

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2 years ago